Author: "Edoardo Cucchetti" - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"Edoardo Cucchetti"' showing total 18 results

Start Over Author "Edoardo Cucchetti"

18 results on '"Edoardo Cucchetti"'

1. Image Quality of Spectral Filter Arrays for Planetary Rover Applications: From Demosaicing to Color Correction.

Author: Edoardo Cucchetti, Emilie Robert, Alexandre Delahaye, Mathieu Boutillier, Christophe Latry, Karine Mathieu, Nicolas Théret, and Cédric Virmontois
Published: 2022
Full Text: View/download PDF

2. Hue-specific Color Correction for Raw-RGB Images.

Author: Emilie Robert, Magali Estribeau, Cédric Virmontois, Pierre Magnan, Justin Plantier, and Edoardo Cucchetti
Published: 2022
Full Text: View/download PDF

3. The Athena X-ray Integral Field Unit: a consolidated design for the system requirement review of the preliminary definition phase

Author: Didier Barret, Vincent Albouys, Jan-Willem den Herder, Luigi Piro, Massimo Cappi, Juhani Huovelin, Richard Kelley, J. Miguel Mas-Hesse, Stéphane Paltani, Gregor Rauw, Agata Rozanska, Jiri Svoboda, Joern Wilms, Noriko Yamasaki, Marc Audard, Simon Bandler, Marco Barbera, Xavier Barcons, Enrico Bozzo, Maria Teresa Ceballos, Ivan Charles, Elisa Costantini, Thomas Dauser, Anne Decourchelle, Lionel Duband, Jean-Marc Duval, Fabrizio Fiore, Flavio Gatti, Andrea Goldwurm, Roland den Hartog, Brian Jackson, Peter Jonker, Caroline Kilbourne, Seppo Korpela, Claudio Macculi, Mariano Mendez, Kazuhisa Mitsuda, Silvano Molendi, François Pajot, Etienne Pointecouteau, Frederick Porter, Gabriel W. Pratt, Damien Prêle, Laurent Ravera, Kosuke Sato, Joop Schaye, Keisuke Shinozaki, Konrad Skup, Jan Soucek, Tanguy Thibert, Jacco Vink, Natalie Webb, Laurence Chaoul, Desi Raulin, Aurora Simionescu, Jose Miguel Torrejon, Fabio Acero, Graziella Branduardi-Raymont, Stefano Ettori, Alexis Finoguenov, Nicolas Grosso, Jelle Kaastra, Pasquale Mazzotta, Jon Miller, Giovanni Miniutti, Fabrizio Nicastro, Salvatore Sciortino, Hiroya Yamaguchi, Sophie Beaumont, Edoardo Cucchetti, Matteo D’Andrea, Megan Eckart, Philippe Ferrando, Elias Kammoun, Simone Lotti, Jean-Michel Mesnager, Lorenzo Natalucci, Philippe Peille, Jelle de Plaa, Florence Ardellier, Andrea Argan, Elise Bellouard, Jérôme Carron, Elisabetta Cavazzuti, Mauro Fiorini, Pourya Khosropanah, Sylvain Martin, James Perry, Frederic Pinsard, Alice Pradines, Manuela Rigano, Peter Roelfsema, Denis Schwander, Guido Torrioli, Joel Ullom, Isabel Vera, Eduardo Medinaceli Villegas, Monika Zuchniak, Frank Brachet, Ugo Lo Cicero, William Doriese, Malcom Durkin, Valentina Fioretti, Hervé Geoffray, Lionel Jacques, Christian Kirsch, Stephen Smith, Joseph Adams, Emilie Gloaguen, Ruud Hoogeveen, Paul van der Hulst, Mikko Kiviranta, Jan van der Kuur, Aurélien Ledot, Bert-Joost van Leeuwen, Dennis van Loon, Bertrand Lyautey, Yann Parot, Kazuhiro Sakai, Henk van Weers, Shariefa Abdoelkariem, Thomas Adam, Christophe Adami, Corinne Aicardi, Hiroki Akamatsu, Pablo Eleazar Merino Alonso, Roberta Amato, Jérôme André, Matteo Angelinelli, Manuel Anon-Cancela, Shebli Anvar, Ricardo Atienza, Anthony Attard, Natalia Auricchio, Ana Balado, Florian Bancel, Lorenzo Ferrari Barusso, Arturo Bascuñan, Vivian Bernard, Alicia Berrocal, Sylvie Blin, Donata Bonino, François Bonnet, Patrick Bonny, Peter Boorman, Charles Boreux, Ayoub Bounab, Martin Boutelier, Kevin Boyce, Daniele Brienza, Marcel Bruijn, Andrea Bulgarelli, Simona Calarco, Paul Callanan, Alberto Prada Campello, Thierry Camus, Florent Canourgues, Vito Capobianco, Nicolas Cardiel, Florent Castellani, Oscar Cheatom, James Chervenak, Fabio Chiarello, Laurent Clerc, Nicolas Clerc, Beatriz Cobo, Odile Coeur-Joly, Alexis Coleiro, Stéphane Colonges, Leonardo Corcione, Mickael Coriat, Alexandre Coynel, Francesco Cuttaia, Antonino D’Ai, Fabio D’anca, Mauro Dadina, Christophe Daniel, Lea Dauner, Natalie DeNigris, Johannes Dercksen, Michael DiPirro, Eric Doumayrou, Luc Dubbeldam, Michel Dupieux, Simon Dupourqué, Jean Louis Durand, Dominique Eckert, Valvanera Eiriz, Eric Ercolani, Christophe Etcheverry, Fred Finkbeiner, Mariateresa Fiocchi, Hervé Fossecave, Philippe Franssen, Martin Frericks, Stefano Gabici, Florent Gant, Jian-Rong Gao, Fabio Gastaldello, Ludovic Genolet, Simona Ghizzardi, Ma Angeles Alcacera Gil, Elisa Giovannini, Olivier Godet, Javier Gomez-Elvira, Raoul Gonzalez, Manuel Gonzalez, Luciano Gottardi, Dolorès Granat, Michel Gros, Nicolas Guignard, Paul Hieltjes, Adolfo Jesús Hurtado, Kent Irwin, Christian Jacquey, Agnieszka Janiuk, Jean Jaubert, Maria Jiménez, Antoine Jolly, Thierry Jourdan, Sabine Julien, Bartosz Kedziora, Andrew Korb, Ingo Kreykenbohm, Ole König, Mathieu Langer, Philippe Laudet, Philippe Laurent, Monica Laurenza, Jean Lesrel, Sebastiano Ligori, Maximilian Lorenz, Alfredo Luminari, Bruno Maffei, Océane Maisonnave, Lorenzo Marelli, Didier Massonet, Irwin Maussang, Alejandro Gonzalo Melchor, Isabelle Le Mer, Francisco Javier San Millan, Jean-Pierre Millerioux, Teresa Mineo, Gabriele Minervini, Alexeï Molin, David Monestes, Nicola Montinaro, Baptiste Mot, David Murat, Kenichiro Nagayoshi, Yaël Nazé, Loïc Noguès, Damien Pailot, Francesca Panessa, Luigi Parodi, Pascal Petit, Enrico Piconcelli, Ciro Pinto, Jose Miguel Encinas Plaza, Borja Plaza, David Poyatos, Thomas Prouvé, Andy Ptak, Simonetta Puccetti, Elena Puccio, Pascale Ramon, Manuel Reina, Guillaume Rioland, Louis Rodriguez, Anton Roig, Bertrand Rollet, Mauro Roncarelli, Gilles Roudil, Tomasz Rudnicki, Julien Sanisidro, Luisa Sciortino, Vitor Silva, Michael Sordet, Javier Soto-Aguilar, Pierre Spizzi, Christian Surace, Miguel Fernández Sánchez, Emanuele Taralli, Guilhem Terrasa, Régis Terrier, Michela Todaro, Pietro Ubertini, Michela Uslenghi, Jan Geralt Bij de Vaate, Davide Vaccaro, Salvatore Varisco, Peggy Varnière, Laurent Vibert, María Vidriales, Fabrizio Villa, Boris Martin Vodopivec, Angela Volpe, Cor de Vries, Nicholas Wakeham, Gavin Walmsley, Michael Wise, Martin de Wit, Grzegorz Woźniak, Barret, Didier, Albouys, Vincent, Herder, Jan-Willem den, Piro, Luigi, Cappi, Massimo, Huovelin, Juhani, Kelley, Richard, Mas-Hesse, J. Miguel, Paltani, Stéphane, Rauw, Gregor, Rozanska, Agata, Svoboda, Jiri, Wilms, Joern, Yamasaki, Noriko, Audard, Marc, Bandler, Simon, Barbera, Marco, Barcons, Xavier, Bozzo, Enrico, Ceballos, Maria Teresa, Charles, Ivan, Costantini, Elisa, Dauser, Thoma, Decourchelle, Anne, Duband, Lionel, Duval, Jean-Marc, Fiore, Fabrizio, Gatti, Flavio, Goldwurm, Andrea, Hartog, Roland den, Jackson, Brian, Jonker, Peter, Kilbourne, Caroline, Korpela, Seppo, Macculi, Claudio, Mendez, Mariano, Mitsuda, Kazuhisa, Molendi, Silvano, Pajot, Françoi, Pointecouteau, Etienne, Porter, Frederick, Pratt, Gabriel W., Prêle, Damien, Ravera, Laurent, Sato, Kosuke, Schaye, Joop, Shinozaki, Keisuke, Skup, Konrad, Soucek, Jan, Thibert, Tanguy, Vink, Jacco, Webb, Natalie, Chaoul, Laurence, Raulin, Desi, Simionescu, Aurora, Torrejon, Jose Miguel, Acero, Fabio, Branduardi-Raymont, Graziella, Ettori, Stefano, Finoguenov, Alexi, Grosso, Nicola, Kaastra, Jelle, Mazzotta, Pasquale, Miller, Jon, Miniutti, Giovanni, Nicastro, Fabrizio, Sciortino, Salvatore, Yamaguchi, Hiroya, Beaumont, Sophie, Cucchetti, Edoardo, D’Andrea, Matteo, Eckart, Megan, Ferrando, Philippe, Kammoun, Elia, Lotti, Simone, Mesnager, Jean-Michel, Natalucci, Lorenzo, Peille, Philippe, de Plaa, Jelle, Ardellier, Florence, Argan, Andrea, Bellouard, Elise, Carron, Jérôme, Cavazzuti, Elisabetta, Fiorini, Mauro, Khosropanah, Pourya, Martin, Sylvain, Perry, Jame, Pinsard, Frederic, Pradines, Alice, Rigano, Manuela, Roelfsema, Peter, Schwander, Deni, Torrioli, Guido, Ullom, Joel, Vera, Isabel, Villegas, Eduardo Medinaceli, Zuchniak, Monika, Brachet, Frank, Cicero, Ugo Lo, Doriese, William, Durkin, Malcom, Fioretti, Valentina, Geoffray, Hervé, Jacques, Lionel, Kirsch, Christian, Smith, Stephen, Adams, Joseph, Gloaguen, Emilie, Hoogeveen, Ruud, van der Hulst, Paul, Kiviranta, Mikko, van der Kuur, Jan, Ledot, Aurélien, van Leeuwen, Bert-Joost, van Loon, Denni, Lyautey, Bertrand, Parot, Yann, Sakai, Kazuhiro, van Weers, Henk, Abdoelkariem, Shariefa, Adam, Thoma, Adami, Christophe, Aicardi, Corinne, Akamatsu, Hiroki, Alonso, Pablo Eleazar Merino, Amato, Roberta, André, Jérôme, Angelinelli, Matteo, Anon-Cancela, Manuel, Anvar, Shebli, Atienza, Ricardo, Attard, Anthony, Auricchio, Natalia, Balado, Ana, Bancel, Florian, Barusso, Lorenzo Ferrari, Bascuñan, Arturo, Bernard, Vivian, Berrocal, Alicia, Blin, Sylvie, Bonino, Donata, Bonnet, Françoi, Bonny, Patrick, Boorman, Peter, Boreux, Charle, Bounab, Ayoub, Boutelier, Martin, Boyce, Kevin, Brienza, Daniele, Bruijn, Marcel, Bulgarelli, Andrea, Calarco, Simona, Callanan, Paul, Campello, Alberto Prada, Camus, Thierry, Canourgues, Florent, Capobianco, Vito, Cardiel, Nicola, Castellani, Florent, Cheatom, Oscar, Chervenak, Jame, Chiarello, Fabio, Clerc, Laurent, Clerc, Nicola, Cobo, Beatriz, Coeur-Joly, Odile, Coleiro, Alexi, Colonges, Stéphane, Corcione, Leonardo, Coriat, Mickael, Coynel, Alexandre, Cuttaia, Francesco, D’Ai, Antonino, D’anca, Fabio, Dadina, Mauro, Daniel, Christophe, Dauner, Lea, DeNigris, Natalie, Dercksen, Johanne, DiPirro, Michael, Doumayrou, Eric, Dubbeldam, Luc, Dupieux, Michel, Dupourqué, Simon, Durand, Jean Loui, Eckert, Dominique, Eiriz, Valvanera, Ercolani, Eric, Etcheverry, Christophe, Finkbeiner, Fred, Fiocchi, Mariateresa, Fossecave, Hervé, Franssen, Philippe, Frericks, Martin, Gabici, Stefano, Gant, Florent, Gao, Jian-Rong, Gastaldello, Fabio, Genolet, Ludovic, Ghizzardi, Simona, Gil, Ma Angeles Alcacera, Giovannini, Elisa, Godet, Olivier, Gomez-Elvira, Javier, Gonzalez, Raoul, Gonzalez, Manuel, Gottardi, Luciano, Granat, Dolorè, Gros, Michel, Guignard, Nicola, Hieltjes, Paul, Hurtado, Adolfo Jesú, Irwin, Kent, Jacquey, Christian, Janiuk, Agnieszka, Jaubert, Jean, Jiménez, Maria, Jolly, Antoine, Jourdan, Thierry, Julien, Sabine, Kedziora, Bartosz, Korb, Andrew, Kreykenbohm, Ingo, König, Ole, Langer, Mathieu, Laudet, Philippe, Laurent, Philippe, Laurenza, Monica, Lesrel, Jean, Ligori, Sebastiano, Lorenz, Maximilian, Luminari, Alfredo, Maffei, Bruno, Maisonnave, Océane, Marelli, Lorenzo, Massonet, Didier, Maussang, Irwin, Melchor, Alejandro Gonzalo, Le Mer, Isabelle, Millan, Francisco Javier San, Millerioux, Jean-Pierre, Mineo, Teresa, Minervini, Gabriele, Molin, Alexeï, Monestes, David, Montinaro, Nicola, Mot, Baptiste, Murat, David, Nagayoshi, Kenichiro, Nazé, Yaël, Noguès, Loïc, Pailot, Damien, Panessa, Francesca, Parodi, Luigi, Petit, Pascal, Piconcelli, Enrico, Pinto, Ciro, Plaza, Jose Miguel Encina, Plaza, Borja, Poyatos, David, Prouvé, Thoma, Ptak, Andy, Puccetti, Simonetta, Puccio, Elena, Ramon, Pascale, Reina, Manuel, Rioland, Guillaume, Rodriguez, Loui, Roig, Anton, Rollet, Bertrand, Roncarelli, Mauro, Roudil, Gille, Rudnicki, Tomasz, Sanisidro, Julien, Sciortino, Luisa, Silva, Vitor, Sordet, Michael, Soto-Aguilar, Javier, Spizzi, Pierre, Surace, Christian, Sánchez, Miguel Fernández, Taralli, Emanuele, Terrasa, Guilhem, Terrier, Régi, Todaro, Michela, Ubertini, Pietro, Uslenghi, Michela, de Vaate, Jan Geralt Bij, Vaccaro, Davide, Varisco, Salvatore, Varnière, Peggy, Vibert, Laurent, Vidriales, María, Villa, Fabrizio, Vodopivec, Boris Martin, Volpe, Angela, de Vries, Cor, Wakeham, Nichola, Walmsley, Gavin, Wise, Michael, de Wit, Martin, Woźniak, Grzegorz, Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal, Universidad de Alicante. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías, Astronomía y Astrofísica, Agencia Estatal de Investigación (AEI), Ministerio de Ciencia e Innovación (MICINN), Centre National D'Etudes Spatiales (CNES), Agenzia Spaziale Italiana (ASI), European Space Agency (ESA), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), SRON Netherlands Institute for Space Research (SRON), Department of Physics [Helsinki], Falculty of Science [Helsinki], Helsingin yliopisto = Helsingfors universitet = University of Helsinki-Helsingin yliopisto = Helsingfors universitet = University of Helsinki, Institut d'Astrophysique et de Géophysique [Liège], Université de Liège, Centrum Astronomiczne im. M. Kopernika, Warszawa (CAMK), Faculty of Civil Engineering [Prague] (FSV CTU), Czech Technical University in Prague (CTU), Columbia Astrophysics Laboratory (CAL), Columbia University [New York], NASA Goddard Space Flight Center (GSFC), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Institut d'astrophysique spatiale (IAS), and Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES)
Subjects: X-IFU: The X-ray Integral Field Unit, Cosmology and Nongalactic Astrophysics (astro-ph.CO), The X-ray Integral Field Unit [X-IFU], Solar and stellar astrophysics, FOS: Physical sciences, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Settore FIS/05 - Astronomia E Astrofisica, X-rays, SDG 7 - Affordable and Clean Energy, Instrumentation and Methods for Astrophysics (astro-ph.IM), Solar and Stellar Astrophysics (astro-ph.SR), High Energy Astrophysical Phenomena (astro-ph.HE), Astrophysics of Galaxies, Athena: the advanced telescope for high energy astrophysics, Astronomy and Astrophysics, Astrophysics - Astrophysics of Galaxies, Astrophysical phenomena, Space instrumentation, Astrophysics - Solar and Stellar Astrophysics, High energy, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), [PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc], the advanced telescope for high energy astrophysics [Athena], Athena: the advanced telescope for high energy astrophysics · X-IFU: The X-ray Integral Field Unit · Space instrumentation · X-rays · Observatory, Observatory, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, SDG 12 - Responsible Consumption and Production, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The Athena X-ray Integral Unit (X-IFU) is the high resolution X-ray spectrometer, studied since 2015 for flying in the mid-30s on the Athena space X-ray Observatory, a versatile observatory designed to address the Hot and Energetic Universe science theme, selected in November 2013 by the Survey Science Committee. Based on a large format array of Transition Edge Sensors (TES), it aims to provide spatially resolved X-ray spectroscopy, with a spectral resolution of 2.5 eV (up to 7 keV) over an hexagonal field of view of 5 arc minutes (equivalent diameter). The X-IFU entered its System Requirement Review (SRR) in June 2022, at about the same time when ESA called for an overall X-IFU redesign (including the X-IFU cryostat and the cooling chain), due to an unanticipated cost overrun of Athena. In this paper, after illustrating the breakthrough capabilities of the X-IFU, we describe the instrument as presented at its SRR, browsing through all the subsystems and associated requirements. We then show the instrument budgets, with a particular emphasis on the anticipated budgets of some of its key performance parameters. Finally we briefly discuss on the ongoing key technology demonstration activities, the calibration and the activities foreseen in the X-IFU Instrument Science Center, and touch on communication and outreach activities, the consortium organisation, and finally on the life cycle assessment of X-IFU aiming at minimising the environmental footprint, associated with the development of the instrument. Thanks to the studies conducted so far on X-IFU, it is expected that along the design-to-cost exercise requested by ESA, the X-IFU will maintain flagship capabilities in spatially resolved high resolution X-ray spectroscopy, enabling most of the original X-IFU related scientific objectives of the Athena mission to be retained. (abridged)., Comment: 48 pages, 29 figures, Accepted for publication in Experimental Astronomy with minor editing
Published: 2023
Full Text: View/download PDF

4. A test platform for the detection and readout chain for the Athena X-IFU

Author: Kazuhiro Sakai, Mikko Kiviranta, François Pajot, G. Roudil, Edoardo Cucchetti, William B. Doriese, Gabriele Betancourt-Martinez, Michel Dupieux, Sophie Beaumont, Stephen J. Smith, L. Ravera, Carl D. Reintsema, Antoine R. Miniussi, B. D. Jackson, Joseph D. Adams, Hiroki Akamatsu, Florent Castellani, Marcel P. Bruijn, K. Ravensberg, Nicholas A. Wakeham, Luciano Gottardi, P. Peille, Jan van der Kuur, M. C. Witthoeft, Doreen Wernicke, Hervé Geoffray, Bernard Bertrand, Simon R. Bandler, Henk van Weers, Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), and Centre National d'Études Spatiales [Toulouse] (CNES)
Subjects: Cryostat, Test bench, Physics - Instrumentation and Detectors, Spectrometer, Computer science, business.industry, Readout electronics, FOS: Physical sciences, 02 engineering and technology, Instrumentation and Detectors (physics.ins-det), 021001 nanoscience & nanotechnology, 01 natural sciences, 010309 optics, Test platform, 0103 physical sciences, Calibration, Electronics, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Astrophysics - Instrumentation and Methods for Astrophysics, 0210 nano-technology, business, Instrumentation and Methods for Astrophysics (astro-ph.IM), Computer hardware
Abstract: We present a test platform for the Athena X-IFU detection chain, which will serve as the first demonstration of the representative end-to-end detection and readout chain for the X-IFU, using prototypes of the future flight electronics and currently available subsystems. This test bench, housed in a commercial two-stage ADR cryostat, includes a focal plane array placed at the 50 mK cold stage of the ADR with a kilopixel array of transition-edge sensor microcalorimeter spectrometers and associated cold readout electronics. Prototype room temperature electronics for the X-IFU provide the readout, and will evolve over time to become more representative of the X-IFU mission baseline. The test bench yields critical feedback on subsystem designs and interfaces, in particular the warm readout electronics, and will provide an in-house detection system for continued testing and development of the warm readout electronics and for the validation of X-ray calibration sources. In this paper, we describe the test bench subsystems and design, characterization of the cryostat, and current status of the project., Comment: 11 pages, 4 figures, to appear in Proc. SPIE Astronomical Telescopes and Instrumentation, 2020
Published: 2020
Full Text: View/download PDF

5. The Performance of the Athena X-ray Integral Field Unit at Very High Count Rates

Author: L. Piro, Jörn Wilms, Thomas Dauser, P. Peille, Didier Barret, R. den Hartog, Christian Kirsch, Edoardo Cucchetti, and J. W. den Herder
Subjects: Physics, Photon, Pixel, business.industry, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, chemistry.chemical_element, Condensed Matter Physics, 01 natural sciences, Atomic and Molecular Physics, and Optics, 010309 optics, Full width at half maximum, Optics, Cardinal point, chemistry, 0103 physical sciences, Thermal, General Materials Science, Transition edge sensor, Beryllium, 010306 general physics, business
Abstract: The Athena X-ray Integral Field Unit (X-IFU) will operate at 90 mK a hexagonal matrix of 3840 Transition Edge Sensor pixels providing spatially resolved high-resolution spectroscopy (2.5 eV FWHM up to 7 keV) between 0.2 and 12 keV. During the observation of very bright X-ray sources, the X-IFU detectors will receive high photon rates going up to several tens of counts per second per pixel and hundreds per readout channel, well above the normal operating mode of the instrument. In this paper, we investigate through detailed end-to-end simulations the performance achieved by the X-IFU at the highest count rates. Special care is notably taken to model and characterize pulse processing limitations, readout-chain saturation effects, as well as the non-Gaussian degradation of the energy redistribution from crosstalk at the focal plane level (both thermal and electrical). Overall, we show that the instrument performance should safely exceed the scientific requirements, and in particular that more than 50 % throughput at 1 Crab in the 5–8 keV band can be achieved with better than 10 eV average resolution with the use of a Beryllium filter, enabling breakthrough science in the field of bright sources.
Published: 2018
Full Text: View/download PDF

6. Constraining the origin and models of chemical enrichment in galaxy clusters using the Athena X-IFU

Author: Klaus Dolag, L. Tornatore, Nicolas Clerc, Didier Barret, F. Pajot, Stefano Ettori, Etienne Pointecouteau, P. Peille, V. Biffi, Esra Bulbul, Edoardo Cucchetti, E. Rasia, Thomas Dauser, Jörn Wilms, Stefano Borgani, Mauro Roncarelli, F. Mernier, Massimo Gaspari, Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Centre National d'Études Spatiales [Toulouse] (CNES), Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS), INAF - Osservatorio Astronomico di Trieste (OAT), Istituto Nazionale di Astrofisica (INAF), Mernier, F., Cucchetti, E., Tornatore, L., Biffi, V., Pointecouteau, E., Clerc, N., Peille, P., Rasia, E., Barret, D., Borgani, S., Bulbul, E., Dauser, T., Dolag, K., Ettori, S., Gaspari, M., Pajot, F., Roncarelli, M., and Wilms, J.
Subjects: Initial mass function, galaxies: clusters: intracluster medium, Metallicity, Astrophysics::High Energy Astrophysical Phenomena, general [Supernovae], FOS: Physical sciences, clusters: intracluster medium [Galaxies], Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, abundance [Galaxies], 7. Clean energy, 01 natural sciences, methods: numerical, supernovae: general, Observatory, Intracluster medium, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, 010303 astronomy & astrophysics, ComputingMilieux_MISCELLANEOUS, Galaxy cluster, Astrophysics::Galaxy Astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, numerical [Methods], [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Astronomy and Astrophysics, galaxies: fundamental parameters, Astrophysics - Astrophysics of Galaxies, Redshift, Supernova, Stars, Galaxies: abundances, Galaxies: clusters: intracluster medium, Galaxies: fundamental parameters, Methods: numerical, Supernovae: general, X-rays: galaxies: clusters, 13. Climate action, Space and Planetary Science, fundamental parameter [Galaxies], Astrophysics of Galaxies (astro-ph.GA), galaxies: abundances, galaxies: clusters [X-rays], Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract: The chemical enrichment of the Universe at all scales is related to stellar winds and explosive supernovae phenomena. Metals produced by stars and later spread at the mega-parsec scale through the intra-cluster medium (ICM) become a fossil record of the chemical enrichment of the Universe and of the dynamical and feedback mechanisms determining their circulation. As demonstrated by the results of the soft X-ray spectrometer onboard Hitomi, high resolution X-ray spectroscopy is the path to to differentiate among the models that consider different metal production mechanisms, predict the outcoming yields, and are function of the nature, mass, and/or initial metallicity of their stellar progenitor. Transformational results shall be achieved through improvements in the energy resolution and effective area of X-ray observatories to detect rare metals (e.g. Na, Al) and constrain yet uncertain abundances (e.g. C, Ne, Ca, Ni). The X-ray Integral Field Unit (X-IFU) instrument onboard the next-generation European X-ray observatory Athena is expected to deliver such breakthroughs. Starting from 100 ks of synthetic observations of 12 abundance ratios in the ICM of four simulated clusters, we demonstrate that the X-IFU will be capable of recovering the input chemical enrichment models at both low ($z = 0.1$) and high ($z = 1$) redshifts, while statistically excluding more than 99.5% of all the other tested combinations of models. By fixing the enrichment models which provide the best fit to the simulated data, we also show that the X-IFU will constrain the slope of the stellar initial mass function within $\sim$12%. These constraints will be key ingredients in our understanding of the chemical enrichment of the Universe and its evolution., 17 pages, 6 figures, accepted for publication in A&A
Published: 2020
Full Text: View/download PDF

7. Towards mapping turbulence in the intra-cluster medium -- II. Measurement uncertainties in the estimation of structure functions

Author: Etienne Pointecouteau, N. Clerc, Edoardo Cucchetti, P. Peille, F. Pajot, Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Centre National d'Études Spatiales [Toulouse] (CNES), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), and Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), galaxies: clusters: intracluster medium, 010504 meteorology & atmospheric sciences, Field (physics), FOS: Physical sciences, Astrophysics, 01 natural sciences, methods: numerical, Total variation, 0103 physical sciences, Sample variance, Statistical physics, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation and Methods for Astrophysics (astro-ph.IM), 010303 astronomy & astrophysics, Galaxy cluster, 0105 earth and related environmental sciences, Physics, Turbulence, turbulence, Astronomy and Astrophysics, line: profiles, Variance (accounting), Cosmic variance, Space and Planetary Science, galaxies: clusters: general, techniques: imaging spectroscopy, Line (geometry), [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: X-ray observations of the hot gas filling the intra-cluster medium provide a wealth of information on the dynamics of clusters of galaxies. The global equilibrium of the ICM is believed to be partially ensured by non-thermal pressure support, notably the dissipation of energy through turbulent motions. Accurate mapping of turbulence using X-ray emission lines is challenging due to the lack of spatially-resolved spectroscopy. Only future instruments such as the X-ray Integral Field Unit (X-IFU) on Athena will have the spatial and spectral resolution to quantitatively investigate the ICM turbulence at all scales. Powerful diagnostics for these studies are line shift and the line broadening maps, and the second-order structure function. When estimating these quantities, instruments will be limited by uncertainties of their measurements, and by the sample variance (aka cosmic variance) of the observation. We extend here the formalism started in our companion paper I to include the effect of statistical uncertainties in the estimation of these line diagnostics, in particular for structure functions. We demonstrate that statistics contribute to the total variance through different terms, which depend on the geometry of the detector, the spatial binning and the nature of the turbulent field. These terms are important when probing the small scales of the turbulence. An application of these equations is performed for the X-IFU, using synthetic turbulent velocity maps of a Coma-like cluster of galaxies. Results are in excellent agreement with the formulas both for the structure function estimation (, 14 pages, 5 figures, 1 appendix. Accepted for publication in Astronomy & Astrophysics
Published: 2019
Full Text: View/download PDF

8. SIXTE: a generic X-ray instrument simulation toolkit

Author: Edoardo Cucchetti, Sebastian Falkner, T. Brand, Maximilian Lorenz, Jörn Wilms, Philippe Peille, Christian Schmid, Randall K. Smith, M. Oertel, Thomas Dauser, Christian Kirsch, Centre National d'Études Spatiales [Toulouse] (CNES), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), and Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Physics, instrumentation: detectors, X-ray, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, X-rays: general, 01 natural sciences, Computational physics, methods: numerical, Space and Planetary Science, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, 010306 general physics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Instrumentation and Methods for Astrophysics (astro-ph.IM), 010303 astronomy & astrophysics
Abstract: We give an overview of the SImulation of X-ray TElescopes (SIXTE) software package, a generic, mission-independent Monte Carlo simulation toolkit for X-ray astronomical instrumentation. The package is based on a modular approach for the source definition, the description of the optics, and the detector type such that new missions can be easily implemented. The targets to be simulated are stored in a flexible input format called SIMPUT. Based on this source definition, a sample of photons is produced and then propagated through the optics. In order to model the detection process, the software toolkit contains modules for various detector types, ranging from proportional counter and Si-based detectors, to more complex descriptions like transition edge sensor (TES) devices. The implementation of characteristic detector effects and a detailed modeling of the read-out process allow for representative simulations and therefore enable the analysis of characteristic features, such as for example pile-up, and their impact on observations. We present an overview of the implementation of SIXTE from the input source, the imaging, and the detection process, highlighting the modular approach taken by the SIXTE software package. In order to demonstrate the capabilities of the simulation software, we present a selection of representative applications, including the all-sky survey of eROSITA and a study of pile-up effects comparing the currently operating XMM-Newton with the planned Athena-WFI instrument. A simulation of a galaxy cluster with the Athena- X-IFU shows the capability of SIXTE to predict the expected performance of an observation for a complex source with a spatially varying spectrum and our current knowledge of the future instrument., Comment: accepted for publication in A&A
Published: 2019
Full Text: View/download PDF

9. Towards mapping turbulence in the intra-cluster medium -- I. Sample variance in spatially-resolved X-ray line diagnostics

Author: Etienne Pointecouteau, Philippe Peille, N. Clerc, Edoardo Cucchetti, Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Centre National d'Études Spatiales [Toulouse] (CNES), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), and Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), galaxies: clusters: intracluster medium, Field (physics), FOS: Physical sciences, Context (language use), Astrophysics, 01 natural sciences, methods: analytical, 0103 physical sciences, Range (statistics), Sample variance, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Instrumentation and Methods for Astrophysics (astro-ph.IM), 010303 astronomy & astrophysics, Fourier series, Galaxy cluster, Physics, Turbulence, Computer Science::Information Retrieval, turbulence, Centroid, line: profiles, Astronomy and Astrophysics, Computational physics, techniques: imaging spectroscopy, Space and Planetary Science, X-rays: galaxies: clusters, Astrophysics - Instrumentation and Methods for Astrophysics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: X-ray observations of galaxy clusters provide insights on the nature of gaseous turbulent motions, their physical scales and on the fundamental processes they are related to. Spatially-resolved, high-resolution spectral measurements of X-ray emission lines provide diagnostics on the nature of turbulent motions in emitting atmospheres. Since they are acting on scales comparable to the size of the objects, the uncertainty on these physical parameters is limited by the number of observational measurements, through sample variance. We propose a different and complementary approach for the computation of sample variance to repeating numerical simulations (i.e. Monte-Carlo sampling) by introducing new analytical developments for lines diagnosis. We consider the model of a "turbulent gas cloud", consisting in isotropic and uniform turbulence described by a universal Kolmogorov power-spectrum with random amplitudes and phases in an optically thin medium. Following a simple prescription for the 4-term correlation of Fourier coefficients, we derive generic expressions for the sample mean and variance of line centroid shift, line broadening and projected velocity structure function. We perform a numerical validation based on Monte-Carlo simulations for two popular models of gas emissivity based on the beta-model. Generic expressions for the sample variance of line centroid shifts and broadening in arbitrary apertures are derived and match the simulations within their range of applicability. Generic expressions for the mean and variance of the structure function are provided and verified against simulations. An application to the Athena/X-IFU and XRISM/Resolve instruments forecasts the potential of sensitive, spatially-resolved spectroscopy to probe the inertial range of turbulent velocity cascades in a Coma-like galaxy cluster., 15 pages, 28 figures, 8 appendices. Accepted for publication in Astronomy & Astrophysics
Published: 2019
Full Text: View/download PDF

10. Multi-parameter Nonlinear Gain Correction of X-ray Transition Edge Sensors for the X-ray Integral Field Unit

Author: F. Pajot, Edoardo Cucchetti, P. Peille, Frederick S. Porter, Megan E. Eckart, Etienne Pointecouteau, Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), and Centre National d'Études Spatiales [Toulouse] (CNES)
Subjects: Physics, Scale (ratio), Pixel, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], business.industry, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, 02 engineering and technology, Heat sink, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Atomic and Molecular Physics, and Optics, 010309 optics, Optics, Thermal radiation, 0103 physical sciences, Calibration, Linear amplifier, General Materials Science, 0210 nano-technology, business, Energy (signal processing), ComputingMilieux_MISCELLANEOUS
Abstract: With its array of 3840 Transition Edge Sensors (TESs), the Athena X-ray Integral Field Unit (X-IFU) will provide spatially resolved high-resolution spectroscopy (2.5 eV up to 7 keV) from 0.2 to 12 keV, with an absolute energy scale accuracy of 0.4 eV. Slight changes in the TES operating environment can cause significant variations in its energy response function, which may result in systematic errors in the absolute energy scale. We plan to monitor such changes at pixel level via onboard X-ray calibration sources and correct the energy scale accordingly using a linear or quadratic interpolation of gain curves obtained during ground calibration. However, this may not be sufficient to meet the 0.4 eV accuracy required for the X-IFU. In this contribution, we introduce a new two-parameter gain correction technique, based on both the pulse-height estimate of a fiducial line and the baseline value of the pixels. Using gain functions that simulate ground calibration data, we show that this technique can accurately correct deviations in detector gain due to changes in TES operating conditions such as heat sink temperature, bias voltage, thermal radiation loading and linear amplifier gain. We also address potential optimisations of the onboard calibration source and compare the performance of this new technique with those previously used.
Published: 2018
Full Text: View/download PDF

11. Measuring turbulence and gas motions in galaxy clusters via synthetic Athena X-IFU observations

Author: Edoardo Cucchetti, N. Clerc, Etienne Pointecouteau, Massimo Gaspari, Stefano Ettori, Elena Rasia, Fabrizio Brighenti, Esra Bulbul, Veronica Biffi, Mauro Roncarelli, Centre d'étude spatiale des rayonnements (CESR), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées, Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Institut de recherche en astrophysique et planétologie (IRAP), Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Roncarelli, M., Gaspari, M., Ettori, S., Biffi, V., Brighenti, F., Bulbul, E., Clerc, N., Cucchetti, E., Pointecouteau, E., Rasia, E., Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), and Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), galaxies: clusters: intracluster medium, FOS: Physical sciences, Context (language use), Astrophysics, Kinematics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, methods: numerical, Intracluster medium, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Emission spectrum, 010306 general physics, Instrumentation and Methods for Astrophysics (astro-ph.IM), 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Galaxy cluster, ComputingMilieux_MISCELLANEOUS, Physical quantity, Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], Turbulence, Velocity dispersion, Astronomy and Astrophysics, X-rays: galaxies: cluster, Computational physics, galaxies: clusters: general, techniques: imaging spectroscopy, Space and Planetary Science, X-rays: galaxies: clusters, intergalactic medium, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The X-ray Integral Field Unit (X-IFU) that will be on board the Athena telescope will provide an unprecedented view of the intracluster medium (ICM) kinematics through the observation of gas velocity, $v$, and velocity dispersion, $w$, via centroid-shift and broadening of emission lines, respectively. The improvement of data quality and quantity requires an assessment of the systematics associated with this new data analysis, namely biases, statistical and systematic errors, and possible correlations between the different measured quantities. We have developed an end-to-end X-IFU simulator that mimics a full X-ray spectral fitting analysis on a set of mock event lists, obtained using SIXTE. We have applied it to three hydrodynamical simulations of a Coma-like cluster that include the injection of turbulence. This allowed us to assess the ability of X-IFU to map five physical quantities in the cluster core: emission measure, temperature, metal abundance, velocity and velocity dispersion. Finally, starting from our measurements maps, we computed the 2D structure function (SF) of emission measure fluctuations, $v$ and $w$ and compared them with those derived directly from the simulations. All quantities match with the input projected values without bias; the systematic errors were below 5%, except for velocity dispersion whose error reaches about 15%. Moreover, all measurements prove to be statistically independent, indicating the robustness of the fitting method. Most importantly, we recover the slope of the SFs in the inertial regime with excellent accuracy, but we observe a systematic excess in the normalization of both SF$_v$ and SF$_w$ ascribed to the simplistic assumption of uniform and (bi-)Gaussian measurement errors. Our work highlights the excellent capabilities of Athena X-IFU in probing the thermodynamic and kinematic properties of the ICM. (abridged), 14 pages, 7 figures, 2 tables. Accepted for publication in Astronomy and Astrophysics. v3: added missing references
Published: 2018
Full Text: View/download PDF

12. Energy scale calibration and drift correction of the X-IFU

Author: Philippe Peille, Frederick S. Porter, Edoardo Cucchetti, Caroline A. Kilbourne, Etienne Pointecouteau, Megan E. Eckart, François Pajot, Maurice A. Leutenegger, Cor P. de Vries, Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Lawrence Livermore National Laboratory (LLNL), Centre National d'Études Spatiales [Toulouse] (CNES), and NASA Goddard Space Flight Center (GSFC)
Subjects: Physics, Scale (ratio), Field (physics), [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Detector, FOS: Physical sciences, 01 natural sciences, Computational physics, 0103 physical sciences, Calibration, 010306 general physics, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Parametrization, Energy (signal processing), ComputingMilieux_MISCELLANEOUS, Interpolation, Line (formation)
Abstract: The Athena X-Ray Integral Field Unit (X-IFU) will provide spatially resolved high-resolution spectroscopy (2.5 eV FWHM up to 7 keV) over the 0.2 to 12 keV energy band. It will comprise an array of 3840 superconducting Transition Edge Sensors (TESs) operated at 90 mK, with an absolute energy scale accuracy of 0.4 eV. Slight changes in the TES operating environment can cause significant variations in its energy response function, which may result in degradation of the detector's energy resolution, and eventually in systematic errors in the absolute energy scale if not properly corrected. These changes will be monitored via an onboard Modulated X-ray Source (MXS) and the energy scale will be corrected accordingly using a multi-parameter interpolation of gain curves obtained during ground calibration. Assuming realistic MXS configurations and using the instrument end-to-end simulator SIXTE, we investigate here both statistical and systematic effects on the X-IFU energy scale, occurring either during ground measurements or in-flight. The corresponding impacts on the energy resolution and means of accounting for these errors are also addressed. We notably demonstrate that a multi-parameter gain correction, using both the pulse-height estimate and the baseline of a pulse, can accurately recover systematic effects on the gain due to realistic changes in TES operating conditions within 0.4 eV. Optimisations of this technique with respect to the MXS line configuration and correction time, as well as to the energy scale parametrization are also show promising results to improve the accuracy of the correction., 11 pages, 4 figures, SPIE proceeding Austin 2018
Published: 2018
Full Text: View/download PDF

13. Testing the X-IFU calibration requirements: an example for quantum efficiency and energy resolution

Author: Gabriele Betancourt-Martinez, Simon R. Bandler, Didier Barret, Stephen J. Smith, Marco Barbera, Etienne Pointecouteau, Megan E. Eckart, François Pajot, Edoardo Cucchetti, Massimo Cappi, Philippe Peille, Caroline A. Kilbourne, Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Centre National d'Études Spatiales [Toulouse] (CNES), Lawrence Livermore National Laboratory (LLNL), Cucchetti, Edoardo, Pajot, Françoi, Pointecouteau, Etienne, Peille, Philippe, Betancourt-Martinez, Gabriele, Smith, Stephen J., Barbera, Marco, Eckart, Megan E., Bandler, Simon R., Kilbourne, Caroline A., Cappi, Massimo, and Barret, Didier
Subjects: Field (physics), FOS: Physical sciences, Condensed Matter Physic, 01 natural sciences, 7. Clean energy, X-ray, Settore FIS/05 - Astronomia E Astrofisica, Band-pass filter, 0103 physical sciences, Calibration, Athena, Electrical and Electronic Engineering, 010306 general physics, 010303 astronomy & astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), ComputingMilieux_MISCELLANEOUS, Physics, X-IFU, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], Electronic, Optical and Magnetic Material, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Computer Science Applications1707 Computer Vision and Pattern Recognition, Filter (signal processing), Computational physics, Applied Mathematic, Performance verification, Transmission (telecommunications), Quantum efficiency, Astrophysics - Instrumentation and Methods for Astrophysics, Energy (signal processing)
Abstract: With its array of 3840 Transition Edge Sensors (TESs) operated at 90 mK, the X-Ray Integral Field Unit (X-IFU) on board the ESA L2 mission Athena will provide spatially resolved high-resolution spectroscopy (2.5 eV FWHM up to 7 keV) over the 0.2 to 12 keV bandpass. The in-flight performance of the X-IFU will be strongly affected by the calibration of the instrument. Uncertainties in the knowledge of the overall system, from the filter transmission to the energy scale, may introduce systematic errors in the data, which could potentially compromise science objectives - notably those involving line characterisation e.g. turbulence velocity measurements - if not properly accounted for. Defining and validating calibration requirements is therefore of paramount importance. In this paper, we put forward a simulation tool based on the most up-to-date configurations of the various subsystems (e.g. filters, detector absorbers) which allows us to estimate systematic errors related to uncertainties in the instrumental response. Notably, the effect of uncertainties in the energy resolution and of the instrumental quantum efficiency on X-IFU observations is assessed, by taking as a test case the measurements of the iron K complex in the hot gas surrounding clusters of galaxies. In-flight and ground calibration of the energy resolution and the quantum efficiency is also addressed. We demonstrate that provided an accurate calibration of the instrument, such effects should be low in both cases with respect to statistics during observations., Comment: 9 pages, 4 figures, SPIE proceeding Austin 2018
Published: 2018
Full Text: View/download PDF

14. Reproducibility and monitoring of the instrumental particle background for the X-Ray Integral Field Unit

Author: Gabriel W. Pratt, Silvano Molendi, Etienne Pointecouteau, Luigi Piro, Simone Lotti, Philippe Peille, Edoardo Cucchetti, Didier Barret, Claudio Macculi, François Pajot, Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Centre National d'Études Spatiales [Toulouse] (CNES), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS), Max-Planck-Institut für Extraterrestrische Physik (MPE), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), ITA, Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Field (physics), Monitoring, Astrophysics::High Energy Astrophysical Phenomena, Imaging spectrometer, FOS: Physical sciences, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Particle background, 010309 optics, Optics, Observatory, 0103 physical sciences, Athena, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Spectral resolution, 010303 astronomy & astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Galaxy cluster, ComputingMilieux_MISCELLANEOUS, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Reproducibility, X-IFU, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], business.industry, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Anti-coincidence, business, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract: The X-ray Integral Field Unit (X-IFU) is the cryogenic imaging spectrometer on board the future X-ray observatory \textsl{Athena}. With a hexagonal array of 3840 AC-biased Transition Edge Sensors (TES), it will provide narrow-field observations (5$^{\prime}$ equivalent diameter) with unprecedented high spectral resolution (2.5 eV up to 7 keV) over the 0.2 - 12 keV bandpass. Throughout its observations, the X-IFU will face various sources of X-ray background. Specifically, the so-called Non-X-ray Background (NXB) caused by the interaction of high-energy cosmic rays with the instrument, may lead to a degradation of its sensitivity in the observation of faint extended sources (e.g. galaxy clusters outskirts). To limit this effect, a cryogenic anti-coincidence detector (CryoAC) will be placed below the detector plane to lower the NXB level down to the required level of $5 \times 10^{-3}$ cts/s/cm$^{2}$/keV over 2 - 10 keV. In this contribution, we investigate ways to accurately monitor the NXB and ensure the highest reproducibility in-flight. Using the limiting science case of the background-dominated observation of galaxy clusters outskirts, we demonstrate that a reproducibility of 2\% on the absolute knowledge of the background is required to perform driving science objectives, such as measuring abundances and turbulence in the outskirts. Monitoring of the NXB in-flight through closed observations, the detector's CryoAC or the companion instrument (Wide Field Imager) will be used to meet this requirement., 11 pages, 4 figures, SPIE proceeding Austin 2018
Published: 2018
Full Text: View/download PDF

15. Athena X-IFU synthetic observations of galaxy clusters to probe the chemical enrichment of the Universe

Author: Jörn Wilms, Thomas Dauser, N. Clerc, Elena Rasia, Didier Barret, Esra Bulbul, Veronica Biffi, P. Peille, Stefano Ettori, Etienne Pointecouteau, Klaus Dolag, Luca Tornatore, Mauro Roncarelli, Stefano Borgani, F. Pajot, Massimo Gaspari, Edoardo Cucchetti, Cucchetti, E., Pointecouteau, E., Peille, P., Clerc, N., Rasia, E., Biffi, V., Borgani, S., Tornatore, L., Dolag, K., Roncarelli, M., Gaspari, M., Ettori, S., Bulbul, E., Dauser, T., Wilms, J., Pajot, F., Barret, D., Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Centre National d'Études Spatiales [Toulouse] (CNES), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), INAF - Osservatorio Astronomico di Trieste (OAT), Istituto Nazionale di Astrofisica (INAF), Centre d'étude spatiale des rayonnements (CESR), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Laboratoire d'Astrophysique de Marseille (LAM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), Universität Erlangen-Nürnberg - Erlangen, Erlangen Centre for Astroparticle Physics (ECAP), Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées, Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), and Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)
Subjects: galaxies: clusters: intracluster medium, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Field (physics), galaxies: abundances, galaxies: fundamental parameters, methods: numerical, techniques: imaging spectroscopy, X-rays: galaxies: clusters, Astronomy and Astrophysics, Space and Planetary Science, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Observatory, 0103 physical sciences, Spectroscopy, 010303 astronomy & astrophysics, Galaxy cluster, ComputingMilieux_MISCELLANEOUS, Astrophysics::Galaxy Astrophysics, Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Spatially resolved, fundamental parameter [galaxies], numerical [methods], Radius, Astronomy and Astrophysic, imaging spectroscopy [techniques], Astrophysics - Astrophysics of Galaxies, Redshift, galaxies: cluster [X-rays], clusters: intracluster medium [galaxies], Astrophysics of Galaxies (astro-ph.GA), abundance [galaxies], [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Cosmic time, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: Answers to the metal production of the Universe can be found in galaxy clusters, notably within their Intra-Cluster Medium (ICM). The X-ray Integral Field Unit (X-IFU) on board the next-generation European X-ray observatory Athena (2030s) will provide the necessary leap forward in spatially-resolved spectroscopy required to disentangle the intricate mechanisms responsible for this chemical enrichment. In this paper, we investigate the future capabilities of the X-IFU in probing the hot gas within galaxy clusters. From a test sample of four clusters extracted from cosmological hydrodynamical simulations, we present comprehensive synthetic observations of these clusters at different redshifts (up to z = 2) and within the scaled radius R500 performed using the instrument simulator SIXTE. Through 100 ks exposures, we demonstrate that the X-IFU will provide spatially-resolved mapping of the ICM physical properties with little to no biases (, 22 pages, 15 figures
Published: 2018
Full Text: View/download PDF

16. Simulating X-ray observations of galaxy clusters with the X-ray Integral Field Unit onboard the Athena mission

Author: Didier Barret, Jörn Wilms, Klaus Dolag, Elena Rasia, Etienne Pointecouteau, Nicolas Clerc, P. Peille, Veronica Biffi, Edoardo Cucchetti, François Pajot, Stefano Borgani, Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Centre National d'Études Spatiales [Toulouse] (CNES), INAF - Osservatorio Astronomico di Trieste (OAT), Istituto Nazionale di Astrofisica (INAF), Universitats-Sternwarte [München], Ludwig-Maximilians-Universität München (LMU), Editor(s): Jan-Willem A. den Herder, Shouleh Nikzad, Kazuhiro Nakazawa, Cucchetti, E., Pointecouteau, E., Peille, P., Clerc, N., Rasia, E., Biffi, V., Borgani, S., Dolag, K., Wilms, J., Pajot, F., Barret, D., Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), and Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)
Subjects: galaxy cluster, chemical enrichment, media_common.quotation_subject, Measure (physics), Imaging spectrometer, Field of view, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, 7. Clean energy, 01 natural sciences, 010309 optics, 0103 physical sciences, galaxy clusters, Athena, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Galaxy cluster, ComputingMilieux_MISCELLANEOUS, media_common, Physics, X-IFU, Line-of-sight, Spectrometer, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], Astrophysics::Instrumentation and Methods for Astrophysics, Universe, Redshift, End-To-End simulations, 13. Climate action, End-To-End simulation
Abstract: The X-ray Integral Field Unit (X-IFU) is the cryogenic imaging spectrometer onboard the ESA L2 mission Athena. With its array of almost 3840 superconducting Transition Edge Sensors micro-calorimeters, the X-IFU will provide spatially resolved (5" over the field of view) high-resolution spectroscopy (2.5 eV FWHM up to 7 keV) in the 0.2-12 keV energy band. These transformational capabilities will allow the X-IFU to probe the Hot and Energetic Universe, and notably measure the physical properties of large-scale structures with unprecedented accuracy. Starting from numerically-simulated massive (1014 Mo) galaxy clusters at different steps of their evolution, we investigate the capabilities of the X-IFU in recovering chemical abundances, redshift and gas temperature spatial distributions across time, making use of full field-of-view End-To-End simulations of X-IFU observations. This work serve as feasibility study for the Chemical Enrichment of the Universe science objective. We show that using 100 ks observations, the X-IFU will provide an unprecedented spatially-accurate knowledge of the physics of the ICM (abundances, temperature, bulk-motion). We also demonstrate that challenges related to the data analysis of extended sources with very high-resolution spectrometers (e.g. binning, line of sight mixing, particle background) need to be thoroughly addressed to maximise the science of the instrument.
Published: 2018
Full Text: View/download PDF

17. 3D ion velocity distribution function measurement in an electric thruster using laser induced fluorescence tomography

Author: D. Packan, P. Q. Elias, J. Jarrige, Edoardo Cucchetti, F. Cannat, ONERA - The French Aerospace Lab [Palaiseau], and ONERA-Université Paris Saclay (COmUE)
Subjects: Ion beam, PROBLEME INVERSE, 01 natural sciences, 010305 fluids & plasmas, law.invention, Optics, Physics::Plasma Physics, Hall effect, law, TOMOGRAPHY, Ionization, 0103 physical sciences, TOMOGRAPHIE, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation, 010302 applied physics, Physics, Tomographic reconstruction, business.industry, SPECTRE FLUORESCENCE, PLASMA SHEATHS, Laser, FLUORESCENCE SPECTRA, Distribution function, LASER LINDUCED FLUORESCENCE, 13. Climate action, FLUORESCENCE INDUITE LASER, GAINE PLASMA, Tomography, business, INVERSE PROBLEMS, Beam (structure)
Abstract: International audience; Measuring the full ion velocity distribution function (IVDF) by non-intrusive techniques can improve our understanding of the ionization processes and beam dynamics at work in electric thrusters. In this paper, a Laser-Induced Fluorescence (LIF) tomographic reconstruction technique is applied to the measurement of the IVDF in the plume of a miniature Hall effect thruster. A setup is developed to move the laser axis along two rotation axes around the measurement volume. The fluorescence spectra taken from different viewing angles are combined using a tomographic reconstruction algorithm to build the complete 3D (in phase space) time-averaged distribution function. For the first time, this technique is used in the plume of a miniature Hall effect thruster to measure the full distribution function of the xenon ions. Two examples of reconstructions are provided, in front of the thruster nose-cone and in front of the anode channel. The reconstruction reveals the features of the ion beam, in particular on the thruster axis where a toroidal distribution function is observed. These findings are consistent with the thruster shape and operation. This technique, which can be used with other LIF schemes, could be helpful in revealing the details of the ion production regions and the beam dynamics. Using a more powerful laser source, the current implementation of the technique could be improved to reduce the measurement time and also to reconstruct the temporal evolution of the distribution function.
Published: 2017
Full Text: View/download PDF

18. The Athena X-ray Integral Field Unit (X-IFU)

Author: Mauro Dadina, Enrico Bozzo, Jeremie Hassin, Jacco Vink, Gonzalo Campos Garrido, Isabelle Hernandez, Jan-Willem den Herder, Natalie A. Webb, Yaël Nazé, Roland den Hartog, Bert-Joost van Leeuwen, Marco Barbera, Beatriz Cobo, Simone Lotti, Denis Schwander, Alice Pradines, Fabrizio Nicastro, Hervé Geoffray, Andrea Goldwurm, Damien Prêle, Etienne Pointecouteau, Stéphane Paltani, Agnieszka Janiuk, Jean-Michel Mesnager, Stephen J. Smith, Michel Le Du, María Teresa Ceballos, Jean-Marc Biffi, Kazuhisa Mitsuda, Alexis Finoguenov, Graziella Branduardi-Raymont, Luca Valenziano, Ivan Charles, Peter G. Jonker, Didier Barret, Gabriel W. Pratt, Keisuke Shinozaki, François Pajot, Juhani Huovelin, Noriko Y. Yamasaki, Thomas Dauser, L. Ravera, Kevin R. Boyce, J. M. Duval, Mariano Mendez, Silvano Molendi, Jelle de Plaa, Joop Schaye, Christophe Etcheverry, Antoine Clénet, Jean-Charles Damery, Xavier Barcons, Frederick S. Porter, Richard L. Kelley, Thein Lam Trong, Irwin Maussang, Pierre Jamotton, Luigi Piro, Françoise Delcelier-Douchin, Alexis Paillet, Brian Jackson, Henk van Weers, Anne Decourchelle, Flavio Gatti, Philippe Peille, Fabrizio Fiore, Simon R. Bandler, Johan Panh, Salvatore Sciortino, Gregor Rauw, Agata Różańska, Caroline A. Kilbourne, Jerome Moueza, Jose Miguel Torrejon, Gilles Hervet, Jon M. Miller, Joern Wilms, Christophe Daniel, Yasushi Fukazawa, Bruno Vella, Michael J. DiPirro, Piotr Orleanski, Claudio Macculi, Laure Luno, J. Miguel Mas-Hesse, C. Panem, Edoardo Cucchetti, Jérôme André, Emilie Gloaguen, T. Brand, Etienne Renotte, Ministerio de Economía y Competitividad (España), European Commission, Astronomy, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Herder, J.-W. den, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie ( APC - UMR 7164 ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Observatoire de Paris-Université Paris Diderot - Paris 7 ( UPD7 ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ), Gravitation and Astroparticle Physics Amsterdam, API (FNWI), Barret, D., Lam Trong, T., den Herder, J., Piro, L., Barcons, X., Huovelin, J., Kelley, R., Mas-Hesse, J., Mitsuda, K., Paltani, S., Rauw, G., Rożanska, A., Wilms, J., Barbera, M., Bozzo, E., Ceballos, M., Charles, I., Decourchelle, A., den Hartog, R., Duval, J., Fiore, F., Gatti, F., Goldwurm, A., Jackson, B., Jonker, P., Kilbourne, C., Macculi, C., Mendez, M., Molendi, S., Orleanski, P., Pajot, F., Pointecouteau, E., Porter, F., Pratt, G., Prêle, D., Ravera, L., Renotte, E., Schaye, J., Shinozaki, K., Valenziano, L., Vink, J., Webb, N., Yamasaki, N., Delcelier-Douchin, F., Le Du, M., Mesnager, J., Pradines, A., Branduardi-Raymont, G., Dadina, M., Finoguenov, A., Fukazawa, Y., Janiuk, A., Miller, J., Nazé, Y., Nicastro, F., Sciortino, S., Torrejon, J., Geoffray, H., Hernandez, I., Luno, L., Peille, P., André, J., Daniel, C., Etcheverry, C., Gloaguen, E., Hassin, J., Hervet, G., Maussang, I., Moueza, J., Paillet, A., Vella, B., Campos Garrido, G., Damery, J., Panem, C., Panh, J., Bandler, S., Biffi, J., Boyce, K., Clénet, A., Dipirro, M., Jamotton, P., Lotti, S., Schwander, D., Smith, S., van Leeuwen, B., van Weers, H., Brand, T., Cobo, B., Dauser, T., de Plaa, J., and Cucchetti, E.
Subjects: Computer science, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Astronomy, Observatories, Field of view, Athena, Instrumentation, Space telescopes, X-ray Integral Field Unit, X-ray spectroscopy, Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Computer Science Applications1707 Computer Vision and Pattern Recognition, Applied Mathematics, Electrical and Electronic Engineering, 7. Clean energy, 01 natural sciences, law.invention, Settore FIS/05 - Astronomia E Astrofisica, law, Observatory, Athena, Instrumentation, Space telescopes, X-ray spectroscopy, X-ray Integral Field Unit, 010303 astronomy & astrophysics, [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Spectroscopy, High Energy Astrophysical Phenomena (astro-ph.HE), Equipment and services, X-ray, Proceedings of SPIE - the International Society for Optical Engineering, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, High energy astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Spectral resolution, FOS: Physical sciences, Minute of arc, Telescope, 0103 physical sciences, X-rays, Electronic, Optical and Magnetic Materials, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Remote sensing, Pixel, Astrophysics - Astrophysics of Galaxies, Astrophysics of Galaxies (astro-ph.GA), [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Telescopes
Abstract: Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom., X-IFU: et al., The X-ray Integral Field Unit (X-IFU) on board the Advanced Telescope for High-ENergy Astrophysics (Athena) will provide spatially resolved high-resolution X-ray spectroscopy from 0.2 to 12 keV, with ~ 5" pixels over a field of view of 5 arc minute equivalent diameter and a spectral resolution of 2.5 eV up to 7 keV. In this paper, we first review the core scientific objectives of Athena, driving the main performance parameters of the X-IFU, namely the spectral resolution, the field of view, the effective area, the count rate capabilities, the instrumental background. We also illustrate the breakthrough potential of the X-IFU for some observatory science goals. Then we brie y describe the X-IFU design as defined at the time of the mission consolidation review concluded in May 2016, and report on its predicted performance. Finally, we discuss some options to improve the instrument performance while not increasing its complexity and resource demands (e.g. count rate capability, spectral resolution)., We acknowledge support from the Athena Science Study Team, the Athena Working Group Chairs, the Athena Topical Panel Chairs and the Topical Panel members in strengthening the X-IFU top level performance requirements. Particular thanks go to: E. Rasia, V. Biffi, S. Borgani and K. Dolag for providing cosmological hydrodynamic simulations of a cluster used to produce simulation of X-IFU observation presented in Fig. 2; P.T. O'Brien for assistance with Sect. 2.2.1, A.C. Fabian and C. Pinto for providing inputs for Figure 1. We also thank the ESA project team, and in particular Mark Ayre and Ivo Ferreira, for their work on the assessment of the ToO efficiency requirement. The Italian contribution to X-IFU is supported through the ASI contract n. 2015-046-R.0. XB, MTC and BC acknowledge nancial support by MINECO through grant ESP2014-53672-C3-1-P. A.R., P.O, and A.J. were supported by Polish NSC grants: 2015/17/B/ST9/03422 and 2015/18/M/ST9/00541. GR, ER, YN, and PJ acknowledges support by FNRS and Prodex (Belspo). This work was supported by the French Space Agency (CNES).
Full Text: View/download PDF

Catalog

Books, media, physical & digital resources

See catalog results

Searchworks

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources

Refine your results

18 results on '"Edoardo Cucchetti"'

1. Image Quality of Spectral Filter Arrays for Planetary Rover Applications: From Demosaicing to Color Correction.

2. Hue-specific Color Correction for Raw-RGB Images.

3. The Athena X-ray Integral Field Unit: a consolidated design for the system requirement review of the preliminary definition phase

4. A test platform for the detection and readout chain for the Athena X-IFU

5. The Performance of the Athena X-ray Integral Field Unit at Very High Count Rates

6. Constraining the origin and models of chemical enrichment in galaxy clusters using the Athena X-IFU

7. Towards mapping turbulence in the intra-cluster medium -- II. Measurement uncertainties in the estimation of structure functions

8. SIXTE: a generic X-ray instrument simulation toolkit

9. Towards mapping turbulence in the intra-cluster medium -- I. Sample variance in spatially-resolved X-ray line diagnostics

10. Multi-parameter Nonlinear Gain Correction of X-ray Transition Edge Sensors for the X-ray Integral Field Unit

11. Measuring turbulence and gas motions in galaxy clusters via synthetic Athena X-IFU observations

12. Energy scale calibration and drift correction of the X-IFU

13. Testing the X-IFU calibration requirements: an example for quantum efficiency and energy resolution

14. Reproducibility and monitoring of the instrumental particle background for the X-Ray Integral Field Unit

15. Athena X-IFU synthetic observations of galaxy clusters to probe the chemical enrichment of the Universe

16. Simulating X-ray observations of galaxy clusters with the X-ray Integral Field Unit onboard the Athena mission

17. 3D ion velocity distribution function measurement in an electric thruster using laser induced fluorescence tomography

18. The Athena X-ray Integral Field Unit (X-IFU)

Catalog

Searchworks

Select search scope, currently: Articles Catalog books, media & more in Jio Institute collections Articles journal articles & other e-resources

Search

Search Constraints

Refine your results

Search Limiters

Topic

Publication Year Range

Language

Publication Type

Journal

Database

Publisher

18 results on '"Edoardo Cucchetti"'

Search Results

Catalog

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources