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1. Gammapy: A Python package for gamma-ray astronomy

Author

Donath, Axel, Terrier, Régis, Remy, Quentin, Sinha, Atreyee, Nigro, Cosimo, Pintore, Fabio, Khélifi, Bruno, Olivera-Nieto, Laura, Ruiz, Jose Enrique, Brügge, Kai, Linhoff, Maximilian, Contreras, Jose Luis, Acero, Fabio, Aguasca-Cabot, Arnau, Berge, David, Bhattacharjee, Pooja, Buchner, Johannes, Boisson, Catherine, Fidalgo, David Carreto, Chen, Andrew, de Lavergne, Mathieu de Bony, Cardoso, José Vinícius de Miranda, Deil, Christoph, Füßling, Matthias, Funk, Stefan, Giunti, Luca, Hinton, Jim, Jouvin, Léa, King, Johannes, Lefaucheur, Julien, Lemoine-Goumard, Marianne, Lenain, Jean-Philippe, López-Coto, Rubén, Mohrmann, Lars, Morcuende, Daniel, Panny, Sebastian, Regeard, Maxime, Saha, Lab, Siejkowski, Hubert, Siemiginowska, Aneta, Sipőcz, Brigitta M., Unbehaun, Tim, van Eldik, Christopher, Vuillaume, Thomas, and Zanin, Roberta

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract

In this article, we present Gammapy, an open-source Python package for the analysis of astronomical $\gamma$-ray data, and illustrate the functionalities of its first long-term-support release, version 1.0. Built on the modern Python scientific ecosystem, Gammapy provides a uniform platform for reducing and modeling data from different $\gamma$-ray instruments for many analysis scenarios. Gammapy complies with several well-established data conventions in high-energy astrophysics, providing serialized data products that are interoperable with other software packages. Starting from event lists and instrument response functions, Gammapy provides functionalities to reduce these data by binning them in energy and sky coordinates. Several techniques for background estimation are implemented in the package to handle the residual hadronic background affecting $\gamma$-ray instruments. After the data are binned, the flux and morphology of one or more $\gamma$-ray sources can be estimated using Poisson maximum likelihood fitting and assuming a variety of spectral, temporal, and spatial models. Estimation of flux points, likelihood profiles, and light curves is also supported. After describing the structure of the package, we show, using publicly available $\gamma$-ray data, the capabilities of Gammapy in multiple traditional and novel $\gamma$-ray analysis scenarios, such as spectral and spectro-morphological modeling and estimations of a spectral energy distribution and a light curve. Its flexibility and power are displayed in a final multi-instrument example, where datasets from different instruments, at different stages of data reduction, are simultaneously fitted with an astrophysical flux model., Comment: 26 pages, 16 figures

Published
2023
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2. Establishing the MAGIC data legacy: adopting standardised data formats and open-source analysis tools

Author

Nigro, Cosimo

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The standardisation of gamma-ray astronomical data emerged in recent years as a necessity for the future generation of gamma-ray observatories. Nevertheless, adopting a common format for gamma-ray instruments can already benefit the current generation of gamma-ray instruments. As the end of their operations approaches, it provides a natural solution for the production of their data legacy. Additionally it eases data combination for multi-instrument analyses, thus enhancing the potential for scientific discovery with the wealth of data so far gathered. In this contribution, we present for the first time the effort to adapt the data of the MAGIC telescopes to the standardised format proposed by the Data Formats for Gamma-ray Astronomy initiative. We validate the data conversion by analysing the standardised data with the open-source software Gammapy and comparing the results obtained against those produced with the MAGIC proprietary software, MARS. For both samples chosen (Crab Nebula and Mrk421 observation), for all the scientific products extracted (spectra and light curves), we observe good agreement between the results of the two software., Comment: To be included in the Proceedings of 7th Heidelberg International Symposium on High-Energy Gamma-Ray Astronomy (Gamma2022)

Published
2023

3. Computing sky maps using the open-source package Gammapy and MAGIC data in a standardized format

Author

Mender, Simone, Linhoff, Lena, Hassan, Tarek, Nigro, Cosimo, and Elsässer, Dominik

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract

The open-source Python package Gammapy, developed for the high-level analysis of gamma-ray data, requires gamma-like event lists combined with the corresponding instrument response functions. For a morphological analysis, these data have to include a background acceptance model. Here we report an approach to generate such a model for the MAGIC telescope data, accounting for the azimuth and zenith dependencies of the MAGIC background acceptance. We validate this method using observations of the Crab Nebula with different offsets from the pointing position., Comment: 6 pages, 6 figures, Proceedings of the 7th Heidelberg International Symposium on High-Energy Gamma-Ray Astronomy, PoS(Gamma2022)215

Published
2023

4. Open-source Radiative Modelling Tools for Extragalactic VHE gamma-ray Sources

Author

Nigro, Cosimo and Tramacere, Andrea

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract

In this review, we discuss various open-source software for modelling the broad-band emission of extragalactic sources from radio up to the highest gamma ray energies. As we provide an overview of the different tools available, we discuss the physical processes such tools implement and detail the computations they can perform. We also examine their conformity with modern good software practices. After considering the currently available software as a first generation of open-source modelling tools, we outline some desirable characteristics for the next generation., Comment: Accepted for publication in Galaxies. Included in the special issue https://www.mdpi.com/journal/galaxies/special_issues/TeVAstronomy

Published
2022

5. Standardisation of Data Formats in Gamma-ray Astronomy

Author

Nigro, Cosimo and Hassan, Tarek

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract

The operation of the future Cherenkov Telescope Array (CTA), the next generation of Imaging Atmospheric Cherenkov Telescopes (IACTs), as an Open Observatory requires data products and analysis tools to be accessible and usable by the scientific community. This requirement has impelled gamma-ray astronomers to develop open-source science tools and standardised data formats. The objective of this presentation is to provide a perspective on the current effort to define a prototypical format for high-level gamma-ray astronomical data. The initiative, started by the IACT community in 2016, has gained in the years 2018 and 2019 full recognition thanks to the first public data releases in such format by current-generation IACTs, followed by a series of papers employing it either to test the capabilities of open-source gamma-ray analysis tools or to showcase examples of reproducible, multi-instrument analysis., Comment: Proceeding of the XXX Astronomical Data Analysis Software and Systems (ADASS) conference

Published
2021

6. Toward a Public MAGIC Gamma-Ray Telescope Legacy Data Portal

Author

Doro, Michele, Nigro, Cosimo, Prandini, Elisa, Tramacere, Andrea, Delfino, Manuel, Delgado, Jordi, Souto, Elia do, Jouvin, Lea, and Rico, Javier

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The MAGIC telescopes are one of the three major IACTs (Imaging Atmospheric Cherenkov Telescopes) for observation of gamma rays in the TeV regime currently operative. MAGIC functions since 2003, and has published data from more than 60 sources, mostly blazars. MAGIC already provides astronomical \texttt{.fits} files with basic final scientific products such as spectral energy distributions, light curves and skymaps from published results. In future, the format of the files can be complemented with further relevant information to the community: a) by including the full multi-wavelength dataset enclosed in a publication, b) providing data in alternative easy-to-use formats such as ASCII or ECSV, which are accessible with other commonly used packages such as \texttt{astropy} or \texttt{gammapy}. Finally, besides high level products, activities have started to provide photon event lists and instrument response functions in a format such that scientists within and outside the community are allowed to perform higher level analysis. A second aim is to provide a full legacy of MAGIC data. This contribution will illustrate the achievements and plans of this activity., Comment: Proceedings of the ICRC 2019

Published
2019

7. The Cherenkov Telescope Array sensitivity to the transient sky

Author

Fioretti, Valentina, Ribeiro, Deivid, Humensky, Thomas B., Bulgarelli, Andrea, Maier, Gernot, Moralejo, Abelardo, and Nigro, Cosimo

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract

The Cherenkov Telescope Array (CTA) will be able to perform unprecedented observations of the transient very high-energy sky. An on-line science alert generation (SAG) pipeline, with a required 30 second latency, will allow the discovery or follow-up of gamma ray bursts (GRBs) and flaring emission from active galactic nuclei, galactic compact objects and electromagnetic counterparts of gravitational waves or neutrino messengers. The CTA sensitivity for very short exposures does not only depend on the technological performance of the array (e.g. effective area, background discrimination efficiency). The algorithms to evaluate the significance of the detection also define the sensitivity, together with their computational efficiency in order to satisfy the SAG latency requirements. We explore the aperture photometry and likelihood analysis techniques, and the associated parameters (e.g. on-source to off-source exposure ratio, minimum number of required signal events), defining the CTA ability to detect a significant signal at short exposures. The resulting CTA differential flux sensitivity as a function of the observing time, obtained using the latest Monte Carlo simulations, is compared to the sensitivities of Fermi-LAT and current-generation IACTs obtained in the overlapping energy ranges., Comment: Proceedings of the 36th International Cosmic Ray Conference - Madison, WI, USA (PoS(ICRC2019)673)

Published
2019

8. Gammapy: A Python package for gamma-ray astronomy

Author

Donath, Axel, primary, Terrier, Régis, additional, Remy, Quentin, additional, Sinha, Atreyee, additional, Nigro, Cosimo, additional, Pintore, Fabio, additional, Khélifi, Bruno, additional, Olivera-Nieto, Laura, additional, Ruiz, Jose Enrique, additional, Brügge, Kai, additional, Linhoff, Maximilian, additional, Contreras, Jose Luis, additional, Acero, Fabio, additional, Aguasca-Cabot, Arnau, additional, Berge, David, additional, Bhattacharjee, Pooja, additional, Buchner, Johannes, additional, Boisson, Catherine, additional, Carreto Fidalgo, David, additional, Chen, Andrew, additional, de Bony de Lavergne, Mathieu, additional, de Miranda Cardoso, José Vinicius, additional, Deil, Christoph, additional, Füßling, Matthias, additional, Funk, Stefan, additional, Giunti, Luca, additional, Hinton, Jim, additional, Jouvin, Léa, additional, King, Johannes, additional, Lefaucheur, Julien, additional, Lemoine-Goumard, Marianne, additional, Lenain, Jean-Philippe, additional, López-Coto, Rubén, additional, Mohrmann, Lars, additional, Morcuende, Daniel, additional, Panny, Sebastian, additional, Regeard, Maxime, additional, Saha, Lab, additional, Siejkowski, Hubert, additional, Siemiginowska, Aneta, additional, Sipőcz, Brigitta M., additional, Unbehaun, Tim, additional, van Eldik, Christopher, additional, Vuillaume, Thomas, additional, and Zanin, Roberta, additional

Published
2023
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13. Multiwavelength variability and correlation studies of Mrk421 during historically low X-ray and γ-ray activity in 2015–2016

Author

Banerjee, Biswajit, primary, Acciari, Victor A., additional, Ansoldi, Stefano, additional, Antonelli, Lucio Angelo, additional, Arbet Engels, Axel, additional, Artero, Manuel, additional, Asano, Katsuaki, additional, Baack, Dominik, additional, Babić, Ana, additional, Baquero, Andrés, additional, Barres de Almeida, Ulisses, additional, Barrio, Juan Abel, additional, Batković, Ivana, additional, Becerra González, Josefa, additional, Bednarek, Wlodek, additional, Bellizzi, Lorenzo, additional, Bernardini, Elisa, additional, Bernardos, Maria-Isabel, additional, Berti, Alessio, additional, Besenrieder, Jürgen, additional, Bhattacharyya, Wrijupan, additional, Bigongiari, Ciro, additional, Biland, Adrian, additional, Blanch, Oscar, additional, Bökenkamp, Hendrik, additional, Bonnoli, Giacomo, additional, Bošnjak, Željka, additional, Busetto, Giovanni, additional, Carosi, Roberto, additional, Ceribella, Giovanni, additional, Cerruti, Matteo, additional, Chai, Yating, additional, Chilingarian, Ashot Agassi, additional, Cikota, Stefan, additional, Colak, Sidika Merve, additional, Colombo, Eduardo, additional, Contreras, Jose Luis, additional, Cortina, Juan, additional, Covino, Stefano, additional, D'Amico, Giacomo, additional, D'Elia, Valerio, additional, Da Vela, Paolo, additional, Dazzi, Francesco, additional, De Angelis, Alessandro, additional, De Lotto, Barbara, additional, Delfino, Manuel, additional, Delgado, Jordi, additional, Delgado Mendez, Carlos, additional, Depaoli, Davide, additional, Di Pierro, Federico, additional, Di Venere, Leonardo, additional, Do Souto Espiñeira, Elia, additional, Dominis Prester, Dijana, additional, Donini, Alice, additional, Dorner, Daniela, additional, Doro, Michele, additional, Elsaesser, Dominik, additional, Fallah Ramazani, Vandad, additional, Fattorini, Alicia, additional, Fonseca, Maria Victoria, additional, Font, Lluis, additional, Fruck, Christian, additional, Fukami, Satoshi, additional, Fukazawa, Yasushi, additional, García López, Ramon J., additional, Garczarczyk, Markus, additional, Gasparyan, Sargis, additional, Gaug, Markus, additional, Giglietto, Nicola, additional, Giordano, Francesco, additional, Gliwny, Pawel, additional, Godinović, Nikola, additional, Green, David, additional, Green, Jarred Gershon, additional, Hadasch, Daniela, additional, Hahn, Alexander, additional, Heckmann, Lea, additional, Herrera, Javier, additional, Hoang, John, additional, Hrupec, Dario, additional, Hütten, Moritz, additional, Inada, Tomohiro, additional, Ishio, Kazuma, additional, Iwamura, Yuki, additional, Jimenez-Martinez, Irene, additional, Jormanainen, Jenni, additional, Jouvin, Léa, additional, Karjalainen, Marie, additional, Kerszberg, Daniel, additional, Kobayashi, Yukiho, additional, Kubo, Hidetoshi, additional, Kushida, Junko, additional, Lamastra, Alessandra, additional, LELAS, Damir, additional, Leone, Francesco, additional, Lindfors, Elina, additional, Linhoff, Lena, additional, Lombardi, Saverio, additional, Longo, Francesco, additional, López-Coto, Rubén, additional, López-Moya, Marcos, additional, López-Oramas, Alicia, additional, Loporchio, Serena, additional, Machado de Oliveira Fraga, Bernardo, additional, Maggio, Camilla, additional, Majumdar, Pratik, additional, MAKARIEV, Martin, additional, Mallamaci, Manuela, additional, Maneva, Galina, additional, Manganaro, Marina, additional, Mannheim, Karl, additional, Maraschi, Laura, additional, Mariotti, Mosè, additional, Martínez, Manel, additional, Mazin, Daniel, additional, Menchiari, Stefano, additional, Mender, Simone, additional, Mićanović, Saša, additional, Miceli, Davide, additional, Miener, Tjark, additional, Miranda, Jose Miguel, additional, Mirzoyan, Razmik, additional, Molina, Edgar, additional, Moralejo, Abelardo, additional, Morcuende, Daniel, additional, Moreno, Victoria, additional, Moretti, Elena, additional, Nakamori, Takeshi, additional, Nava, Lara, additional, Neustroev, Vitaly, additional, Nigro, Cosimo, additional, Nilsson, Kari, additional, Nishijima, Kyoshi, additional, Noda, Koji, additional, Nozaki, Seiya, additional, Ohtani, Yoshiki, additional, Oka, Tomohiko, additional, Otero-Santos, Jorge, additional, Paiano, Simona, additional, Palatiello, Michele, additional, Paneque, David, additional, Paoletti, Riccardo, additional, Paredes, Josep M., additional, Pavletić, Lovro, additional, Peñil, Pablo, additional, Persic, Massimo, additional, Pihet, Marine, additional, Prada Moroni, Pier Giorgio, additional, Prandini, Elisa, additional, Priyadarshi, Chaitanya, additional, Puljak, Ivica, additional, Rhode, Wolfgang, additional, Ribó, Marc, additional, Rico, Javier, additional, Righi, Chiara, additional, Rugliancich, Andrea, additional, Sahakyan, Narek, additional, Saito, Takayuki, additional, Sakurai, Shunsuke, additional, Satalecka, Konstancja, additional, Saturni, Francesco Gabriele, additional, Schleicher, Bernd, additional, Schmidt, Kevin, additional, Schweizer, Thomas, additional, Sitarek, Julian, additional, Šnidarić, Iva, additional, Sobczyńska, Dorota, additional, Spolon, Alessia, additional, Stamerra, Antonio, additional, Strišković, Jelena, additional, Strom, Derek, additional, Strzys, Marcel C., additional, Suda, Yusuke, additional, Surić, Tihomir, additional, Takahashi, Mitsunari, additional, Takeishi, Ryuji, additional, Tavecchio, Fabrizio, additional, Temnikov, Petar, additional, Terzić, Tomislav, additional, Teshima, Masahiro, additional, Tosti, Luca, additional, Truzzi, Stefano, additional, Tutone, Antonio, additional, Ubach, Santiago, additional, van Scherpenberg, Juliane, additional, Vanzo, Gaia, additional, VAZQUEZ ACOSTA, Monica, additional, Ventura, Sofia, additional, VERGUILOV, Vassil, additional, Vigorito, Carlo francesco, additional, Vitale, Vincenzo, additional, Vovk, Ievgen, additional, Will, Martin, additional, Wunderlich, Carolin, additional, Yamamoto, Tokonatsu, additional, Zarić, Darko, additional, Balbo, Matteo, additional, Bretz, Thomas, additional, Buss, Jens, additional, Eisenberger, Laura, additional, Hildebrand, Dorothee, additional, Iotov, Roman, additional, Kalenski, Adelina, additional, Mitchell, Alison, additional, Neise, Dominik, additional, Noethe, Maximilian, additional, Paravac, Aleksander, additional, Sliusar, Vitalii, additional, Walter, Roland, additional, Valverde, J., additional, Horan, D., additional, Giroletti, M., additional, Perri, M., additional, Verrecchia, F., additional, Leto, C., additional, C. Sadun, A., additional, W. Moody, J., additional, Joner, M., additional, P. Marscher, A., additional, G. Jorstad, S., additional, Lähteenmäki, A., additional, ~Tornikoski, M., additional, Ramakrishnan, V., additional, Järvelä, E., additional, J. C. Vera, R., additional, Righini, S., additional, and Y. Lien, A., additional

Published
2021
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14. Observation of a relatively low luminosity long duration GRB 201015A by the MAGIC telescopes

Author

Suda, Yusuke, primary, Artero, Manuel, additional, Asano, Katsuaki, additional, Berti, Alessio, additional, Nava, Lara, additional, Noda, Koji, additional, Terauchi, Kenta, additional, Acciari, Victor A., additional, Ansoldi, Stefano, additional, Antonelli, Lucio Angelo, additional, Arbet Engels, Axel, additional, Baack, Dominik, additional, Babic, Ana, additional, Baquero, Andrés, additional, Barres de Almeida, Ulisses, additional, Barrio, Juan Abel, additional, Batković, Ivana, additional, Becerra Gonzalez, Josefa, additional, Bednarek, Wlodek, additional, Bellizzi, Lorenzo, additional, Bernardini, Elisa, additional, Bernardos, Maria-Isabel, additional, Besenrieder, Jürgen, additional, Bhattacharyya, Wrijupan, additional, Bigongiari, Ciro, additional, Biland, Adrian, additional, Blanch, Oscar, additional, Bökenkamp, Hendrik, additional, Bonnoli, Giacomo, additional, Bosnjak, Zeljka, additional, Busetto, Giovanni, additional, Carosi, Roberto, additional, Ceribella, Giovanni, additional, Cerruti, Matteo, additional, Chai, Yating, additional, Chilingarian, Ashot Agassi, additional, Cikota, Stefan, additional, Colak, Sidika Merve, additional, Colombo, Eduardo, additional, Contreras, Jose Luis, additional, Cortina, Juan, additional, Covino, Stefano, additional, D'Amico, Giacomo, additional, D'Elia, Valerio, additional, Da Vela, Paolo, additional, Dazzi, Francesco, additional, De Angelis, Alessandro, additional, De Lotto, Barbara, additional, Delfino, Manuel, additional, Delgado, Jordi, additional, Delgado Mendez, Carlos, additional, Depaoli, Davide, additional, Di Pierro, Federico, additional, Di Venere, Leonardo, additional, Do Souto Espiñeira, Elia, additional, Dominis Prester, Dijana, additional, Donini, Alice, additional, Dorner, Daniela, additional, Doro, Michele, additional, Elsaesser, Dominik, additional, Fallah Ramazani, Vandad, additional, Fattorini, Alicia, additional, Fonseca, Maria Victoria, additional, Font, Lluis, additional, Fruck, Christian, additional, Fukami, Satoshi, additional, Fukazawa, Yasushi, additional, García López, Ramon J., additional, Garczarczyk, Markus, additional, Gasparyan, Sargis, additional, Gaug, Markus, additional, Giglietto, Nicola, additional, Giordano, Francesco, additional, Gliwny, Pawel, additional, Godinovic, Nikola, additional, Green, David, additional, Green, Jarred Gershon, additional, Hadasch, Daniela, additional, Hahn, Alexander, additional, Heckmann, Lea, additional, Herrera, Javier, additional, Hoang, John, additional, Hrupec, Dario, additional, Hütten, Moritz, additional, Inada, Tomohiro, additional, Ishio, Kazuma, additional, Iwamura, Yuki, additional, Jiménez Martínez, Irene, additional, Jormanainen, Jenni, additional, Jouvin, Léa, additional, Karjalainen, Marie, additional, Kerszberg, Daniel, additional, Kobayashi, Yukiho, additional, Kubo, Hidetoshi, additional, Kushida, Junko, additional, Lamastra, Alessandra, additional, LELAS, Damir, additional, Leone, Francesco, additional, Lindfors, Elina, additional, Linhoff, Lena, additional, Lombardi, Saverio, additional, Longo, Francesco, additional, Lopez-Coto, Ruben, additional, López-Moya, Marcos, additional, López-Oramas, Alicia, additional, Loporchio, Serena, additional, Machado de Oliveira Fraga, Bernardo, additional, Maggio, Camilla, additional, Majumdar, Pratik, additional, MAKARIEV, Martin, additional, Mallamaci, Manuela, additional, Maneva, Galina, additional, Manganaro, Marina, additional, Mannheim, Karl, additional, Maraschi, Laura, additional, Mariotti, Mosè, additional, Martinez, Manel, additional, Mazin, Daniel, additional, Menchiari, Stefano, additional, Mender, Simone, additional, Mićanović, Saša, additional, Miceli, Davide, additional, Miener, Tjark, additional, Miranda, Jose Miguel, additional, Mirzoyan, Razmik, additional, Molina, Edgar, additional, Moralejo, Abelardo, additional, Morcuende, Daniel, additional, Moreno, Victoria, additional, Moretti, Elena, additional, Nakamori, Takeshi, additional, Neustroev, Vitaly, additional, Nigro, Cosimo, additional, Nilsson, Kari, additional, Nishijima, Kyoshi, additional, Nozaki, Seiya, additional, Ohtani, Yoshiki, additional, Oka, Tomohiko, additional, Otero-Santos, Jorge, additional, Paiano, Simona, additional, Palatiello, Michele, additional, Paneque, David, additional, Paoletti, Riccardo, additional, Paredes, Josep M., additional, Pavletić, Lovro, additional, Peñil, Pablo, additional, Persic, Massimo, additional, Pihet, Marine, additional, Prada Moroni, Pier Giorgio, additional, Prandini, Elisa, additional, Priyadarshi, Chaitanya, additional, Puljak, Ivica, additional, Rhode, Wolfgang, additional, Ribó, Marc, additional, Rico, Javier, additional, Righi, Chiara, additional, Rugliancich, Andrea, additional, Sahakyan, Narek, additional, Saito, Takayuki, additional, Sakurai, Shunsuke, additional, Satalecka, Konstancja, additional, Saturni, Francesco Gabriele, additional, Schleicher, Bernd, additional, Schmidt, Kevin, additional, Schweizer, Thomas, additional, Sitarek, Julian, additional, Šnidarić, Iva, additional, Sobczyńska, Dorota, additional, Spolon, Alessia, additional, Stamerra, Antonio, additional, Strišković, Jelena, additional, Strom, Derek, additional, Strzys, Marcel, additional, Surić, Tihomir, additional, Takahashi, Mitsunari, additional, Takeishi, Ryuji, additional, Tavecchio, Fabrizio, additional, Temnikov, Petar, additional, Terzic, Tomislav, additional, Teshima, Masahiro, additional, Tosti, Luca, additional, Truzzi, Stefano, additional, Tutone, Antonio, additional, Ubach, Santiago, additional, van Scherpenberg, Juliane, additional, Vanzo, Gaia, additional, VAZQUEZ ACOSTA, Monica, additional, Ventura, Sofia, additional, VERGUILOV, Vassil, additional, Vigorito, Carlo Francesco, additional, Vitale, Vincenzo, additional, Vovk, Ievgen, additional, Will, Martin, additional, Wunderlich, Carolin, additional, Yamamoto, Tokonatsu, additional, and Zarić, Darko, additional

Published
2021
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15. MAGIC and H.E.S.S. detect VHE gamma rays from the blazar OT081 for the first time: a deep multiwavelength study

Author

Manganaro, Marina, primary, Seglar-Arroyo, Monica, additional, Becerra-González, Josefa, additional, Sanchez, David, additional, Cerruti, Matteo, additional, Tavecchio, Fabrizio, additional, Fallah-Ramazani, Vandad, additional, Agudo, Ivan, additional, Ciprini, Stefano, additional, Filippenko, Alexei Vladimir, additional, Esteban-Gutierrez, A., additional, Hovatta, Talvikki, additional, Jermak, Helen, additional, Jorstad, Svetlana G., additional, Kopatskaya, Evgenia N., additional, Larionov, Valeri M., additional, Larionova, L. V., additional, Lähteenmäki, Anne, additional, Marscher, Alan, additional, Morozova, D. A., additional, Pahljina, Marko, additional, Tornikoski, Merja, additional, Troitskaya, Yuliya, additional, Troitsky, I., additional, Verrecchia, Francesco, additional, Xiao, H. B., additional, Weaver, Z. R., additional, Zheng, Weikang, additional, Acciari, Victor A., additional, Ansoldi, Stefano, additional, Antonelli, Lucio Angelo, additional, Arbet Engels, Axel, additional, Artero, Manuel, additional, Asano, Katsuaki, additional, Baack, Dominik, additional, Babic, Ana, additional, Baquero, Andrés, additional, Barres de Almeida, Ulisses, additional, Barrio, Juan Abel, additional, Batković, Ivana, additional, Becerra Gonzalez, Josefa, additional, Bednarek, Wlodek, additional, Bellizzi, Lorenzo, additional, Bernardini, Elisa, additional, Bernardos, Maria-Isabel, additional, Berti, Alessio, additional, Besenrieder, Jürgen, additional, Bhattacharyya, Wrijupan, additional, Bigongiari, Ciro, additional, Biland, Adrian, additional, Blanch, Oscar, additional, Bökenkamp, Hendrik, additional, Bonnoli, Giacomo, additional, Bosnjak, Zeljka, additional, Busetto, Giovanni, additional, Carosi, Roberto, additional, Ceribella, Giovanni, additional, Chai, Yating, additional, Chilingarian, Ashot Agassi, additional, Cikota, Stefan, additional, Colak, Sidika Merve, additional, Colombo, Eduardo, additional, Contreras, Jose Luis, additional, Cortina, Juan, additional, Covino, Stefano, additional, D'Amico, Giacomo, additional, D'Elia, Valerio, additional, Da Vela, Paolo, additional, Dazzi, Francesco, additional, De Angelis, Alessandro, additional, De Lotto, Barbara, additional, Delfino, Manuel, additional, Delgado, Jordi, additional, Delgado Mendez, Carlos, additional, Depaoli, Davide, additional, Di Pierro, Federico, additional, Di Venere, Leonardo, additional, Do Souto Espiñeira, Elia, additional, Dominis Prester, Dijana, additional, Donini, Alice, additional, Dorner, Daniela, additional, Doro, Michele, additional, Elsaesser, Dominik, additional, Fallah Ramazani, Vandad, additional, Fattorini, Alicia, additional, Fonseca, Maria Victoria, additional, Font, Lluis, additional, Fruck, Christian, additional, Fukami, Satoshi, additional, Fukazawa, Yasushi, additional, García López, Ramon J., additional, Garczarczyk, Markus, additional, Gasparyan, Sargis, additional, Gaug, Markus, additional, Giglietto, Nicola, additional, Giordano, Francesco, additional, Gliwny, Pawel, additional, Godinovic, Nikola, additional, Green, David, additional, Green, Jarred Gershon, additional, Hadasch, Daniela, additional, Hahn, Alexander, additional, Heckmann, Lea, additional, Herrera, Javier, additional, Hoang, John, additional, Hrupec, Dario, additional, Hütten, Moritz, additional, Inada, Tomohiro, additional, Ishio, Kazuma, additional, Iwamura, Yuki, additional, Jiménez Martínez, Irene, additional, Jormanainen, Jenni, additional, Jouvin, Léa, additional, Karjalainen, Marie, additional, Kerszberg, Daniel, additional, Kobayashi, Yukiho, additional, Kubo, Hidetoshi, additional, Kushida, Junko, additional, Lamastra, Alessandra, additional, LELAS, Damir, additional, Leone, Francesco, additional, Lindfors, Elina, additional, Linhoff, Lena, additional, Lombardi, Saverio, additional, Longo, Francesco, additional, Lopez-Coto, Ruben, additional, López-Moya, Marcos, additional, López-Oramas, Alicia, additional, Loporchio, Serena, additional, Machado de Oliveira Fraga, Bernardo, additional, Maggio, Camilla, additional, Majumdar, Pratik, additional, MAKARIEV, Martin, additional, Mallamaci, Manuela, additional, Maneva, Galina, additional, Mannheim, Karl, additional, Maraschi, Laura, additional, Mariotti, Mosè, additional, Martinez, Manel, additional, Mazin, Daniel, additional, Menchiari, Stefano, additional, Mender, Simone, additional, Mićanović, Saša, additional, Miceli, Davide, additional, Miener, Tjark, additional, Miranda, Jose Miguel, additional, Mirzoyan, Razmik, additional, Molina, Edgar, additional, Moralejo, Abelardo, additional, Morcuende, Daniel, additional, Moreno, Victoria, additional, Moretti, Elena, additional, Nakamori, Takeshi, additional, Nava, Lara, additional, Neustroev, Vitaly, additional, Nigro, Cosimo, additional, Nilsson, Kari, additional, Nishijima, Kyoshi, additional, Noda, Koji, additional, Nozaki, Seiya, additional, Ohtani, Yoshiki, additional, Oka, Tomohiko, additional, Otero-Santos, Jorge, additional, Paiano, Simona, additional, Palatiello, Michele, additional, Paneque, David, additional, Paoletti, Riccardo, additional, Paredes, Josep M., additional, Pavletić, Lovro, additional, Peñil, Pablo, additional, Persic, Massimo, additional, Pihet, Marine, additional, Prada Moroni, Pier Giorgio, additional, Prandini, Elisa, additional, Priyadarshi, Chaitanya, additional, Puljak, Ivica, additional, Rhode, Wolfgang, additional, Ribó, Marc, additional, Rico, Javier, additional, Righi, Chiara, additional, Rugliancich, Andrea, additional, Sahakyan, Narek, additional, Saito, Takayuki, additional, Sakurai, Shunsuke, additional, Satalecka, Konstancja, additional, Saturni, Francesco Gabriele, additional, Schleicher, Bernd, additional, Schmidt, Kevin, additional, Schweizer, Thomas, additional, Sitarek, Julian, additional, Šnidarić, Iva, additional, Sobczyńska, Dorota, additional, Spolon, Alessia, additional, Stamerra, Antonio, additional, Strišković, Jelena, additional, Strom, Derek, additional, Strzys, Marcel C., additional, Suda, Yusuke, additional, Surić, Tihomir, additional, Takahashi, Mitsunari, additional, Takeishi, Ryuji, additional, Temnikov, Petar, additional, Terzic, Tomislav, additional, Teshima, Masahiro, additional, Tosti, Luca, additional, Truzzi, Stefano, additional, Tutone, Antonio, additional, Ubach, Santiago, additional, van Scherpenberg, Juliane, additional, Vanzo, Gaia, additional, VAZQUEZ ACOSTA, Monica, additional, Ventura, Sofia, additional, VERGUILOV, Vassil, additional, Vigorito, Carlo francesco, additional, Vitale, Vincenzo, additional, Vovk, Ievgen, additional, Will, Martin, additional, Wunderlich, Carolin, additional, Yamamoto, Tokonatsu, additional, and Zarić, Darko, additional

Published
2021
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16. Protons Spectrum from MAGIC Telescopes data

Author

Temnikov, Petar, primary, VERGUILOV, Vassil, additional, Maneva, Galina, additional, Mirzoyan, Razmik, additional, Baack, Dominik, additional, Acciari, Victor A., additional, Ansoldi, Stefano, additional, Antonelli, Lucio Angelo, additional, Arbet Engels, Axel, additional, Artero, Manuel, additional, Asano, Katsuaki, additional, Babić, Ana, additional, Baquero, Andrés, additional, Barres de Almeida, Ulisses, additional, Barrio, Juan Abel, additional, Batković, Ivana, additional, Becerra González, Josefa, additional, Bednarek, Wlodek, additional, Bellizzi, Lorenzo, additional, Bernardini, Elisa, additional, Bernardos, Maria-Isabel, additional, Berti, Alessio, additional, Besenrieder, Jürgen, additional, Bhattacharyya, Wrijupan, additional, Bigongiari, Ciro, additional, Biland, Adrian, additional, Blanch, Oscar, additional, Bökenkamp, Hendrik, additional, Bonnoli, Giacomo, additional, Bošnjak, Željka, additional, Busetto, Giovanni, additional, Carosi, Roberto, additional, Ceribella, Giovanni, additional, Cerruti, Matteo, additional, Chai, Yating, additional, Chilingarian, Ashot Agassi, additional, Cikota, Stefan, additional, Colak, Sidika Merve, additional, Colombo, Eduardo, additional, Contreras, Jose Luis, additional, Cortina, Juan, additional, Covino, Stefano, additional, D'Amico, Giacomo, additional, D'Elia, Valerio, additional, Da Vela, Paolo, additional, Dazzi, Francesco, additional, De Angelis, Alessandro, additional, De Lotto, Barbara, additional, Delfino, Manuel, additional, Delgado, Jordi, additional, Delgado Mendez, Carlos, additional, Depaoli, Davide, additional, Di Pierro, Federico, additional, Di Venere, Leonardo, additional, Do Souto Espiñeira, Elia, additional, Dominis Prester, Dijana, additional, Donini, Alice, additional, Dorner, Daniela, additional, Doro, Michele, additional, Elsaesser, Dominik, additional, Fallah Ramazani, Vandad, additional, Fattorini, Alicia, additional, Fonseca, Maria Victoria, additional, Font, Lluis, additional, Fruck, Christian, additional, Fukami, Satoshi, additional, Fukazawa, Yasushi, additional, García López, Ramon J., additional, Garczarczyk, Markus, additional, Gasparyan, Sargis, additional, Gaug, Markus, additional, Giglietto, Nicola, additional, Giordano, Francesco, additional, Gliwny, Pawel, additional, Godinović, Nikola, additional, Green, David, additional, Green, Jarred Gershon, additional, Hadasch, Daniela, additional, Hahn, Alexander, additional, Heckmann, Lea, additional, Herrera, Javier, additional, Hoang, John, additional, Hrupec, Dario, additional, Hütten, Moritz, additional, Inada, Tomohiro, additional, Ishio, Kazuma, additional, Iwamura, Yuki, additional, Jiménez Martínez, Irene, additional, Jormanainen, Jenni, additional, Jouvin, Léa, additional, Karjalainen, Marie, additional, Kerszberg, Daniel, additional, Kobayashi, Yukiho, additional, Kubo, Hidetoshi, additional, Kushida, Junko, additional, Lamastra, Alessandra, additional, LELAS, Damir, additional, Leone, Francesco, additional, Lindfors, Elina, additional, Linhoff, Lena, additional, Lombardi, Saverio, additional, Longo, Francesco, additional, López-Coto, Rubén, additional, López-Moya, Marcos, additional, López-Oramas, Alicia, additional, Loporchio, Serena, additional, Machado de Oliveira Fraga, Bernardo, additional, Maggio, Camilla, additional, Majumdar, Pratik, additional, MAKARIEV, Martin, additional, Mallamaci, Manuela, additional, Manganaro, Marina, additional, Mannheim, Karl, additional, Maraschi, Laura, additional, Mariotti, Mosè, additional, Martínez, Manel, additional, Mazin, Daniel, additional, Menchiari, Stefano, additional, Mender, Simone, additional, Mićanović, Saša, additional, Miceli, Davide, additional, Miener, Tjark, additional, Miranda, Jose Miguel, additional, Molina, Edgar, additional, Moralejo, Abelardo, additional, Morcuende, Daniel, additional, Moreno, Victoria, additional, Moretti, Elena, additional, Nakamori, Takeshi, additional, Nava, Lara, additional, Neustroev, Vitaly, additional, Nigro, Cosimo, additional, Nilsson, Kari, additional, Nishijima, Kyoshi, additional, Noda, Koji, additional, Nozaki, Seiya, additional, Ohtani, Yoshiki, additional, Oka, Tomohiko, additional, Otero-Santos, Jorge, additional, Paiano, Simona, additional, Palatiello, Michele, additional, Paneque, David, additional, Paoletti, Riccardo, additional, Paredes, Josep M., additional, Pavletić, Lovro, additional, Peñil, Pablo, additional, Persic, Massimo, additional, Pihet, Marine, additional, Prada Moroni, Pier Giorgio, additional, Prandini, Elisa, additional, Priyadarshi, Chaitanya, additional, Puljak, Ivica, additional, Rhode, Wolfgang, additional, Ribó, Marc, additional, Rico, Javier, additional, Righi, Chiara, additional, Rugliancich, Andrea, additional, Sahakyan, Narek, additional, Saito, Takayuki, additional, Sakurai, Shunsuke, additional, Satalecka, Konstancja, additional, Saturni, Francesco Gabriele, additional, Schleicher, Bernd, additional, Schmidt, Kevin, additional, Schweizer, Thomas, additional, Sitarek, Julian, additional, Šnidarić, Iva, additional, Sobczyńska, Dorota, additional, Spolon, Alessia, additional, Stamerra, Antonio, additional, Strišković, Jelena, additional, Strom, Derek, additional, Strzys, Marcel, additional, Suda, Yusuke, additional, Surić, Tihomir, additional, Takahashi, Mitsunari, additional, Takeishi, Ryuji, additional, Tavecchio, Fabrizio, additional, Terzić, Tomislav, additional, Teshima, Masahiro, additional, Tosti, Luca, additional, Truzzi, Stefano, additional, Tutone, Antonio, additional, Ubach, Santiago, additional, van Scherpenberg, Juliane, additional, Vanzo, Gaia, additional, VAZQUEZ ACOSTA, Monica, additional, Ventura, Sofia, additional, Vigorito, Carlo Francesco, additional, Vitale, Vincenzo, additional, Vovk, Ievgen, additional, Will, Martin, additional, Wunderlich, Carolin, additional, Yamamoto, Tokonatsu, additional, and Zarić, Darko, additional

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2021
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17. MAGIC observations of the nearby short GRB 160821B

Author

Noda, Koji, primary, Nava, Lara, additional, Inoue, Susumu, additional, Fukami, Satoshi, additional, Palatiello, Michele, additional, Berti, Alessio, additional, Longo, Francesco, additional, Acciari, Victor A., additional, Ansoldi, Stefano, additional, Antonelli, Lucio Angelo, additional, Arbet Engels, Axel, additional, Artero, Manuel, additional, Asano, Katsuaki, additional, Baack, Dominik, additional, Babic, Ana, additional, Baquero, Andrés, additional, Barres de Almeida, Ulisses, additional, Barrio, Juan Abel, additional, Batković, Ivana, additional, Becerra Gonzalez, Josefa, additional, Bednarek, Wlodek, additional, Bellizzi, Lorenzo, additional, Bernardini, Elisa, additional, Bernardos, Maria-Isabel, additional, Besenrieder, Jürgen, additional, Bhattacharyya, Wrijupan, additional, Bigongiari, Ciro, additional, Biland, Adrian, additional, Blanch, Oscar, additional, Bökenkamp, Hendrik, additional, Bonnoli, Giacomo, additional, Bosnjak, Zeljka, additional, Busetto, Giovanni, additional, Carosi, Roberto, additional, Ceribella, Giovanni, additional, Cerruti, Matteo, additional, Chai, Yating, additional, Chilingarian, Ashot Agassi, additional, Cikota, Stefan, additional, Colak, Sidika Merve, additional, Colombo, Eduardo, additional, Contreras, Jose Luis, additional, Cortina, Juan, additional, Covino, Stefano, additional, D'Amico, Giacomo, additional, D'Elia, Valerio, additional, Da Vela, Paolo, additional, Dazzi, Francesco, additional, De Angelis, Alessandro, additional, De Lotto, Barbara, additional, Delfino, Manuel, additional, Delgado, Jordi, additional, Delgado Mendez, Carlos, additional, Depaoli, Davide, additional, Di Pierro, Federico, additional, Di Venere, Leonardo, additional, Do Souto Espiñeira, Elia, additional, Dominis Prester, Dijana, additional, Donini, Alice, additional, Dorner, Daniela, additional, Doro, Michele, additional, Elsaesser, Dominik, additional, Fallah Ramazani, Vandad, additional, Fattorini, Alicia, additional, Fonseca, Maria Victoria, additional, Font, Lluis, additional, Fruck, Christian, additional, Fukazawa, Yasushi, additional, García López, Ramon J., additional, Garczarczyk, Markus, additional, Gasparyan, Sargis, additional, Gaug, Markus, additional, Giglietto, Nicola, additional, Giordano, Francesco, additional, Gliwny, Pawel, additional, Godinovic, Nikola, additional, Green, David, additional, Green, Jarred Gershon, additional, Hadasch, Daniela, additional, Hahn, Alexander, additional, Heckmann, Lea, additional, Herrera, Javier, additional, Hoang, John, additional, Hrupec, Dario, additional, Hütten, Moritz, additional, Inada, Tomohiro, additional, Ishio, Kazuma, additional, Iwamura, Yuki, additional, Jiménez Martínez, Irene, additional, Jormanainen, Jenni, additional, Jouvin, Léa, additional, Karjalainen, Marie, additional, Kerszberg, Daniel, additional, Kobayashi, Yukiho, additional, Kubo, Hidetoshi, additional, Kushida, Junko, additional, Lamastra, Alessandra, additional, LELAS, Damir, additional, Leone, Francesco, additional, Lindfors, Elina, additional, Linhoff, Lena, additional, Lombardi, Saverio, additional, Lopez-Coto, Ruben, additional, López-Moya, Marcos, additional, López-Oramas, Alicia, additional, Loporchio, Serena, additional, Machado de Oliveira Fraga, Bernardo, additional, Maggio, Camilla, additional, Majumdar, Pratik, additional, MAKARIEV, Martin, additional, Mallamaci, Manuela, additional, Maneva, Galina, additional, Manganaro, Marina, additional, Mannheim, Karl, additional, Maraschi, Laura, additional, Mariotti, Mosè, additional, Martinez, Manel, additional, Mazin, Daniel, additional, Menchiari, Stefano, additional, Mender, Simone, additional, Mićanović, Saša, additional, Miceli, Davide, additional, Miener, Tjark, additional, Miranda, Jose Miguel, additional, Mirzoyan, Razmik, additional, Molina, Edgar, additional, Moralejo, Abelardo, additional, Morcuende, Daniel, additional, Moreno, Victoria, additional, Moretti, Elena, additional, Nakamori, Takeshi, additional, Neustroev, Vitaly, additional, Nigro, Cosimo, additional, Nilsson, Kari, additional, Nishijima, Kyoshi, additional, Nozaki, Seiya, additional, Ohtani, Yoshiki, additional, Oka, Tomohiko, additional, Otero-Santos, Jorge, additional, Paiano, Simona, additional, Paneque, David, additional, Paoletti, Riccardo, additional, Paredes, Josep M., additional, Pavletić, Lovro, additional, Peñil, Pablo, additional, Persic, Massimo, additional, Pihet, Marine, additional, Prada Moroni, Pier Giorgio, additional, Prandini, Elisa, additional, Priyadarshi, Chaitanya, additional, Puljak, Ivica, additional, Rhode, Wolfgang, additional, Ribó, Marc, additional, Rico, Javier, additional, Righi, Chiara, additional, Rugliancich, Andrea, additional, Sahakyan, Narek, additional, Saito, Takayuki, additional, Sakurai, Shunsuke, additional, Satalecka, Konstancja, additional, Saturni, Francesco Gabriele, additional, Schleicher, Bernd, additional, Schmidt, Kevin, additional, Schweizer, Thomas, additional, Sitarek, Julian, additional, Šnidarić, Iva, additional, Sobczyńska, Dorota, additional, Spolon, Alessia, additional, Stamerra, Antonio, additional, Strišković, Jelena, additional, Strom, Derek, additional, Strzys, Marcel, additional, Suda, Yusuke, additional, Surić, Tihomir, additional, Takahashi, Mitsunari, additional, Takeishi, Ryuji, additional, Tavecchio, Fabrizio, additional, Temnikov, Petar, additional, Terzic, Tomislav, additional, Teshima, Masahiro, additional, Tosti, Luca, additional, Truzzi, Stefano, additional, Tutone, Antonio, additional, Ubach, Santiago, additional, van Scherpenberg, Juliane, additional, Vanzo, Gaia, additional, VAZQUEZ ACOSTA, Monica, additional, Ventura, Sofia, additional, VERGUILOV, Vassil, additional, Vigorito, Carlo Francesco, additional, Vitale, Vincenzo, additional, Vovk, Ievgen, additional, Will, Martin, additional, Wunderlich, Carolin, additional, Yamamoto, Tokonatsu, additional, and Zarić, Darko, additional

Published
2021
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18. Recent MAGIC results on Galactic binaries

Author

Molina, Edgar, primary, Acciari, Victor A., additional, Ansoldi, Stefano, additional, Antonelli, Lucio Angelo, additional, Arbet Engels, Axel, additional, Artero, Manuel, additional, Asano, Katsuaki, additional, Baack, Dominik, additional, Babić, Ana, additional, Baquero, Andrés, additional, Barres de Almeida, Ulisses, additional, Barrio, Juan Abel, additional, Batković, Ivana, additional, Becerra González, Josefa, additional, Bednarek, Wlodek, additional, Bellizzi, Lorenzo, additional, Bernardini, Elisa, additional, Bernardos, Maria-Isabel, additional, Berti, Alessio, additional, Besenrieder, Jürgen, additional, Bhattacharyya, Wrijupan, additional, Bigongiari, Ciro, additional, Biland, Adrian, additional, Blanch, Oscar, additional, Bökenkamp, Hendrik, additional, Bonnoli, Giacomo, additional, Bošnjak, Željka, additional, Busetto, Giovanni, additional, Carosi, Roberto, additional, Ceribella, Giovanni, additional, Cerruti, Matteo, additional, Chai, Yating, additional, Chilingarian, Ashot Agassi, additional, Cikota, Stefan, additional, Colak, Sidika Merve, additional, Colombo, Eduardo, additional, Contreras, Jose Luis, additional, Cortina, Juan, additional, Covino, Stefano, additional, D'Amico, Giacomo, additional, D'Elia, Valerio, additional, Da Vela, Paolo, additional, Dazzi, Francesco, additional, De Angelis, Alessandro, additional, De Lotto, Barbara, additional, Delfino, Manuel, additional, Delgado, Jordi, additional, Delgado Mendez, Carlos, additional, Depaoli, Davide, additional, Di Pierro, Federico, additional, Di Venere, Leonardo, additional, Do Souto Espiñeira, Elia, additional, Dominis Prester, Dijana, additional, Donini, Alice, additional, Dorner, Daniela, additional, Doro, Michele, additional, Elsaesser, Dominik, additional, Fallah Ramazani, Vandad, additional, Fattorini, Alicia, additional, Fonseca, Maria Victoria, additional, Font, Lluis, additional, Fruck, Christian, additional, Fukami, Satoshi, additional, Fukazawa, Yasushi, additional, García López, Ramon J., additional, Garczarczyk, Markus, additional, Gasparyan, Sargis, additional, Gaug, Markus, additional, Giglietto, Nicola, additional, Giordano, Francesco, additional, Gliwny, Pawel, additional, Godinović, Nikola, additional, Green, David, additional, Green, Jarred Gershon, additional, Hadasch, Daniela, additional, Hahn, Alexander, additional, Heckmann, Lea, additional, Herrera, Javier, additional, Hoang, John, additional, Hrupec, Dario, additional, Hütten, Moritz, additional, Inada, Tomohiro, additional, Ishio, Kazuma, additional, Iwamura, Yuki, additional, Jimenez-Martinez, Irene, additional, Jormanainen, Jenni, additional, Jouvin, Léa, additional, Karjalainen, Marie, additional, Kerszberg, Daniel, additional, Kobayashi, Yukiho, additional, Kubo, Hidetoshi, additional, Kushida, Junko, additional, Lamastra, Alessandra, additional, LELAS, Damir, additional, Leone, Francesco, additional, Lindfors, Elina, additional, Linhoff, Lena, additional, Lombardi, Saverio, additional, Longo, Francesco, additional, López-Coto, Rubén, additional, López-Moya, Marcos, additional, López-Oramas, Alicia, additional, Loporchio, Serena, additional, Machado de Oliveira Fraga, Bernardo, additional, Maggio, Camilla, additional, Majumdar, Pratik, additional, MAKARIEV, Martin, additional, Mallamaci, Manuela, additional, Maneva, Galina, additional, Manganaro, Marina, additional, Mannheim, Karl, additional, Maraschi, Laura, additional, Mariotti, Mosè, additional, Martínez, Manel, additional, Mazin, Daniel, additional, Menchiari, Stefano, additional, Mender, Simone, additional, Mićanović, Saša, additional, Miceli, Davide, additional, Miener, Tjark, additional, Miranda, Jose Miguel, additional, Mirzoyan, Razmik, additional, Moralejo, Abelardo, additional, Morcuende, Daniel, additional, Moreno, Victoria, additional, Moretti, Elena, additional, Nakamori, Takeshi, additional, Nava, Lara, additional, Neustroev, Vitaly, additional, Nigro, Cosimo, additional, Nilsson, Kari, additional, Nishijima, Kyoshi, additional, Noda, Koji, additional, Nozaki, Seiya, additional, Ohtani, Yoshiki, additional, Oka, Tomohiko, additional, Otero-Santos, Jorge, additional, Paiano, Simona, additional, Palatiello, Michele, additional, Paneque, David, additional, Paoletti, Riccardo, additional, Paredes, Josep M., additional, Pavletić, Lovro, additional, Peñil, Pablo, additional, Persic, Massimo, additional, Pihet, Marine, additional, Prada Moroni, Pier Giorgio, additional, Prandini, Elisa, additional, Priyadarshi, Chaitanya, additional, Puljak, Ivica, additional, Rhode, Wolfgang, additional, Ribó, Marc, additional, Rico, Javier, additional, Righi, Chiara, additional, Rugliancich, Andrea, additional, Sahakyan, Narek, additional, Saito, Takayuki, additional, Sakurai, Shunsuke, additional, Satalecka, Konstancja, additional, Saturni, Francesco Gabriele, additional, Schleicher, Bernd, additional, Schmidt, Kevin, additional, Schweizer, Thomas, additional, Sitarek, Julian, additional, Šnidarić, Iva, additional, Sobczyńska, Dorota, additional, Spolon, Alessia, additional, Stamerra, Antonio, additional, Strišković, Jelena, additional, Strom, Derek, additional, Strzys, Marcel C., additional, Suda, Yusuke, additional, Surić, Tihomir, additional, Takahashi, Mitsunari, additional, Takeishi, Ryuji, additional, Tavecchio, Fabrizio, additional, Temnikov, Petar, additional, Terzić, Tomislav, additional, Teshima, Masahiro, additional, Tosti, Luca, additional, Truzzi, Stefano, additional, Tutone, Antonio, additional, Ubach, Santiago, additional, van Scherpenberg, Juliane, additional, Vanzo, Gaia, additional, VAZQUEZ ACOSTA, Monica, additional, Ventura, Sofia, additional, VERGUILOV, Vassil, additional, Vigorito, Carlo francesco, additional, Vitale, Vincenzo, additional, Vovk, Ievgen, additional, Will, Martin, additional, Wunderlich, Carolin, additional, Yamamoto, Tokonatsu, additional, and Zarić, Darko, additional

Published
2021
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19. Multi-epoch monitoring of TXS 0506+056 with MAGIC and MWL partners

Author

Satalecka, Konstancja, primary, Acciari, Victor A., additional, Ansoldi, Stefano, additional, Antonelli, Lucio Angelo, additional, Arbet Engels, Axel, additional, Artero, Manuel, additional, Asano, Katsuaki, additional, Baack, Dominik, additional, Babic, Ana, additional, Baquero, Andrés, additional, Barres de Almeida, Ulisses, additional, Barrio, Juan Abel, additional, Batković, Ivana, additional, Becerra Gonzalez, Josefa, additional, Bednarek, Wlodek, additional, Bellizzi, Lorenzo, additional, Bernardini, Elisa, additional, Bernardos, Maria-Isabel, additional, Berti, Alessio, additional, Besenrieder, Jürgen, additional, Bhattacharyya, Wrijupan, additional, Bigongiari, Ciro, additional, Biland, Adrian, additional, Blanch, Oscar, additional, Bökenkamp, Hendrik, additional, Bonnoli, Giacomo, additional, Bosnjak, Zeljka, additional, Busetto, Giovanni, additional, Carosi, Roberto, additional, Ceribella, Giovanni, additional, Cerruti, Matteo, additional, Chai, Yating, additional, Chilingarian, Ashot Agassi, additional, Cikota, Stefan, additional, Colak, Sidika Merve, additional, Colombo, Eduardo, additional, Contreras, Jose Luis, additional, Cortina, Juan, additional, Covino, Stefano, additional, D'Amico, Giacomo, additional, D'Elia, Valerio, additional, Da Vela, Paolo, additional, Dazzi, Francesco, additional, De Angelis, Alessandro, additional, De Lotto, Barbara, additional, Delfino, Manuel, additional, Delgado, Jordi, additional, Delgado Mendez, Carlos, additional, Depaoli, Davide, additional, Di Pierro, Federico, additional, Di Venere, Leonardo, additional, Do Souto Espiñeira, Elia, additional, Dominis Prester, Dijana, additional, Donini, Alice, additional, Dorner, Daniela, additional, Doro, Michele, additional, Elsaesser, Dominik, additional, Fallah Ramazani, Vandad, additional, Fattorini, Alicia, additional, Fonseca, Maria Victoria, additional, Font, Lluis, additional, Fruck, Christian, additional, Fukami, Satoshi, additional, Fukazawa, Yasushi, additional, García López, Ramon J., additional, Garczarczyk, Markus, additional, Gasparyan, Sargis, additional, Gaug, Markus, additional, Giglietto, Nicola, additional, Giordano, Francesco, additional, Gliwny, Pawel, additional, Godinovic, Nikola, additional, Green, David, additional, Green, Jarred Gershon, additional, Hadasch, Daniela, additional, Hahn, Alexander, additional, Heckmann, Lea, additional, Herrera, Javier, additional, Hoang, John, additional, Hrupec, Dario, additional, Hütten, Moritz, additional, Inada, Tomohiro, additional, Ishio, Kazuma, additional, Iwamura, Yuki, additional, Jiménez Martínez, Irene, additional, Jormanainen, Jenni, additional, Jouvin, Léa, additional, Karjalainen, Marie, additional, Kerszberg, Daniel, additional, Kobayashi, Yukiho, additional, Kubo, Hidetoshi, additional, Kushida, Junko, additional, Lamastra, Alessandra, additional, LELAS, Damir, additional, Leone, Francesco, additional, Lindfors, Elina, additional, Linhoff, Lena, additional, Lombardi, Saverio, additional, Longo, Francesco, additional, Lopez-Coto, Ruben, additional, López-Moya, Marcos, additional, López-Oramas, Alicia, additional, Loporchio, Serena, additional, Machado de Oliveira Fraga, Bernardo, additional, Maggio, Camilla, additional, Majumdar, Pratik, additional, MAKARIEV, Martin, additional, Mallamaci, Manuela, additional, Maneva, Galina, additional, Manganaro, Marina, additional, Mannheim, Karl, additional, Maraschi, Laura, additional, Mariotti, Mosè, additional, Martinez, Manel, additional, Mazin, Daniel, additional, Menchiari, Stefano, additional, Mender, Simone, additional, Mićanović, Saša, additional, Miceli, Davide, additional, Miener, Tjark, additional, Miranda, Jose Miguel, additional, Mirzoyan, Razmik, additional, Molina, Edgar, additional, Moralejo, Abelardo, additional, Morcuende, Daniel, additional, Moreno, Victoria, additional, Moretti, Elena, additional, Nakamori, Takeshi, additional, Nava, Lara, additional, Neustroev, Vitaly, additional, Nigro, Cosimo, additional, Nilsson, Kari, additional, Nishijima, Kyoshi, additional, Noda, Koji, additional, Nozaki, Seiya, additional, Ohtani, Yoshiki, additional, Oka, Tomohiko, additional, Otero-Santos, Jorge, additional, Paiano, Simona, additional, Palatiello, Michele, additional, Paneque, David, additional, Paoletti, Riccardo, additional, Paredes, Josep M., additional, Pavletić, Lovro, additional, Peñil, Pablo, additional, Persic, Massimo, additional, Pihet, Marine, additional, Prada Moroni, Pier Giorgio, additional, Prandini, Elisa, additional, Priyadarshi, Chaitanya, additional, Puljak, Ivica, additional, Rhode, Wolfgang, additional, Ribó, Marc, additional, Rico, Javier, additional, Righi, Chiara, additional, Rugliancich, Andrea, additional, Sahakyan, Narek, additional, Saito, Takayuki, additional, Sakurai, Shunsuke, additional, Saturni, Francesco Gabriele, additional, Schleicher, Bernd, additional, Schmidt, Kevin, additional, Schweizer, Thomas, additional, Sitarek, Julian, additional, Šnidarić, Iva, additional, Sobczyńska, Dorota, additional, Spolon, Alessia, additional, Stamerra, Antonio, additional, Strišković, Jelena, additional, Strom, Derek, additional, Strzys, Marcel, additional, Suda, Yusuke, additional, Surić, Tihomir, additional, Takahashi, Mitsunari, additional, Takeishi, Ryuji, additional, Tavecchio, Fabrizio, additional, Temnikov, Petar, additional, Terzic, Tomislav, additional, Teshima, Masahiro, additional, Tosti, Luca, additional, Truzzi, Stefano, additional, Tutone, Antonio, additional, Ubach, Santiago, additional, van Scherpenberg, Juliane, additional, Vanzo, Gaia, additional, VAZQUEZ ACOSTA, Monica, additional, Ventura, Sofia, additional, VERGUILOV, Vassil, additional, Vigorito, Carlo Francesco, additional, Vitale, Vincenzo, additional, Vovk, Ievgen, additional, Will, Martin, additional, Wunderlich, Carolin, additional, Yamamoto, Tokonatsu, additional, Zarić, Darko, additional, Aniello, Tommaso, additional, D'Ammando, Filippo, additional, Viale, Ilaria, additional, Hovatta, Talvikki, additional, Edwards, Philip G., additional, Kiehlmann, Sebastian, additional, Readhead, Anthony, additional, Kadler, Matthias, additional, Bach, Uwe, additional, Berge, David, additional, Buson, Sara, additional, Eppel, Florian, additional, Giroletti, Marcello, additional, Hervet, Olivier, additional, Gokus, Andrea, additional, Heßdörfer, Jonas, additional, Koyama, Shoko, additional, Kraus, Alex, additional, Krichbaum, Thomas, additional, de Menezes, Raniere, additional, Ojha, Roopesh, additional, Paraschos, Georgios, additional, Pueschel, Elisa, additional, Rösch, Florian, additional, Ros, Eduardo, additional, Sinapius, Jonas, additional, Wilms, Jörn, additional, Zacharias, Michael, additional, and Stevens, Jamie, additional

Published
2021
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20. Study of Persistent and Flaring Gamma-Ray Emission from Active Galactic Nuclei with the MAGIC Telescopes and Prospects for Future Open Data Formats in Gamma-Ray Astronomy

Author

Nigro, Cosimo, Bernardini, Elisa, Maier, Gernot, and Franceschini, Alberto

Subjects
Gamma-ray astronomy, DL3, flat spectrum radio quasars, UO 9500, NGC 1275, 530 Physik, MAGIC, PKS 1510-089, US 1670, ddc:530, AGN, open data formats, radio galaxies
Abstract

Angetrieben durch die Akkretion von Materie in ein super massives Schwarzes Loch in ihrem Zentrum, stellen aktive Galaxien die stärksten und beständigsten Strahlungsquellen im Universum dar. Ihre elektromagnetische Emission kann sich bis in den Gammastrahlenbereich ausbreiten. Das Ziel dieser Arbeit ist, diese Mechanismen und die Orte jenseits der hoch energetischen Emission zu charakterisieren. Dafür werden die Observationen von zwei Aktiven Galaxien im Bereich von hunderten von GeV verwendet, welche mit den Cherenkov Teleskopen MAGIC aufgenommen wurden. Die physikalische Interpretation wird durch Beobachtungen mit dem Fermi Gamma-ray Space Teleskop und durch Multiwellenlängendaten unterstützt. Es werden zwei Aktive Galaxien mit Jet untersucht: PKS 1510-089 und NGC 1275. Die MAGIC Teleskope, welche PKS 1510-089 seit 2012 immer wieder beobachten, detektieren eine signifikante Emission über dutzende von Observationsstunden, was auf schwache aber kontinuierliche Gammastrahlung aus dieser Quelle hinweist. NGC 1275 zeigte in der Periode von September 2016 bis Februar 2017 einen großen Ausbruch im Gammerstrahlenbereich: MAGIC zeichnete eine Variabilität in der Größenordnung von wenigen Stunden und die erstmalige Emission von TeV Photonen. Aus beiden untersuchten Quellen ist ersichtlich, dass die Kombination von Daten aus verschiedenen Instrumenten die physische Diskussion entscheidend beeinflusst. Der Übergang zu zugänglichen und interoperablen Daten wird zu einem zwingenden Thema für Gammastrahlenastronomen, und diese Arbeit stellt das technische Bestreben dar, standardisierte hochrangige Daten für Gammastrahleninstrumente zu erzeugen. Ein Beispiel für eine zukünftige Analyse, die einheitliche High-Level-Daten von einem Gammastrahlensatelliten und vier Cherenkov-Teleskopen kombiniert, wird vorgestellt. Der neue Ansatz, der vorgeschlagen wird, führt die Datenanalyse durch und verbreitet die Ergebnisse, wobei nur Open-Source-Ressourcen verwendet werden., Powered by the accretion of matter to a supermassive black hole, active galactic nuclei constitute the most powerful and persistent sources of radiation in the universe, with emission extending in the gamma-ray domain. The aim of this work is to characterise the mechanisms and sites beyond this highly-energetic radiation employing observations of two galaxies at hundreds of GeV, conducted with the MAGIC imaging Cherenkov telescopes. The physical interpretation is supported with observations by the Fermi Gamma-ray Space Telescope and with multi-wavelength data. Two peculiar jetted galaxies are studied: PKS 1510-089 and NGC 1275. The first source, monitored by MAGIC since 2012, presents a significant emission over tens of observation hours, in what appears to be a low but persistent gamma-ray state. The second source has instead shown, in the period between September 2016 and February 2017, a major outburst in its gamma-ray activity with variability of the order of few hours and emission of TeV photons. The broad band emission of jetted galaxies is commonly modelled with the radiative processes of a population of electrons accelerated in the jet. While PKS 1510-089 conforms to this scenario, modelling the gamma-ray outburst of NGC 1275 requires placing the acceleration and radiation of electrons close to the event horizon of the black hole. From both the sources studied it is evident that the combination of data from different instruments critically drives the physical discussuion. Moving towards accessible and interoperable data becomes a compelling issue for gamma-ray astronomers and this thesis presents the technical endeavour to produce standardised high-level data for gamma-ray instruments. An example of a future analysis combining uniformed high-level data from a gamma-ray satellite and four Cherenkov telescopes is presented. The novel approach proposed performs the data analysis and disseminates the results making use only of open-source assets.

Published
2019

21. Study of Persistent and Flaring Gamma-Ray Emission from Active Galactic Nuclei with the MAGIC Telescopes and Prospects for Future Open Data Formats in Gamma-Ray Astronomy

Author

Bernardini, Elisa, Maier, Gernot, Franceschini, Alberto, Nigro, Cosimo, Bernardini, Elisa, Maier, Gernot, Franceschini, Alberto, and Nigro, Cosimo

Abstract

Angetrieben durch die Akkretion von Materie in ein super massives Schwarzes Loch in ihrem Zentrum, stellen aktive Galaxien die stärksten und beständigsten Strahlungsquellen im Universum dar. Ihre elektromagnetische Emission kann sich bis in den Gammastrahlenbereich ausbreiten. Das Ziel dieser Arbeit ist, diese Mechanismen und die Orte jenseits der hoch energetischen Emission zu charakterisieren. Dafür werden die Observationen von zwei Aktiven Galaxien im Bereich von hunderten von GeV verwendet, welche mit den Cherenkov Teleskopen MAGIC aufgenommen wurden. Die physikalische Interpretation wird durch Beobachtungen mit dem Fermi Gamma-ray Space Teleskop und durch Multiwellenlängendaten unterstützt. Es werden zwei Aktive Galaxien mit Jet untersucht: PKS 1510-089 und NGC 1275. Die MAGIC Teleskope, welche PKS 1510-089 seit 2012 immer wieder beobachten, detektieren eine signifikante Emission über dutzende von Observationsstunden, was auf schwache aber kontinuierliche Gammastrahlung aus dieser Quelle hinweist. NGC 1275 zeigte in der Periode von September 2016 bis Februar 2017 einen großen Ausbruch im Gammerstrahlenbereich: MAGIC zeichnete eine Variabilität in der Größenordnung von wenigen Stunden und die erstmalige Emission von TeV Photonen. Aus beiden untersuchten Quellen ist ersichtlich, dass die Kombination von Daten aus verschiedenen Instrumenten die physische Diskussion entscheidend beeinflusst. Der Übergang zu zugänglichen und interoperablen Daten wird zu einem zwingenden Thema für Gammastrahlenastronomen, und diese Arbeit stellt das technische Bestreben dar, standardisierte hochrangige Daten für Gammastrahleninstrumente zu erzeugen. Ein Beispiel für eine zukünftige Analyse, die einheitliche High-Level-Daten von einem Gammastrahlensatelliten und vier Cherenkov-Teleskopen kombiniert, wird vorgestellt. Der neue Ansatz, der vorgeschlagen wird, führt die Datenanalyse durch und verbreitet die Ergebnisse, wobei nur Open-Source-Ressourcen verwendet werden., Powered by the accretion of matter to a supermassive black hole, active galactic nuclei constitute the most powerful and persistent sources of radiation in the universe, with emission extending in the gamma-ray domain. The aim of this work is to characterise the mechanisms and sites beyond this highly-energetic radiation employing observations of two galaxies at hundreds of GeV, conducted with the MAGIC imaging Cherenkov telescopes. The physical interpretation is supported with observations by the Fermi Gamma-ray Space Telescope and with multi-wavelength data. Two peculiar jetted galaxies are studied: PKS 1510-089 and NGC 1275. The first source, monitored by MAGIC since 2012, presents a significant emission over tens of observation hours, in what appears to be a low but persistent gamma-ray state. The second source has instead shown, in the period between September 2016 and February 2017, a major outburst in its gamma-ray activity with variability of the order of few hours and emission of TeV photons. The broad band emission of jetted galaxies is commonly modelled with the radiative processes of a population of electrons accelerated in the jet. While PKS 1510-089 conforms to this scenario, modelling the gamma-ray outburst of NGC 1275 requires placing the acceleration and radiation of electrons close to the event horizon of the black hole. From both the sources studied it is evident that the combination of data from different instruments critically drives the physical discussuion. Moving towards accessible and interoperable data becomes a compelling issue for gamma-ray astronomers and this thesis presents the technical endeavour to produce standardised high-level data for gamma-ray instruments. An example of a future analysis combining uniformed high-level data from a gamma-ray satellite and four Cherenkov telescopes is presented. The novel approach proposed performs the data analysis and disseminates the results making use only of open-source assets.

Published
2019

22. Gamma-ray flaring activity of NGC 1275 in 2016-2017 measured by MAGIC

Author

Ansoldi, S., Antonelli, L. A., Bednarek, W., Niedzwiecki, A., Rosillo, M. Nievas, Nigro, Cosimo, Nilsson, K., Ninci, D., Nishijima, K., Noda, K., Nogués, L., Paiano, S., Palacio, J., Bernardini, E., Paneque, D., Paoletti, R., Paredes, J. M., Pedaletti, G., Peñil, P., Peresano, M., Persic, M., Pfrang, Konstantin Johannes, Moroni, P. G. Prada, Prandini, E., Berse, R. Ch, Puljak, I., Garcia, J. R., Reichardt, I., Rhode, W., Ribó, M., Rico, J., Righi, C., Rugliancich, A., Saha, L., Saito, T., Berti, A., Satalecka, K., Schweizer, T., Sitarek, J., Šnidarić, I., Sobczynska, D., Stamerra, A., Strzys, M., Surić, T., Takahashi, M., Tavecchio, F., Bhattacharyya, W., Temnikov, P., Terzić, T., Teshima, M., Torres-Albà, N., Tsujimoto, S., Vanzo, G., Acosta, M. Vazquez, Vovk, I., Ward, J. E., Will, M., Bigongiari, C., Zarić, D., Glawion, D., Takalo, L. O., Jormanainen, J., Magic, Collaboration, Biland, A., Blanch, O., Bonnoli, G., Carosi, R., Arcaro, C., Ceribella, G., Chatterjee, A., SIDIKA MERVE COLAK, Colin, P., Colombo, E., Contreras, J. L., Cortina, J., Covino, S., Cumani, P., D Elia, V., Baack, D., Da Vela, P., Dazzi, F., Angelis, A., Lotto, B., Delfino, M., Delgado, J., Di Pierro, F., Domínguez, A., Prester, D. Dominis, Dorner, D., Babić, A., Doro, M., Einecke, S., Elsaesser, D., Ramazani, V. Fallah, Fattorini, A., Fernández-Barral, A., Ferrara, G., Fidalgo, D., Foffano, L., Fonseca, M. V., Banerjee, B., Font, L., Fruck, C., Galindo, D., Gallozzi, S., López, R. J. García, Garczarczyk, M., Gaug, M., Giammaria, P., Godinović, N., Gora, D., Bangale, P., Guberman, D., Hadasch, D., Hahn, A., Hassan, T., Hayashida, M., Herrera, J., Hoang, J., Hose, J., Hrupec, D., Ishio, K., Almeida, U. Barres, Konno, Y., Kubo, H., Kushida, J., Lamastra, A., Lelas, D., Leone, F., Lindfors, E., Lombardi, S., Longo, F., López, M., Barrio, J. A., Maggio, C., Majumdar, P., Makariev, M., Maneva, G., Manganaro, M., Mannheim, K., Maraschi, L., Mariotti, M., Martínez, M., Masuda, S., González, J. Becerra, Mazin, D., Mielke, K., Minev, M., Miranda, J. M., Mirzoyan, R., Moralejo, A., Moreno, V., Moretti, E., Nagayoshi, T., Neustroev, V., Ansoldi, S., Antonelli, L. A., Arcaro, C., Baack, D., Babić, A., Banerjee, B., Bangale, P., Barres De Almeida, U., Barrio, J. A., Becerra González, J., Bednarek, W., Bernardini, E., Berse, R. Ch., Berti, A., Bhattacharyya, W., Bigongiari, C., Biland, A., Blanch, O., Bonnoli, G., Carosi, R., Ceribella, G., Chatterjee, A., Colak, S. M., Colin, P., Colombo, E., Contreras, J. L., Cortina, J., Covino, S., Cumani, P., D'Elia, V., Da Vela, P., Dazzi, F., De Angelis, A., De Lotto, B., Delfino, M., Delgado, J., Di Pierro, F., Domínguez, A., Dominis Prester, D., Dorner, D., Doro, M., Einecke, S., Elsaesser, D., Fallah Ramazani, V., Fattorini, A., Fernández-Barral, A., Ferrara, G., Fidalgo, D., Foffano, L., Fonseca, M. V., Font, L., Fruck, C., Galindo, D., Gallozzi, S., García López, R. J., Garczarczyk, M., Gaug, M., Giammaria, P., Godinović, N., Gora, D., Guberman, D., Hadasch, D., Hahn, A., Hassan, T., Hayashida, M., Herrera, J., Hoang, J., Hose, J., Hrupec, D., Ishio, K., Konno, Y., Kubo, H., Kushida, J., Lamastra, A., Lelas, D., Leone, F., Lindfors, E., Lombardi, S., Longo, F., López, M., Maggio, C., Majumdar, P., Makariev, M., Maneva, G., Manganaro, M., Mannheim, K., Maraschi, L., Mariotti, M., Martínez, M., Masuda, S., Mazin, D., Mielke, K., Minev, M., Miranda, J. M., Mirzoyan, R., Moralejo, A., Moreno, V., Moretti, E., Nagayoshi, T., Neustroev, V., Niedzwiecki, A., Nievas Rosillo, M., Nigro, C., Nilsson, K., Ninci, D., Nishijima, K., Noda, K., Nogués, L., Paiano, S., Palacio, J., Paneque, D., Paoletti, R., Paredes, J. M., Pedaletti, G., Peñil, P., Peresano, M., Persic, M., Pfrang, K., Prada Moroni, P. G., Prandini, E., Puljak, I., Garcia, J. R., Reichardt, I., Rhode, W., Ribó, M., Rico, J., Righi, C., Rugliancich, A., Saha, L., Saito, T., Satalecka, K., Schweizer, T., Sitarek, J., Šnidarić, I., Sobczynska, D., Stamerra, A., Strzys, M., Surić, T., Takahashi, M., Tavecchio, F., Temnikov, P., Terzić, T., Teshima, M., Torres-Albà, N., Tsujimoto, S., Vanzo, G., Vazquez Acosta, M., Vovk, I., Ward, J. E., Will, M., Zarić, D., Glawion, D., Takalo, L. O., and Jormanainen, J.

Subjects
Galaxies: active, Galaxies: individual: NGC 1275, Galaxies: jets, Gamma rays: galaxies, Astronomy and Astrophysics, Space and Planetary Science, Radio galaxy, Astrophysics::High Energy Astrophysical Phenomena, galaxies: active, jets [galaxies], FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, jet [Galaxies], law.invention, law, 0103 physical sciences, gamma rays: galaxies, MAGIC (telescope), 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), galaxies: jets, galaxies: individual: NGC 1275, galaxie [Gamma rays], 010308 nuclear & particles physics, Gamma ray, Astronomy and Astrophysic, Light curve, Monitoring program, Black hole, Crab Nebula, 13. Climate action, active [galaxies], galaxies [gamma rays], ddc:520, Física nuclear, Astrophysics - High Energy Astrophysical Phenomena, individual: NGC 1275 [galaxies], Flare
Abstract

We report on the detection of flaring activity from the Fanaroff-Riley I radio galaxy NGC 1275 in very-high-energy (VHE, E $>$ 100 GeV) gamma rays with the MAGIC telescopes. Observations were performed between 2016 September and 2017 February as part of a monitoring program. The brightest outburst with $\sim1.5$ times the Crab Nebula flux above 100 GeV (C.U.) was observed during the night between 2016 December 31 and 2017 January 1 (fifty times higher than the mean previously measured in two observational campaigns between 2009 and 2011). Significant variability of the day-by-day light curve was measured, the shortest flux-doubling time-scales was found to be of $(611\pm101)$ min. The combined spectrum of the MAGIC data during the strongest flare state and simultaneous data from the Fermi-LAT around 2017 January 1 follows a power-law with an exponential cutoff at the energy $(492\pm35)$ GeV. Simultaneous optical flux density measurements in the R-band obtained with the KVA telescope are also presented and the correlation between the optical and gamma-ray emission is investigated. Due to possible internal pair-production, the fast flux variability constrains the Doppler factor to values which are inconsistent with a large viewing angle as observed in the radio band. We investigate different scenarios for the explanation of fast gamma-ray variability, namely emission from: magnetospheric gaps, relativistic blobs propagating in the jet (mini-jets) or external cloud (or star) entering the jet. We find that the only plausible model to account for the luminosities here observed would be the production of gamma rays in a magnetospheric gap around the central black hole only in the eventuality of an enhancement of the magnetic field threading the hole from its equipartition value with the gas pressure in the accretion flow., accepted for publications in Astronomy and Astrophysics

Published
2018
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23. The blazar TXS 0506+056 associated with a high-energy neutrino: insights into extragalactic jets and cosmic ray acceleration

Author

Ansoldi, S., Antonelli, L. A., Antonelli, Lucio Angelo, Arcaro, Cornelia, Baack, Dominik, Babić, Ana, Banerjee, Biswajit, Bangale, Priyadarshini, Barres De Almeida, Ulisses, Barrio, Juan Abel, Becerra González, Josefa, Bednarek, Wlodek, Bernardini, Elisa, Berti, Alessio, Bhattacharyya, Wrijupan, Biland, Adrian, Blanch, Oscar, Bonnoli, Giacomo, Carosi, Roberto, Carosi, Alessandro, Ceribella, Giovanni, Chatterjee, Anshu, Colak, Sidika Merve, Colin, Pierre, Colombo, Eduardo, Contreras, Jose Luis, Cortina, Juan, Covino, Stefano, Cumani, Paolo, Da Vela, Paolo, Dazzi, Francesco, De Angelis, Alessandro, De Lotto, Barbara, Delfino, Manuel, Delgado, Jordi, Di Pierro, Federico, Domínguez, Alberto, Dominis Prester, Dijana, Dorner, Daniela, Doro, Michele, Einecke, Sabrina, Elsaesser, Dominik, Fallah Ramazani, Vandad, Fernández-Barral, Alba, Fidalgo, David, Foffano, Luca, Pfrang, Konstantin, Fonseca, Maria Victoria, Font, Lluis, Fruck, Christian, Galindo, Daniel, Gallozzi, Stefano, López, Ramon J. García, Garczarczyk, Markus, Gaug, Markus, Giammaria, Paola, Godinović, Nikola, Gora, Dariusz, Guberman, Daniel, Hadasch, Daniela, Hahn, Alexander, Hassan, Tarek, Hayashida, Masaaki, Herrera, Javier, Hose, Juergen, Hrupec, Dario, Inoue, Susumu, Ishio, Kazuma, Iwamura, Yuki, Konno, Yusuke, Kubo, Hidetoshi, Kushida, Junko, Lelas, Damir, Lindfors, Elina, Lombardi, Saverio, Longo, Francesco, López, Marcos, Maggio, Camilla, Majumdar, Pratik, Makariev, Martin, Maneva, Galina, Manganaro, Marina, Mannheim, Karl, Maraschi, Laura, Mariotti, Mosé, Martínez, Manel, Masuda, Shu, Mazin, Daniel, Minev, Milen, Miranda, Jose Miguel, Mirzoyan, Razmik, Moralejo, Abelardo, Moreno, Victoria, Moretti, Elena, Nagayoshi, Tsutomu, Neustroev, Vitaly, Niedzwiecki, Andrzej, Nievas Rosillo, Mireia, Nigro, Cosimo, Nilsson, Kari, Ninci, Daniele, Nishijima, Kyoshi, Noda, Koji, Nogués, Leyre, Paiano, Simona, Palacio, Joaquim, Paneque, David, Paoletti, Riccardo, Paredes, Josep M., Pedaletti, Giovanna, Peresano, Michele, Persic, Massimo, Prada Moroni, Pier Giorgio, Prandini, Elisa, Puljak, Ivica, Rodriguez Garcia, Jezabel, Reichardt, Ignasi, Rhode, Wolfgang, Ribó, Marc, Rico, Javier, Righi, Chiara, Rugliancich, Andrea, Saito, Takayuki, Satalecka, Konstancja, Schweizer, Thomas, Sitarek, Julian, Snidarić, Iva, Sobczynska, Dorota, Stamerra, Antonio, Strzys, Marcel, Surić, Tihomir, Takahashi, Mitsunari, Tavecchio, Fabrizio, Temnikov, Petar, Terzić, Tomislav, Teshima, Masahiro, Torres-Albà, Nuria, Treves, Aldo, Tsujimoto, Shimpei, Vanzo, Gaia, Vazquez Acosta, Monica, Vovk, Ievgen, Ward, John E., Will, Martin, Zarić, Darko, and Cerruti, Matteo

Subjects
neutrino: energy: high, photon, MAGIC, VHE, blazar, X-ray, messenger, electromagnetic, p: energy, Compton scattering: inverse, gamma ray, electron: interaction, cosmic radiation: acceleration, absorption, plasma
Abstract

The astrophysical journal 863(1), L10 (2018). doi:10.3847/2041-8213/aad083, A neutrino with energy ∼290 TeV, IceCube-170922A, was detected in coincidence with the BL Lac object TXS 0506+056 during enhanced gamma-ray activity, with chance coincidence being rejected at ∼3σ level. We monitored the object in the very-high-energy (VHE) band with the Major Atmospheric Gamma-ray Imaging Cherenkov (MAGIC) telescopes for ∼41 hr from 1.3 to 40.4 days after the neutrino detection. Day-timescale variability is clearly resolved. We interpret the quasi-simultaneous neutrino and broadband electromagnetic observations with a novel one-zone lepto-hadronic model, based on interactions of electrons and protons co-accelerated in the jet with external photons originating from a slow-moving plasma sheath surrounding the faster jet spine. We can reproduce the multiwavelength spectra of TXS 0506+056 with neutrino rate and energy compatible with IceCube-170922A, and with plausible values for the jet power of $\sim 10^{45} - 4 \times 10^{46} erg s^{-1}$. The steep spectrum observed by MAGIC is concordant with internal γγ absorption above ∼100 GeV entailed by photohadronic production of a ∼290 TeV neutrino, corroborating a genuine connection between the multi-messenger signals. In contrast to previous predictions of predominantly hadronic emission from neutrino sources, the gamma-rays can be mostly ascribed to inverse Compton upscattering of external photons by accelerated electrons. The X-ray and VHE bands provide crucial constraints on the emission from both accelerated electrons and protons. We infer that the maximum energy of protons in the jet comoving frame can be in the range $∼10^{14} – 10^{18}$ eV., Published by IOP, Chicago, Ill. [u.a.]

Published
2018
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25. Towards Multi-Instrument and ReproducibleGamma-Ray Analysis

Author

Bruegge, K, primary, Nigro, Cosimo, additional, Deil, Christoph, additional, Zanin, Roberta, additional, Hassan, Tarek, additional, King, Johannes, additional, Ruiz, José Enrique, additional, Saha, Lab, additional, Terrier, Regis, additional, Nöthe, Maximilian, additional, Bird, Ralph, additional, Lin, T.T.Y, additional, Aleksic, Jelena, additional, Boisson, Catherine, additional, Contreras, Jose Luis, additional, Donath, Axel, additional, Jouvin, Léa, additional, Rico, Javier, additional, Kosack, Karl, additional, Khelifi, Bruno, additional, Sinha, Atreyee, additional, and Kelley-Hoskins, Nathan, additional

Published
2019
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26. Gamma-ray flaring activity of NGC 1275 in 2016-2017 measured by MAGIC

Author

Ansoldi, S., Antonelli, L. A., Arcaro, C., Baack, D., Babić, A., Banerjee, B., Bangale, P., De Almeida, U. Barres, Barrio, J. A., González, J. Becerra, Bednarek, W., Bernardini, E., Berse, R. Ch., Berti, A., Bhattacharyya, W., Bigongiari, C., Biland, A., Blanch, O., Bonnoli, G., Carosi, R., Ceribella, G., Chatterjee, A., Colak, S. M., Colin, P., Colombo, E., Contreras, J. L., Cortina, J., Covino, S., Cumani, P., D'Elia, V., Da Vela, P., Dazzi, F., De Angelis, A., De Lotto, B., Delfino, M., Delgado, J., Di Pierro, F., Domínguez, A., Prester, D. Dominis, Dorner, D., Doro, M., Einecke, S., Elsaesser, D., Ramazani, V. Fallah, Fattorini, A., Fernández-Barral, A., Ferrara, G., Fidalgo, D., Foffano, L., Fonseca, M. V., Font, L., Fruck, C., Galindo, D., Gallozzi, S., López, R. J. García, Garczarczyk, M., Gaug, M., Giammaria, P., Godinović, N., Gora, D., Guberman, D., Hadasch, D., Hahn, A., Hassan, T., Hayashida, M., Herrera, J., Hoang, J., Hose, J., Hrupec, D., Ishio, K., Konno, Y., Kubo, H., Kushida, J., Lamastra, A., Lelas, D., Leone, F., Lindfors, E., Lombardi, S., Longo, F., López, M., Maggio, C., Majumdar, P., Makariev, M., Maneva, G., Manganaro, M., Mannheim, K., Maraschi, L., Mariotti, M., Martínez, M., Masuda, S., Mazin, D., Mielke, K., Minev, M., Miranda, J. M., Mirzoyan, R., Moralejo, A., Moreno, V., Moretti, E., Nagayoshi, T., Neustroev, V., Niedzwiecki, A., Rosillo, M. Nievas, Nigro, Cosimo, Nilsson, K., Ninci, D., Nishijima, K., Noda, K., Nogués, L., Paiano, S., Palacio, J., Paneque, D., Paoletti, R., Paredes, J. M., Pedaletti, G., Peñil, P., Peresano, M., Persic, M., Pfrang, Konstantin Johannes, Moroni, P. G. Prada, Prandini, E., Puljak, I., Garcia, J. R., Reichardt, I., Rhode, W., Ribó, M., Rico, J., Righi, C., Rugliancich, A., Saha, L., Saito, T., Satalecka, K., Schweizer, T., Sitarek, J., Šnidarić, I., Sobczynska, D., Stamerra, A., Strzys, M., Surić, T., Takahashi, M., Tavecchio, F., Temnikov, P., Terzić, T., Teshima, M., Torres-Albà, N., Tsujimoto, S., Vanzo, G., Acosta, M. Vazquez, Vovk, I., Ward, J. E., Will, M., Zarić, D., Glawion, D., Takalo, L. O., and Jormanainen, J.

Subjects
13. Climate action
Abstract

Astronomy and astrophysics 617, A91 (2018). doi:10.1051/0004-6361/201832895, We report on the detection of flaring activity from the Fanaroff-Riley I radio galaxy NGC 1275 in very-high-energy (VHE, E $>$ 100 GeV) gamma rays with the MAGIC telescopes. Observations were performed between 2016 September and 2017 February as part of a monitoring program. The brightest outburst with $\sim1.5$ times the Crab Nebula flux above 100 GeV (C.U.) was observed during the night between 2016 December 31 and 2017 January 1 (fifty times higher than the mean previously measured in two observational campaigns between 2009 and 2011). Significant variability of the day-by-day light curve was measured, the shortest flux-doubling time-scales was found to be of $(611\pm101)$ min. The combined spectrum of the MAGIC data during the strongest flare state and simultaneous data from the Fermi-LAT around 2017 January 1 follows a power-law with an exponential cutoff at the energy $(492\pm35)$ GeV. Simultaneous optical flux density measurements in the R-band obtained with the KVA telescope are also presented and the correlation between the optical and gamma-ray emission is investigated. Due to possible internal pair-production, the fast flux variability constrains the Doppler factor to values which are inconsistent with a large viewing angle as observed in the radio band. We investigate different scenarios for the explanation of fast gamma-ray variability, namely emission from: magnetospheric gaps, relativistic blobs propagating in the jet (mini-jets) or external cloud (or star) entering the jet. We find that the only plausible model to account for the luminosities here observed would be the production of gamma rays in a magnetospheric gap around the central black hole only in the eventuality of an enhancement of the magnetic field threading the hole from its equipartition value with the gas pressure in the accretion flow., Published by EDP Sciences, Les Ulis

27. Teraelectronvolt emission from the γ-ray burst GRB 190114C

Author

Bernardini, Elisa, Bhattacharya, Biswajit, Garczarczyk, Markus, Nigro, Cosimo, Satalecka, Konstancja, and MAGIC Collaboration

Subjects
13. Climate action, 7. Clean energy
Abstract

Nature / Physical science 575(7783), 455 - 458 (2019). doi:10.1038/s41586-019-1750-x, Long-duration γ-ray bursts (GRBs) are the most luminous sources of electromagnetic radiation known in the Universe. They arise from outflows of plasma with velocities near the speed of light that are ejected by newly formed neutron stars or black holes (of stellar mass) at cosmological distances1,2. Prompt flashes of megaelectronvolt-energy γ-rays are followed by a longer-lasting afterglow emission in a wide range of energies (from radio waves to gigaelectronvolt γ-rays), which originates from synchrotron radiation generated by energetic electrons in the accompanying shock waves3,4. Although emission of γ-rays at even higher (teraelectronvolt) energies by other radiation mechanisms has been theoretically predicted5,6,7,8, it has not been previously detected7,8. Here we report observations of teraelectronvolt emission from the γ-ray burst GRB 190114C. γ-rays were observed in the energy range 0.2–1 teraelectronvolt from about one minute after the burst (at more than 50 standard deviations in the first 20 minutes), revealing a distinct emission component of the afterglow with power comparable to that of the synchrotron component. The observed similarity in the radiated power and temporal behaviour of the teraelectronvolt and X-ray bands points to processes such as inverse Compton upscattering as the mechanism of the teraelectronvolt emission9,10,11. By contrast, processes such as synchrotron emission by ultrahigh-energy protons10,12,13 are not favoured because of their low radiative efficiency. These results are anticipated to be a step towards a deeper understanding of the physics of GRBs and relativistic shock waves., Published by Macmillan28177, London

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