Search

Your search keyword '"Molaverdikhani, Karan"' showing total 122 results
Start Over Author "Molaverdikhani, Karan"

Refine your results

more »

more »

more »

more »
122 results on '"Molaverdikhani, Karan"'

103. PEPSI exoplanet transit survey (PETS) I: investigating the presence of a silicate atmosphere on the super-earth 55 Cnc e.

Author

Keles, Engin, Mallonn, Matthias, Kitzmann, Daniel, Poppenhaeger, Katja, Hoeijmakers, H Jens, Ilyin, Ilya, Alexoudi, Xanthippi, Carroll, Thorsten A, Alvarado-Gomez, Julian, Ketzer, Laura, Bonomo, Aldo S, Borsa, Francesco, Gaudi, B Scott, Henning, Thomas, Malavolta, Luca, Molaverdikhani, Karan, Nascimbeni, Valerio, Patience, Jennifer, Pino, Lorenzo, and Scandariato, Gaetano

Subjects
ABSORPTION spectra, PLANETARY observations, NATURAL satellite atmospheres, ATMOSPHERE, ASTRONOMICAL transits
Abstract

The study of exoplanets and especially their atmospheres can reveal key insights on their evolution by identifying specific atmospheric species. For such atmospheric investigations, high-resolution transmission spectroscopy has shown great success, especially for Jupiter-type planets. Towards the atmospheric characterization of smaller planets, the super-Earth exoplanet 55 Cnc e is one of the most promising terrestrial exoplanets studied to date. Here, we present a high-resolution spectroscopic transit observation of this planet, acquired with the PEPSI instrument at the Large Binocular Telescope. Assuming the presence of Earth-like crust species on the surface of 55 Cnc e, from which a possible silicate-vapor atmosphere could have originated, we search in its transmission spectrum for absorption of various atomic and ionized species such as Fe , Fe +, Ca , Ca +, Mg, and K , among others. Not finding absorption for any of the investigated species, we are able to set absorption limits with a median value of 1.9 × RP. In conclusion, we do not find evidence of a widely extended silicate envelope on this super-Earth reaching several planetary radii. [ABSTRACT FROM AUTHOR]

Published
2022
Full Text
View/download PDF

104. Characterization of Planetary Atmospheres

Author

Molaverdikhani, Karan

Subjects
540 Chemistry and allied sciences, 530 Physics, 520 Astronomy and allied sciences
Abstract

After the discovery of the first exoplanet in 1990’s and a fast growing number of discoveries since then, there have been many attempts to observe and characterize their atmospheres. In particular, water and methane have been the focus of many investigations due to their relevance to the origin of life and habitability, as well as their major roles to shape the structure of planetary atmospheres. Abundances retrieved for these species can be also used as a tracer of carbon-to-oxygen ratio (C/O) and metallicity of these atmospheres; hence potentially linking the formation scenarios with the observations. Water’s spectral signature is everywhere, but despite many efforts, there has been only one robust detection of methane and only recently. The question is, “where is methane?”. By applying a hierarchical modelling approach (utilising more than 177,000 thermochemical equilibrium cloud-free, disequilibrium cloud-free, and thermochemical equilibrium cloudy models) we predict that there are four classes of irradiated gaseous planets; two of them (Class-I and Class-II; Teff

Published
2020

105. Ariel: Enabling planetary science across light-years

Author

Tinetti, Giovanna, Eccleston, Paul, Haswell, Carole, Lagage, Pierre-Olivier, Leconte, Jérémy, Lüftinger, Theresa, Micela, Giusi, Min, Michel, Pilbratt, Göran, Puig, Ludovic, Swain, Mark, Testi, Leonardo, Turrini, Diego, Vandenbussche, Bart, Osorio, Maria Rosa Zapatero, Aret, Anna, Beaulieu, Jean-Philippe, Buchhave, Lars, Ferus, Martin, Griffin, Matt, Guedel, Manuel, Hartogh, Paul, Machado, Pedro, Malaguti, Giuseppe, Pallé, Enric, Rataj, Mirek, Ray, Tom, Ribas, Ignasi, Szabó, Robert, Tan, Jonathan, Werner, Stephanie, Ratti, Francesco, Scharmberg, Carsten, Salvignol, Jean-Christophe, Boudin, Nathalie, Halain, Jean-Philippe, Haag, Martin, Crouzet, Pierre-Elie, Kohley, Ralf, Symonds, Kate, Renk, Florian, Caldwell, Andrew, Abreu, Manuel, Alonso, Gustavo, Amiaux, Jerome, Berthé, Michel, Bishop, Georgia, Bowles, Neil, Carmona, Manuel, Coffey, Deirdre, Colomé, Josep, Crook, Martin, Désjonqueres, Lucile, Díaz, José J., Drummond, Rachel, Focardi, Mauro, Gómez, Jose M., Holmes, Warren, Krijger, Matthijs, Kovacs, Zsolt, Hunt, Tom, Machado, Richardo, Morgante, Gianluca, Ollivier, Marc, Ottensamer, Roland, Pace, Emanuele, Pagano, Teresa, Pascale, Enzo, Pearson, Chris, Pedersen, Søren Møller, Pniel, Moshe, Roose, Stéphane, Savini, Giorgio, Stamper, Richard, Szirovicza, Peter, Szoke, Janos, Tosh, Ian, Vilardell, Francesc, Barstow, Joanna, Borsato, Luca, Casewell, Sarah, Changeat, Quentin, Charnay, Benjamin, Civiš, Svatopluk, Foresto, Vincent Coudé du, Coustenis, Athena, Cowan, Nicolas, Danielski, Camilla, Demangeon, Olivier, Drossart, Pierre, Edwards, Billy N., Gilli, Gabriella, Encrenaz, Therese, Kiss, Csaba, Kokori, Anastasia, Ikoma, Masahiro, Morales, Juan Carlos, Mendonça, João, Moneti, Andrea, Mugnai, Lorenzo, Muñoz, Antonio García, Helled, Ravit, Kama, Mihkel, Miguel, Yamila, Nikolaou, Nikos, Pagano, Isabella, Panic, Olja, Rengel, Miriam, Rickman, Hans, Rocchetto, Marco, Sarkar, Subhajit, Selsis, Franck, Tennyson, Jonathan, Tsiaras, Angelos, Venot, Olivia, Vida, Krisztián, Waldmann, Ingo P., Yurchenko, Sergey, Szabó, Gyula, Zellem, Rob, Al-Refaie, Ahmed, Alvarez, Javier Perez, Anisman, Lara, Arhancet, Axel, Ateca, Jaume, Baeyens, Robin, Barnes, John R., Bell, Taylor, Benatti, Serena, Biazzo, Katia, Błęcka, Maria, Bonomo, Aldo Stefano, Bosch, José, Bossini, Diego, Bourgalais, Jeremy, Brienza, Daniele, Brucalassi, Anna, Bruno, Giovanni, Caines, Hamish, Calcutt, Simon, Campante, Tiago, Canestrari, Rodolfo, Cann, Nick, Casali, Giada, Casas, Albert, Cassone, Giuseppe, Cara, Christophe, Carone, Ludmila, Carrasco, Nathalie, Chioetto, Paolo, Cortecchia, Fausto, Czupalla, Markus, Chubb, Katy L., Ciaravella, Angela, Claret, Antonio, Claudi, Riccardo, Codella, Claudio, Comas, Maya Garcia, Cracchiolo, Gianluca, Cubillos, Patricio, Peppo, Vania Da, Decin, Leen, Dejabrun, Clemence, Delgado-Mena, Elisa, Giorgio, Anna Di, Diolaiti, Emiliano, Dorn, Caroline, Doublier, Vanessa, Doumayrou, Eric, Dransfield, Georgina, Dumaye, Luc, Dunford, Emma, Escobar, Antonio Jimenez, Eylen, Vincent Van, Farina, Maria, Fedele, Davide, Fernández, Alejandro, Fleury, Benjamin, Fonte, Sergio, Fontignie, Jean, Fossati, Luca, Funke, Bernd, Galy, Camille, Garai, Zoltán, García, Andrés, García-Rigo, Alberto, Garufi, Antonio, Sacco, Giuseppe Germano, Giacobbe, Paolo, Gómez, Alejandro, Gonzalez, Arturo, Gonzalez-Galindo, Francisco, Grassi, Davide, Griffith, Caitlin, Guarcello, Mario Giuseppe, Goujon, Audrey, Gressier, Amélie, Grzegorczyk, Aleksandra, Guillot, Tristan, Guilluy, Gloria, Hargrave, Peter, Hellin, Marie-Laure, Herrero, Enrique, Hills, Matt, Horeau, Benoit, Ito, Yuichi, Jessen, Niels Christian, Kabath, Petr, Kálmán, Szilárd, Kawashima, Yui, Kimura, Tadahiro, Knížek, Antonín, Kreidberg, Laura, Kruid, Ronald, Kruijssen, Diederik J. M., Kubelík, Petr, Lara, Luisa, Lebonnois, Sebastien, Lee, David, Lefevre, Maxence, Lichtenberg, Tim, Locci, Daniele, Lombini, Matteo, Lopez, Alejandro Sanchez, Lorenzani, Andrea, MacDonald, Ryan, Magrini, Laura, Maldonado, Jesus, Marcq, Emmanuel, Migliorini, Alessandra, Modirrousta-Galian, Darius, Molaverdikhani, Karan, Molinari, Sergio, Mollière, Paul, Moreau, Vincent, Morello, Giuseppe, Morinaud, Gilles, Morvan, Mario, Moses, Julianne I., Mouzali, Salima, Nakhjiri, Nariman, Naponiello, Luca, Narita, Norio, Nascimbeni, Valerio, Nikolaou, Athanasia, Noce, Vladimiro, Oliva, Fabrizio, Palladino, Pietro, Papageorgiou, Andreas, Parmentier, Vivien, Peres, Giovanni, Pérez, Javier, Perez-Hoyos, Santiago, Perger, Manuel, Pestellini, Cesare Cecchi, Petralia, Antonino, Philippon, Anne, Piccialli, Arianna, Pignatari, Marco, Piotto, Giampaolo, Podio, Linda, Polenta, Gianluca, Preti, Giampaolo, Pribulla, Theodor, Puertas, Manuel Lopez, Rainer, Monica, Reess, Jean-Michel, Rimmer, Paul, Robert, Séverine, Rosich, Albert, Rossi, Loic, Rust, Duncan, Saleh, Ayman, Sanna, Nicoletta, Schisano, Eugenio, Schreiber, Laura, Schwartz, Victor, Scippa, Antonio, Seli, Bálint, Shibata, Sho, Simpson, Caroline, Shorttle, Oliver, Skaf, N., Skup, Konrad, Sobiecki, Mateusz, Sousa, Sergio, Sozzetti, Alessandro, Šponer, Judit, Steiger, Lukas, Tanga, Paolo, Tackley, Paul, Taylor, Jake, Tecza, Matthias, Terenzi, Luca, Tremblin, Pascal, Tozzi, Andrea, Triaud, Amaury, Trompet, Loïc, Tsai, Shang-Min, Tsantaki, Maria, Valencia, Diana, Vandaele, Ann Carine, Swaelmen, Mathieu Van der, Vardan, Adibekyan, Vasisht, Gautam, Vazan, Allona, Vecchio, Ciro Del, Waltham, Dave, Wawer, Piotr, Widemann, Thomas, Wolkenberg, Paulina, Yip, Gordon Hou, Yung, Yuk, Zilinskas, Mantas, Zingales, Tiziano, Zuppella, Paola, Tinetti, Giovanna, Eccleston, Paul, Haswell, Carole, Lagage, Pierre-Olivier, Leconte, Jérémy, Lüftinger, Theresa, Micela, Giusi, Min, Michel, Pilbratt, Göran, Puig, Ludovic, Swain, Mark, Testi, Leonardo, Turrini, Diego, Vandenbussche, Bart, Osorio, Maria Rosa Zapatero, Aret, Anna, Beaulieu, Jean-Philippe, Buchhave, Lars, Ferus, Martin, Griffin, Matt, Guedel, Manuel, Hartogh, Paul, Machado, Pedro, Malaguti, Giuseppe, Pallé, Enric, Rataj, Mirek, Ray, Tom, Ribas, Ignasi, Szabó, Robert, Tan, Jonathan, Werner, Stephanie, Ratti, Francesco, Scharmberg, Carsten, Salvignol, Jean-Christophe, Boudin, Nathalie, Halain, Jean-Philippe, Haag, Martin, Crouzet, Pierre-Elie, Kohley, Ralf, Symonds, Kate, Renk, Florian, Caldwell, Andrew, Abreu, Manuel, Alonso, Gustavo, Amiaux, Jerome, Berthé, Michel, Bishop, Georgia, Bowles, Neil, Carmona, Manuel, Coffey, Deirdre, Colomé, Josep, Crook, Martin, Désjonqueres, Lucile, Díaz, José J., Drummond, Rachel, Focardi, Mauro, Gómez, Jose M., Holmes, Warren, Krijger, Matthijs, Kovacs, Zsolt, Hunt, Tom, Machado, Richardo, Morgante, Gianluca, Ollivier, Marc, Ottensamer, Roland, Pace, Emanuele, Pagano, Teresa, Pascale, Enzo, Pearson, Chris, Pedersen, Søren Møller, Pniel, Moshe, Roose, Stéphane, Savini, Giorgio, Stamper, Richard, Szirovicza, Peter, Szoke, Janos, Tosh, Ian, Vilardell, Francesc, Barstow, Joanna, Borsato, Luca, Casewell, Sarah, Changeat, Quentin, Charnay, Benjamin, Civiš, Svatopluk, Foresto, Vincent Coudé du, Coustenis, Athena, Cowan, Nicolas, Danielski, Camilla, Demangeon, Olivier, Drossart, Pierre, Edwards, Billy N., Gilli, Gabriella, Encrenaz, Therese, Kiss, Csaba, Kokori, Anastasia, Ikoma, Masahiro, Morales, Juan Carlos, Mendonça, João, Moneti, Andrea, Mugnai, Lorenzo, Muñoz, Antonio García, Helled, Ravit, Kama, Mihkel, Miguel, Yamila, Nikolaou, Nikos, Pagano, Isabella, Panic, Olja, Rengel, Miriam, Rickman, Hans, Rocchetto, Marco, Sarkar, Subhajit, Selsis, Franck, Tennyson, Jonathan, Tsiaras, Angelos, Venot, Olivia, Vida, Krisztián, Waldmann, Ingo P., Yurchenko, Sergey, Szabó, Gyula, Zellem, Rob, Al-Refaie, Ahmed, Alvarez, Javier Perez, Anisman, Lara, Arhancet, Axel, Ateca, Jaume, Baeyens, Robin, Barnes, John R., Bell, Taylor, Benatti, Serena, Biazzo, Katia, Błęcka, Maria, Bonomo, Aldo Stefano, Bosch, José, Bossini, Diego, Bourgalais, Jeremy, Brienza, Daniele, Brucalassi, Anna, Bruno, Giovanni, Caines, Hamish, Calcutt, Simon, Campante, Tiago, Canestrari, Rodolfo, Cann, Nick, Casali, Giada, Casas, Albert, Cassone, Giuseppe, Cara, Christophe, Carone, Ludmila, Carrasco, Nathalie, Chioetto, Paolo, Cortecchia, Fausto, Czupalla, Markus, Chubb, Katy L., Ciaravella, Angela, Claret, Antonio, Claudi, Riccardo, Codella, Claudio, Comas, Maya Garcia, Cracchiolo, Gianluca, Cubillos, Patricio, Peppo, Vania Da, Decin, Leen, Dejabrun, Clemence, Delgado-Mena, Elisa, Giorgio, Anna Di, Diolaiti, Emiliano, Dorn, Caroline, Doublier, Vanessa, Doumayrou, Eric, Dransfield, Georgina, Dumaye, Luc, Dunford, Emma, Escobar, Antonio Jimenez, Eylen, Vincent Van, Farina, Maria, Fedele, Davide, Fernández, Alejandro, Fleury, Benjamin, Fonte, Sergio, Fontignie, Jean, Fossati, Luca, Funke, Bernd, Galy, Camille, Garai, Zoltán, García, Andrés, García-Rigo, Alberto, Garufi, Antonio, Sacco, Giuseppe Germano, Giacobbe, Paolo, Gómez, Alejandro, Gonzalez, Arturo, Gonzalez-Galindo, Francisco, Grassi, Davide, Griffith, Caitlin, Guarcello, Mario Giuseppe, Goujon, Audrey, Gressier, Amélie, Grzegorczyk, Aleksandra, Guillot, Tristan, Guilluy, Gloria, Hargrave, Peter, Hellin, Marie-Laure, Herrero, Enrique, Hills, Matt, Horeau, Benoit, Ito, Yuichi, Jessen, Niels Christian, Kabath, Petr, Kálmán, Szilárd, Kawashima, Yui, Kimura, Tadahiro, Knížek, Antonín, Kreidberg, Laura, Kruid, Ronald, Kruijssen, Diederik J. M., Kubelík, Petr, Lara, Luisa, Lebonnois, Sebastien, Lee, David, Lefevre, Maxence, Lichtenberg, Tim, Locci, Daniele, Lombini, Matteo, Lopez, Alejandro Sanchez, Lorenzani, Andrea, MacDonald, Ryan, Magrini, Laura, Maldonado, Jesus, Marcq, Emmanuel, Migliorini, Alessandra, Modirrousta-Galian, Darius, Molaverdikhani, Karan, Molinari, Sergio, Mollière, Paul, Moreau, Vincent, Morello, Giuseppe, Morinaud, Gilles, Morvan, Mario, Moses, Julianne I., Mouzali, Salima, Nakhjiri, Nariman, Naponiello, Luca, Narita, Norio, Nascimbeni, Valerio, Nikolaou, Athanasia, Noce, Vladimiro, Oliva, Fabrizio, Palladino, Pietro, Papageorgiou, Andreas, Parmentier, Vivien, Peres, Giovanni, Pérez, Javier, Perez-Hoyos, Santiago, Perger, Manuel, Pestellini, Cesare Cecchi, Petralia, Antonino, Philippon, Anne, Piccialli, Arianna, Pignatari, Marco, Piotto, Giampaolo, Podio, Linda, Polenta, Gianluca, Preti, Giampaolo, Pribulla, Theodor, Puertas, Manuel Lopez, Rainer, Monica, Reess, Jean-Michel, Rimmer, Paul, Robert, Séverine, Rosich, Albert, Rossi, Loic, Rust, Duncan, Saleh, Ayman, Sanna, Nicoletta, Schisano, Eugenio, Schreiber, Laura, Schwartz, Victor, Scippa, Antonio, Seli, Bálint, Shibata, Sho, Simpson, Caroline, Shorttle, Oliver, Skaf, N., Skup, Konrad, Sobiecki, Mateusz, Sousa, Sergio, Sozzetti, Alessandro, Šponer, Judit, Steiger, Lukas, Tanga, Paolo, Tackley, Paul, Taylor, Jake, Tecza, Matthias, Terenzi, Luca, Tremblin, Pascal, Tozzi, Andrea, Triaud, Amaury, Trompet, Loïc, Tsai, Shang-Min, Tsantaki, Maria, Valencia, Diana, Vandaele, Ann Carine, Swaelmen, Mathieu Van der, Vardan, Adibekyan, Vasisht, Gautam, Vazan, Allona, Vecchio, Ciro Del, Waltham, Dave, Wawer, Piotr, Widemann, Thomas, Wolkenberg, Paulina, Yip, Gordon Hou, Yung, Yuk, Zilinskas, Mantas, Zingales, Tiziano, and Zuppella, Paola

Abstract

The concept of a mission devoted to atmospheric characterization of exoplanets through transit spectroscopy was first considered in Europe in 2007, shortly after the DARWIN proposal submitted to ESA for the first Cosmic Vision call for L-class missions was rejected because of the need for further scientific and technical developments. Following the decision, both ESA (EP-RAT panel report, October 2010) and the Exoplanetary Community (Blue Dot Team – Barcelona conference, September 2009) started a discussion to define a roadmap for exoplanetary research. Both groups concluded that an intermediate step was needed, both scientifically and technically, before the characterisation of Earth-like planets could be tackled, and recommended a transit spectroscopy mission as a first step to atmospheric characterisation. A short study was undertaken at ESTEC in the context of the ExoPlanet Roadmap Advisory Team mandate under the name ESM (Exoplanet Spectroscopy Mission). Following this study the Exoplanet Characterisation Observatory (EChO) was proposed and accepted for assessment phase study in the context of the ESA Cosmic Vision 2015-2025 programme M3 medium class mission opportunity. Although eventually not selected, the EChO study1 allowed further development of the technical building blocks and the science case for an eventual transit spectroscopy mission. In response to the call for the next medium class opportunity, Cosmic Vision M4, a proposal was submitted in January 2015: the Atmospheric Remote-sensing InfraRed Large-survey (ARIEL). The mission was one of the three selected in June 2015 for study in a Phase 0/A, a competitive assessment phase2. ARIEL was eventually selected as M4 in March 2018, and went into Phase B1, the definition study phase. The name of the mission has been changed to Ariel after selection. During Phase B1, the science case was studied in depth and consolidated under auspices of the Science Advisory Team, the bulk of the work be

Published
2020

106. EDEN: Sensitivity Analysis and Transiting Planet Detection Limits for Nearby Late Red Dwarfs

Author

Gibbs, Aidan, primary, Bixel, Alex, additional, Rackham, Benjamin V., additional, Apai, Dániel, additional, Schlecker, Martin, additional, Espinoza, Néstor, additional, Mancini, Luigi, additional, Chen, Wen-Ping, additional, Henning, Thomas, additional, Gabor, Paul, additional, Boyle, Richard, additional, Perez Chavez, Jose, additional, Mousseau, Allie, additional, Dietrich, Jeremy, additional, Jay Socia, Quentin, additional, Ip, Wing, additional, Ngeow, Chow-Choong, additional, Tsai, An-Li, additional, Bhandare, Asmita, additional, Marian, Victor, additional, Baehr, Hans, additional, Brown, Samantha, additional, Häberle, Maximilian, additional, Keppler, Miriam, additional, Molaverdikhani, Karan, additional, and Sarkis, Paula, additional

Published
2020
Full Text
View/download PDF

109. Ground-based detection of an extended helium atmosphere in the Saturn-mass exoplanet WASP-69b

Author

Nortmann, Lisa, primary, Pallé, Enric, additional, Salz, Michael, additional, Sanz-Forcada, Jorge, additional, Nagel, Evangelos, additional, Alonso-Floriano, F. Javier, additional, Czesla, Stefan, additional, Yan, Fei, additional, Chen, Guo, additional, Snellen, Ignas A. G., additional, Zechmeister, Mathias, additional, Schmitt, Jürgen H. M. M., additional, López-Puertas, Manuel, additional, Casasayas-Barris, Núria, additional, Bauer, Florian F., additional, Amado, Pedro J., additional, Caballero, José A., additional, Dreizler, Stefan, additional, Henning, Thomas, additional, Lampón, Manuel, additional, Montes, David, additional, Molaverdikhani, Karan, additional, Quirrenbach, Andreas, additional, Reiners, Ansgar, additional, Ribas, Ignasi, additional, Sánchez-López, Alejandro, additional, Schneider, P. Christian, additional, and Zapatero Osorio, María R., additional

Published
2018
Full Text
View/download PDF

110. The 13th Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey Mapping Nearby Galaxies at Apache Point Observatory

Author

Albareti, Franco D., primary, Prieto, Carlos Allende, additional, Almeida, Andres, additional, Anders, Friedrich, additional, Anderson, Scott, additional, Andrews, Brett H., additional, Aragón-Salamanca, Alfonso, additional, Argudo-Fernández, Maria, additional, Armengaud, Eric, additional, Aubourg, Eric, additional, Avila-Reese, Vladimir, additional, Badenes, Carles, additional, Bailey, Stephen, additional, Barbuy, Beatriz, additional, Barger, Kat, additional, Barrera-Ballesteros, Jorge, additional, Bartosz, Curtis, additional, Basu, Sarbani, additional, Bates, Dominic, additional, Battaglia, Giuseppina, additional, Baumgarten, Falk, additional, Baur, Julien, additional, Bautista, Julian, additional, Beers, Timothy C., additional, Belfiore, Francesco, additional, Bershady, Matthew, additional, de Lis, Sara Bertran, additional, Bird, Jonathan C., additional, Bizyaev, Dmitry, additional, Blanc, Guillermo A., additional, Blanton, Michael, additional, Blomqvist, Michael, additional, Bolton, Adam S., additional, Borissova, J., additional, Bovy, Jo, additional, Brandt, William Nielsen, additional, Brinkmann, Jonathan, additional, Brownstein, Joel R., additional, Bundy, Kevin, additional, Burtin, Etienne, additional, Busca, Nicolás G., additional, Chavez, Hugo Orlando Camacho, additional, Díaz, M. Cano, additional, Cappellari, Michele, additional, Carrera, Ricardo, additional, Chen, Yanping, additional, Cherinka, Brian, additional, Cheung, Edmond, additional, Chiappini, Cristina, additional, Chojnowski, Drew, additional, Chuang, Chia-Hsun, additional, Chung, Haeun, additional, Cirolini, Rafael Fernando, additional, Clerc, Nicolas, additional, Cohen, Roger E., additional, Comerford, Julia M., additional, Comparat, Johan, additional, Correa do Nascimento, Janaina, additional, Cousinou, Marie-Claude, additional, Covey, Kevin, additional, Crane, Jeffrey D., additional, Croft, Rupert, additional, Cunha, Katia, additional, Darling, Jeremy, additional, Davidson, James W., additional, Dawson, Kyle, additional, Da Costa, Luiz, additional, Da Silva Ilha, Gabriele, additional, Machado, Alice Deconto, additional, Delubac, Timothée, additional, De Lee, Nathan, additional, De la Macorra, Axel, additional, De la Torre, Sylvain, additional, Diamond-Stanic, Aleksandar M., additional, Donor, John, additional, Downes, Juan Jose, additional, Drory, Niv, additional, Du, Cheng, additional, Du Mas des Bourboux, Hélion, additional, Dwelly, Tom, additional, Ebelke, Garrett, additional, Eigenbrot, Arthur, additional, Eisenstein, Daniel J., additional, Elsworth, Yvonne P., additional, Emsellem, Eric, additional, Eracleous, Michael, additional, Escoffier, Stephanie, additional, Evans, Michael L., additional, Falcón-Barroso, Jesús, additional, Fan, Xiaohui, additional, Favole, Ginevra, additional, Fernandez-Alvar, Emma, additional, Fernandez-Trincado, J. G., additional, Feuillet, Diane, additional, Fleming, Scott W., additional, Font-Ribera, Andreu, additional, Freischlad, Gordon, additional, Frinchaboy, Peter, additional, Fu, Hai, additional, Gao, Yang, additional, Garcia, Rafael A., additional, Garcia-Dias, R., additional, Garcia-Hernández, D. A., additional, Pérez, Ana E. Garcia, additional, Gaulme, Patrick, additional, Ge, Junqiang, additional, Geisler, Douglas, additional, Gillespie, Bruce, additional, Marin, Hector Gil, additional, Girardi, Léo, additional, Goddard, Daniel, additional, Chew, Yilen Gomez Maqueo, additional, Gonzalez-Perez, Violeta, additional, Grabowski, Kathleen, additional, Green, Paul, additional, Grier, Catherine J., additional, Grier, Thomas, additional, Guo, Hong, additional, Guy, Julien, additional, Hagen, Alex, additional, Hall, Matt, additional, Harding, Paul, additional, Harley, R. E., additional, Hasselquist, Sten, additional, Hawley, Suzanne, additional, Hayes, Christian R., additional, Hearty, Fred, additional, Hekker, Saskia, additional, Toledo, Hector Hernandez, additional, Ho, Shirley, additional, Hogg, David W., additional, Holley-Bockelmann, Kelly, additional, Holtzman, Jon A., additional, Holzer, Parker H., additional, Hu, Jian, additional, Huber, Daniel, additional, Hutchinson, Timothy Alan, additional, Hwang, Ho Seong, additional, Ibarra-Medel, Héctor J., additional, Ivans, Inese I., additional, Ivory, KeShawn, additional, Jaehnig, Kurt, additional, Jensen, Trey W., additional, Johnson, Jennifer A., additional, Jones, Amy, additional, Jullo, Eric, additional, Kallinger, T., additional, Kinemuchi, Karen, additional, Kirkby, David, additional, Klaene, Mark, additional, Kneib, Jean-Paul, additional, Kollmeier, Juna A., additional, Lacerna, Ivan, additional, Lane, Richard R., additional, Lang, Dustin, additional, Laurent, Pierre, additional, Law, David R., additional, Leauthaud, Alexie, additional, Le Goff, Jean-Marc, additional, Li, Chen, additional, Li, Cheng, additional, Li, Niu, additional, Li, Ran, additional, Liang, Fu-Heng, additional, Liang, Yu, additional, Lima, Marcos, additional, Lin, Lihwai, additional, Lin, Lin, additional, Lin, Yen-Ting, additional, Liu, Chao, additional, Long, Dan, additional, Lucatello, Sara, additional, MacDonald, Nicholas, additional, MacLeod, Chelsea L., additional, Mackereth, J. Ted, additional, Mahadevan, Suvrath, additional, Maia, Marcio Antonio Geimba, additional, Maiolino, Roberto, additional, Majewski, Steven R., additional, Malanushenko, Olena, additional, Malanushenko, Viktor, additional, Mallmann, Nícolas Dullius, additional, Manchado, Arturo, additional, Maraston, Claudia, additional, Marques-Chaves, Rui, additional, Valpuesta, Inma Martinez, additional, Masters, Karen L., additional, Mathur, Savita, additional, McGreer, Ian D., additional, Merloni, Andrea, additional, Merrifield, Michael R., additional, Meszáros, Szabolcs, additional, Meza, Andres, additional, Miglio, Andrea, additional, Minchev, Ivan, additional, Molaverdikhani, Karan, additional, Montero-Dorta, Antonio D., additional, Mosser, Benoit, additional, Muna, Demitri, additional, Myers, Adam, additional, Nair, Preethi, additional, Nandra, Kirpal, additional, Ness, Melissa, additional, Newman, Jeffrey A., additional, Nichol, Robert C., additional, Nidever, David L., additional, Nitschelm, Christian, additional, O’Connell, Julia, additional, Oravetz, Audrey, additional, Oravetz, Daniel J., additional, Pace, Zachary, additional, Padilla, Nelson, additional, Palanque-Delabrouille, Nathalie, additional, Pan, Kaike, additional, Parejko, John, additional, Paris, Isabelle, additional, Park, Changbom, additional, Peacock, John A., additional, Peirani, Sebastien, additional, Pellejero-Ibanez, Marcos, additional, Penny, Samantha, additional, Percival, Will J., additional, Percival, Jeffrey W., additional, Perez-Fournon, Ismael, additional, Petitjean, Patrick, additional, Pieri, Matthew, additional, Pinsonneault, Marc H., additional, Pisani, Alice, additional, Prada, Francisco, additional, Prakash, Abhishek, additional, Price-Jones, Natalie, additional, Raddick, M. Jordan, additional, Rahman, Mubdi, additional, Raichoor, Anand, additional, Rembold, Sandro Barboza, additional, Reyna, A. M., additional, Rich, James, additional, Richstein, Hannah, additional, Ridl, Jethro, additional, Riffel, Rogemar A., additional, Riffel, Rogério, additional, Rix, Hans-Walter, additional, Robin, Annie C., additional, Rockosi, Constance M., additional, Rodríguez-Torres, Sergio, additional, Rodrigues, Thaíse S., additional, Roe, Natalie, additional, Lopes, A. Roman, additional, Román-Zúñiga, Carlos, additional, Ross, Ashley J., additional, Rossi, Graziano, additional, Ruan, John, additional, Ruggeri, Rossana, additional, Runnoe, Jessie C., additional, Salazar-Albornoz, Salvador, additional, Salvato, Mara, additional, Sanchez, Sebastian F., additional, Sanchez, Ariel G., additional, Sanchez-Gallego, José R., additional, Santiago, Basílio Xavier, additional, Schiavon, Ricardo, additional, Schimoia, Jaderson S., additional, Schlafly, Eddie, additional, Schlegel, David J., additional, Schneider, Donald P., additional, Schönrich, Ralph, additional, Schultheis, Mathias, additional, Schwope, Axel, additional, Seo, Hee-Jong, additional, Serenelli, Aldo, additional, Sesar, Branimir, additional, Shao, Zhengyi, additional, Shetrone, Matthew, additional, Shull, Michael, additional, Aguirre, Victor Silva, additional, Skrutskie, M. F., additional, Slosar, Anže, additional, Smith, Michael, additional, Smith, Verne V., additional, Sobeck, Jennifer, additional, Somers, Garrett, additional, Souto, Diogo, additional, Stark, David V., additional, Stassun, Keivan G., additional, Steinmetz, Matthias, additional, Stello, Dennis, additional, Bergmann, Thaisa Storchi, additional, Strauss, Michael A., additional, Streblyanska, Alina, additional, Stringfellow, Guy S., additional, Suarez, Genaro, additional, Sun, Jing, additional, Taghizadeh-Popp, Manuchehr, additional, Tang, Baitian, additional, Tao, Charling, additional, Tayar, Jamie, additional, Tembe, Mita, additional, Thomas, Daniel, additional, Tinker, Jeremy, additional, Tojeiro, Rita, additional, Tremonti, Christy, additional, Troup, Nicholas, additional, Trump, Jonathan R., additional, Unda-Sanzana, Eduardo, additional, Valenzuela, O., additional, Van den Bosch, Remco, additional, Vargas-Magaña, Mariana, additional, Vazquez, Jose Alberto, additional, Villanova, Sandro, additional, Vivek, M., additional, Vogt, Nicole, additional, Wake, David, additional, Walterbos, Rene, additional, Wang, Yuting, additional, Wang, Enci, additional, Weaver, Benjamin Alan, additional, Weijmans, Anne-Marie, additional, Weinberg, David H., additional, Westfall, Kyle B., additional, Whelan, David G., additional, Wilcots, Eric, additional, Wild, Vivienne, additional, Williams, Rob A., additional, Wilson, John, additional, Wood-Vasey, W. M., additional, Wylezalek, Dominika, additional, Xiao, Ting, additional, Yan, Renbin, additional, Yang, Meng, additional, Ybarra, Jason E., additional, Yeche, Christophe, additional, Yuan, Fang-Ting, additional, Zakamska, Nadia, additional, Zamora, Olga, additional, Zasowski, Gail, additional, Zhang, Kai, additional, Zhao, Cheng, additional, Zhao, Gong-Bo, additional, Zheng, Zheng, additional, Zhou, Zhi-Min, additional, Zhu, Guangtun, additional, Zinn, Joel C., additional, and Zou, Hu, additional

Published
2017
Full Text
View/download PDF

111. Cube Sat Launching Investigation

Author

Shahmari, Elham, Molaverdikhani, Karan, Jazebizadeh, Hooman, Bakhtiari Mojaz, Sahar, and Taheran, Mahsa

Abstract

Today different groups started to manufacture cubesats because of the low cost of manufacturing and launching the satellites. With the growth of cubesat manufacturing, the scientist has tried to produce the small launchers to respond the needs of new researchers and young scientists. In 1980 the manufactured the commercial small launcher and starting launch in 1990. Also Russia with improvement of their ballistic missile and performing changes and improvement tried to manufacture small launchers with a minimum cost to launch the cubesat in the planed orbits. The cubesat will be launched into space together with other cubesats inside a so called P-pod it will be placed on top of the launch vehicle as a secondary payload and a principal feature of the cluster launch cubesat is to mitigate the technical and financial risk shared by the orbital deployers who are partners in a particular launch. While maintaining reasonable costs and ensuring time delivery. In accordance with the investigations, more than 10 launchers in the world which has the experience of launching cubesats have been identified. Out of these launched cubesats some of them due to the problems and malfunction of launch vehicles have been failed. Some of the successful and failed launch vehicle has been investigated and mentioned below.

Published
2008

113. Twinkle: a small satellite spectroscopy mission for the next phase of exoplanet science

Author

Coyle, Laura E., Matsuura, Shuji, Perrin, Marshall D., Stotesbury, Ian, Edwards, Billy, Lavigne, Jean-Francois, Pesquita, Vasco, Veilleux, James, Windred, Philip, Al-Refaie, Ahmed, Bradley, Lawrence, Ma, Sushang, Savini, Giorgio, Tinetti, Giovanna, Birnstiel, Til, Dodson-Robinson, Sally, Ercolano, Barbara, Feliz, Dax, Hernitschek, Nina, Holdsworth, Daniel, Jiang, Ing-Guey, Griffin, Matt, Lowson, Nataliea, Molaverdikhani, Karan, Neilson, Hilding, Phillips, Caprice, Preibisch, Thomas, Sarkar, Subhajit, Stassun, Keivan G., Ward-Thompson, Derek, Wright, Duncan, Yang, Ming, Yeh, Li-Chin, Zhou, Ji-Lin, Archer, Richard, Barrathwaj Raman Mohan, Yoga, Joshua, Max, Tessenyi, Marcell, Tennyson, Jonathan, and Wilcock, Benjamin

Published
2022
Full Text
View/download PDF

114. The Thirteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey MApping Nearby Galaxies at Apache Point Observatory

Author

Sdss, Collaboration, Albareti, Franco D., Allende Prieto, Carlos, Almeida, Andres, Anders, Friedrich, Anderson, Scott, Andrews, Brett H., Aragon-Salamanca, Alfonso, Argudo-Fernandez, Maria, Armengaud, Eric, Aubourg, Eric, Avila-Reese, Vladimir, Badenes, Carles, Bailey, Stephen, Barbuy, Beatriz, Barger, Kat, Barrera-Ballesteros, Jorge, Bartosz, Curtis, Basu, Sarbani, Bates, Dominic, Battaglia, Giuseppina, Baumgarten, Falk, Baur, Julien, Bautista, Julian, Beers, Timothy C., Belfiore, Francesco, Bershady, Matthew, Bertran Lis, Sara, Bird, Jonathan C., Bizyaev, Dmitry, Blanc, Guillermo A., Blanton, Michael, Blomqvist, Michael, Bolton, Adam S., Borissova, J., Bovy, Jo, Nielsen Brandt, William, Brinkmann, Jonathan, Brownstein, Joel R., Bundy, Kevin, Burtin, Etienne, Busca, Nicolas G., Orlando Camacho Chavez, Hugo, Cano Diaz, M., Cappellari, Michele, Carrera, Ricardo, Chen, Yanping, Cherinka, Brian, Edmond Cheung, Chiappini, Cristina, Chojnowski, Drew, Chuang, Chia-Hsun, Chung, Haeun, Cirolini, Rafael Fernando, Clerc, Nicolas, Cohen, Roger E., Comerford, Julia M., Comparat, Johan, Cousinou, Marie-Claude, Covey, Kevin, Crane, Jeffrey D., Croft, Rupert, Cunha, Katia, Da Costa, Luiz, Da Silva Ilha, Gabriele, Darling, Jeremy, Davidson, James W., Dawson, Kyle, Lee, Nathan, La Macorra, Axel, La Torre, Sylvain, Deconto Machado, Alice, Delubac, Timothee, Diamond-Stanic, Aleksandar M., Donor, John, Downes, Juan Jose, Drory, Niv, Du Mas Des Bourboux, Helion, Du, Cheng, Dwelly, Tom, Ebelke, Garrett, Eigenbrot, Arthur, Eisenstein, Daniel J., Elsworth, Yvonne P., Emsellem, Eric, Eracleous, Michael, Escoffier, Stephanie, Evans, Michael L., Falcon-Barroso, Jesus, Fan, Xiaohui, Favole, Ginevra, Fernandez-Alvar, Emma, Fernandez-Trincado, J. G., Feuillet, Diane, Fleming, Scott W., Font-Ribera, Andreu, Freischlad, Gordon, Frinchaboy, Peter, Fu, Hai, Gao, Yang, Garcia-Hernandez, D. A., Garcia Perez, Ana E., Garcia, Rafael A., Garcia-Dias, R., Gaulme, Patrick, Ge, Junqiang, Geisler, Douglas, Gil Marin, Hector, Gillespie, Bruce, Girardi, Leo, Goddard, Daniel, Gomez Maqueo Chew, Yilen, Gonzalez-Perez, Violeta, Grabowski, Kathleen, Green, Paul, Grier, Catherine J., Grier, Thomas, Guo, Hong, Guy, Julien, Hagen, Alex, Hall, Matt, Harding, Paul, Harley, R. E., Hasselquist, Sten, Hawley, Suzanne, Hayes, Christian R., Hearty, Fred, Hekker, Saskia, Hernandez Toledo, Hector, Ho, Shirley, Hogg, David W., Holley-Bockelmann, Kelly, Holtzman, Jon A., Holzer, Parker H., Hu, Jian, Huber, Daniel, Hutchinson, Timothy Alan, Hwang, Ho Seong, Ibarra-Medel, Hector J., Ivans, Inese I., Ivory, Keshawn, Jaehnig, Kurt, Jensen, Trey W., Johnson, Jennifer A., Jones, Amy, Jullo, Eric, Kallinger, T., Kinemuchi, Karen, Kirkby, David, Klaene, Mark, Kneib, Jean-Paul, Kollmeier, Juna A., Lacerna, Ivan, Lane, Richard R., Lang, Dustin, Laurent, Pierre, Law, David R., Le Goff, Jean-Marc, Leauthaud, Alexie, Li, Cheng, Li, Ran, Li, Chen, Li, Niu, Liang, Fu-Heng, Liang, Yu, Lima, Marcos, Lin, Lihwai, Lin, Lin, Lin, Yen-Ting, Long, Dan, Lucatello, Sara, Macdonald, Nicholas, Macleod, Chelsea L., Mackereth, J. Ted, Mahadevan, Suvrath, Antonio-Geimba Maia, Marcio, Maiolino, Roberto, Majewski, Steven R., Malanushenko, Olena, Dullius Mallmann, Nicolas, Manchado, Arturo, Maraston, Claudia, Marques-Chaves, Rui, Martinez Valpuesta, Inma, Masters, Karen L., Mathur, Savita, Mcgreer, Ian D., Merloni, Andrea, Merrifield, Michael R., Meszaros, Szabolcs, Meza, Andres, Miglio, Andrea, Minchev, Ivan, Molaverdikhani, Karan, Montero-Dorta, Antonio D., Mosser, Benoit, Muna, Demitri, Myers, Adam, Nair, Preethi, Nandra, Kirpal, Ness, Melissa, Newman, Jeffrey A., Nichol, Robert C., Nidever, David L., Nitschelm, Christian, O Connell, Julia, Oravetz, Audrey, Padilla, Nelson, Palanque-Delabrouille, Nathalie, Pan, Kaike, Parejko, John, Paris, Isabelle, Peacock, John A., Peirani, Sebastien, Pellejero-Ibanez, Marcos, Penny, Samantha, Percival, Will J., Percival, Jeffrey W., Perez-Fournon, Ismael, Petitjean, Patrick, Pieri, Matthew, Pinsonneault, Marc H., Pisani, Alice, Prada, Francisco, Prakash, Abhishek, Price-Jones, Natalie, Raddick, M. Jordan, Rahman, Mubdi, Raichoor, Anand, Barboza Rembold, Sandro, Reyna, A. M., Rich, James, Richstein, Hannah, Ridl, Jethro, Riffel, Rogerio, Riffel, Rogemar A., Rix, Hans-Walter, Robin, Annie C., Rockosi, Constance M., Rodriguez-Torres, Sergio, Rodrigues, Thaise S., Roe, Natalie, Lopes, A. Roman, Roman-Zuniga, Carlos, Ross, Ashley J., Rossi, Graziano, Ruan, John, Ruggeri, Rossana, Runnoe, Jessie C., Salazar-Albornoz, Salvador, Salvato, Mara, Sanchez, Ariel G., Sanchez, Sebastian F., Sanchez-Gallego, Jose R., Santiago, Basilio Xavier, Schiavon, Ricardo, Schimoia, Jaderson S., Schlafly, Eddie, Schlegel, David J., Schneider, Donald P., Schoenrich, Ralph, Schultheis, Mathias, Schwope, Axel, Seo, Hee-Jong, Serenelli, Aldo, Sesar, Branimir, Shao, Zhengyi, Shetrone, Matthew, Shull, Michael, Silva Aguirre, Victor, Skrutskie, M. F., Slosar, Anže, Smith, Michael, Smith, Verne V., Sobeck, Jennifer, Somers, Garrett, Souto, Diogo, Stark, David V., Stassun, Keivan G., Steinmetz, Matthias, Stello, Dennis, Storchi Bergmann, Thaisa, Strauss, Michael A., Streblyanska, Alina, Stringfellow, Guy S., Suarez, Genaro, Sun, Jing, Taghizadeh-Popp, Manuchehr, Tang, Baitian, Tao, Charling, Tayar, Jamie, Tembe, Mita, Thomas, Daniel, Tinker, Jeremy, Tojeiro, Rita, Tremonti, Christy, Troup, Nicholas, Trump, Jonathan R., Unda-Sanzana, Eduardo, Valenzuela, O., Den Bosch, Remco, Vargas-Magana, Mariana, Vazquez, Jose Alberto, Villanova, Sandro, Vivek, M., Vogt, Nicole, Wake, David, Walterbos, Rene, Wang, Yuting, Wang, Enci, Weaver, Benjamin Alan, Weijmans, Anne-Marie, Weinberg, David H., Westfall, Kyle B., Whelan, David G., Wilcots, Eric, Wild, Vivienne, Williams, Rob A., Wilson, John, Wood-Vasey, W. M., Wylezalek, Dominika, Xiao, Ting, Yan, Renbin, Yang, Meng, Ybarra, Jason E., Yeche, Christophe, Yuan, Fang-Ting, Zakamska, Nadia, Zamora, Olga, Zasowski, Gail, Zhang, Kai, Zhao, Cheng, Zhao, Gong-Bo, Zheng, Zheng, Zhou, Zhi-Min, Zhu, Guangtun, Zinn, Joel C., Zou, Hu, Univers, Transport, Interfaces, Nanostructures, Atmosphère et environnement, Molécules (UMR 6213) (UTINAM), and Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC)

Subjects
Astrophysics of Galaxies (astro-ph.GA), FOS: Physical sciences, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - Astrophysics of Galaxies, ComputingMilieux_MISCELLANEOUS
Abstract

The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) began observations in July 2014. It pursues three core programs: APOGEE-2, MaNGA, and eBOSS. In addition, eBOSS contains two major subprograms: TDSS and SPIDERS. This paper describes the first data release from SDSS-IV, Data Release 13 (DR13), which contains new data, reanalysis of existing data sets and, like all SDSS data releases, is inclusive of previously released data. DR13 makes publicly available 1390 spatially resolved integral field unit observations of nearby galaxies from MaNGA, the first data released from this survey. It includes new observations from eBOSS, completing SEQUELS. In addition to targeting galaxies and quasars, SEQUELS also targeted variability-selected objects from TDSS and X-ray selected objects from SPIDERS. DR13 includes new reductions of the SDSS-III BOSS data, improving the spectrophotometric calibration and redshift classification. DR13 releases new reductions of the APOGEE-1 data from SDSS-III, with abundances of elements not previously included and improved stellar parameters for dwarf stars and cooler stars. For the SDSS imaging data, DR13 provides new, more robust and precise photometric calibrations. Several value-added catalogs are being released in tandem with DR13, in particular target catalogs relevant for eBOSS, TDSS, and SPIDERS, and an updated red-clump catalog for APOGEE. This paper describes the location and format of the data now publicly available, as well as providing references to the important technical papers that describe the targeting, observing, and data reduction. The SDSS website, http://www.sdss.org, provides links to the data, tutorials and examples of data access, and extensive documentation of the reduction and analysis procedures. DR13 is the first of a scheduled set that will contain new data and analyses from the planned ~6-year operations of SDSS-IV., Comment: Full information on DR13 available at http://www.sdss.org. Comments welcome to spokesperson@sdss.org. To be published in ApJS

115. Data availability and requirements relevant for the Ariel space mission and other exoplanet atmosphere applications

Author

Chubb, Katy L, Robert, Séverine, Sousa-Silva, Clara, Yurchenko, Sergei N, Allard, Nicole F, Boudon, Vincent, Buldyreva, Jeanna, Bultel, Benjamin, Coustenis, Athena, Foltynowicz, Aleksandra, Gordon, Iouli E, Hargreaves, Robert J, Helling, Christiane, Hill, Christian, Hrodmarsson, Helgi Rafn, Karman, Tijs, Lecoq-Molinos, Helena, Migliorini, Alessandra, Rey, Michaël, Richard, Cyril, Sadiek, Ibrahim, Schmidt, Frédéric, Sokolov, Andrei, Stefani, Stefania, Tennyson, Jonathan, Venot, Olivia, Wright, Sam O M, Arenales-Lope, Rosa, Barstow, Joanna K, Bocchieri, Andrea, Carrasco, Nathalie, Dubey, Dwaipayan, Egorov, Oleg, Muñoz, Antonio García, Gharib-Nezhad, Ehsan (Sam), Gkouvelis, Leonardos, Grübel, Fabian, Irwin, Patrick Gerard Joseph, Knížek, Antonín, Lewis, David A, Lodge, Matt G, Ma, Sushuang, Martins, Zita, Molaverdikhani, Karan, Morello, Giuseppe, Nikitin, Andrei, Panek, Emilie, Rengel, Miriam, Rinaldi, Giovanna, Skinner, Jack W, Tinetti, Giovanna, van Kempen, Tim A, Yang, Jingxuan, Zingales, Tiziano, Chubb, Katy L, Robert, Séverine, Sousa-Silva, Clara, Yurchenko, Sergei N, Allard, Nicole F, Boudon, Vincent, Buldyreva, Jeanna, Bultel, Benjamin, Coustenis, Athena, Foltynowicz, Aleksandra, Gordon, Iouli E, Hargreaves, Robert J, Helling, Christiane, Hill, Christian, Hrodmarsson, Helgi Rafn, Karman, Tijs, Lecoq-Molinos, Helena, Migliorini, Alessandra, Rey, Michaël, Richard, Cyril, Sadiek, Ibrahim, Schmidt, Frédéric, Sokolov, Andrei, Stefani, Stefania, Tennyson, Jonathan, Venot, Olivia, Wright, Sam O M, Arenales-Lope, Rosa, Barstow, Joanna K, Bocchieri, Andrea, Carrasco, Nathalie, Dubey, Dwaipayan, Egorov, Oleg, Muñoz, Antonio García, Gharib-Nezhad, Ehsan (Sam), Gkouvelis, Leonardos, Grübel, Fabian, Irwin, Patrick Gerard Joseph, Knížek, Antonín, Lewis, David A, Lodge, Matt G, Ma, Sushuang, Martins, Zita, Molaverdikhani, Karan, Morello, Giuseppe, Nikitin, Andrei, Panek, Emilie, Rengel, Miriam, Rinaldi, Giovanna, Skinner, Jack W, Tinetti, Giovanna, van Kempen, Tim A, Yang, Jingxuan, and Zingales, Tiziano

Abstract

The goal of this white paper is to provide a snapshot of the data availability and data needs primarily for the Ariel space mission, but also for related atmospheric studies of exoplanets and cool stars. It covers the following data-related topics: molecular and atomic line lists, line profiles, computed cross-sections and opacities, collision-induced absorption and other continuum data, optical properties of aerosols and surfaces, atmospheric chemistry, UV photodissociation and photoabsorption cross-sections, and standards in the description and format of such data. These data aspects are discussed by addressing the following questions for each topic, based on the experience of the “data-provider” and “data-user” communities: (1) what are the types and sources of currently available data, (2) what work is currently in progress, and (3) what are the current and anticipated data needs. We present a GitHub platform for Ariel-related data, with the goal to provide a go-to place for both data-users and data-providers, for the users to make requests for their data needs and for the data-providers to link to their available data. Our aim throughout the paper is to provide practical information on existing sources of data whether in databases, theoretical, or literature sources.

116. Nightside clouds and disequilibrium chemistry on the hot Jupiter WASP-43b

Author

Bell, Taylor J., Crouzet, Nicolas, Cubillos, Patricio E., Kreidberg, Laura, Piette, Anjali A. A., Roman, Michael T., Barstow, Joanna K., Blecic, Jasmina, Carone, Ludmila, Coulombe, Louis-Philippe, Ducrot, Elsa, Hammond, Mark, Mendonça, João M., Moses, Julianne I., Parmentier, Vivien, Stevenson, Kevin B., Teinturier, Lucas, Zhang, Michael, Batalha, Natalie M., Bean, Jacob L., Benneke, Björn, Charnay, Benjamin, Chubb, Katy L., Demory, Brice-Olivier, Gao, Peter, Lee, Elspeth K. H., López-Morales, Mercedes, Morello, Giuseppe, Rauscher, Emily, Sing, David K., Tan, Xianyu, Venot, Olivia, Wakeford, Hannah R., Aggarwal, Keshav, Ahrer, Eva-Maria, Alam, Munazza K., Baeyens, Robin, Barrado, David, Caceres, Claudio, Carter, Aarynn L., Casewell, Sarah L., Challener, Ryan C., Crossfield, Ian J. M., Decin, Leen, Désert, Jean-Michel, Dobbs-Dixon, Ian, Dyrek, Achrène, Espinoza, Néstor, Feinstein, Adina D., Gibson, Neale P., Harrington, Joseph, Helling, Christiane, Hu, Renyu, Iro, Nicolas, Kempton, Eliza M.-R., Kendrew, Sarah, Komacek, Thaddeus D., Krick, Jessica, Lagage, Pierre-Olivier, Leconte, Jérémy, Lendl, Monika, Lewis, Neil T., Lothringer, Joshua D., Malsky, Isaac, Mancini, Luigi, Mansfield, Megan, Mayne, Nathan J., Evans-Soma, Thomas M., Molaverdikhani, Karan, Nikolov, Nikolay K., Nixon, Matthew C., Palle, Enric, Petit dit de la Roche, Dominique J. M., Piaulet, Caroline, Powell, Diana, Rackham, Benjamin V., Schneider, Aaron D., Steinrueck, Maria E., Taylor, Jake, Welbanks, Luis, Yurchenko, Sergei N., Zhang, Xi, Zieba, Sebastian, Bell, Taylor J., Crouzet, Nicolas, Cubillos, Patricio E., Kreidberg, Laura, Piette, Anjali A. A., Roman, Michael T., Barstow, Joanna K., Blecic, Jasmina, Carone, Ludmila, Coulombe, Louis-Philippe, Ducrot, Elsa, Hammond, Mark, Mendonça, João M., Moses, Julianne I., Parmentier, Vivien, Stevenson, Kevin B., Teinturier, Lucas, Zhang, Michael, Batalha, Natalie M., Bean, Jacob L., Benneke, Björn, Charnay, Benjamin, Chubb, Katy L., Demory, Brice-Olivier, Gao, Peter, Lee, Elspeth K. H., López-Morales, Mercedes, Morello, Giuseppe, Rauscher, Emily, Sing, David K., Tan, Xianyu, Venot, Olivia, Wakeford, Hannah R., Aggarwal, Keshav, Ahrer, Eva-Maria, Alam, Munazza K., Baeyens, Robin, Barrado, David, Caceres, Claudio, Carter, Aarynn L., Casewell, Sarah L., Challener, Ryan C., Crossfield, Ian J. M., Decin, Leen, Désert, Jean-Michel, Dobbs-Dixon, Ian, Dyrek, Achrène, Espinoza, Néstor, Feinstein, Adina D., Gibson, Neale P., Harrington, Joseph, Helling, Christiane, Hu, Renyu, Iro, Nicolas, Kempton, Eliza M.-R., Kendrew, Sarah, Komacek, Thaddeus D., Krick, Jessica, Lagage, Pierre-Olivier, Leconte, Jérémy, Lendl, Monika, Lewis, Neil T., Lothringer, Joshua D., Malsky, Isaac, Mancini, Luigi, Mansfield, Megan, Mayne, Nathan J., Evans-Soma, Thomas M., Molaverdikhani, Karan, Nikolov, Nikolay K., Nixon, Matthew C., Palle, Enric, Petit dit de la Roche, Dominique J. M., Piaulet, Caroline, Powell, Diana, Rackham, Benjamin V., Schneider, Aaron D., Steinrueck, Maria E., Taylor, Jake, Welbanks, Luis, Yurchenko, Sergei N., Zhang, Xi, and Zieba, Sebastian

117. Sulphur dioxide in the mid-infrared transmission spectrum of WASP-39b

Author

Powell, Diana, Feinstein, Adina D, Lee, Elspeth K H, Zhang, Michael, Tsai, Shang-Min, Taylor, Jake, Kirk, James, Bell, Taylor, Barstow, Joanna K, Gao, Peter, Bean, Jacob L, Blecic, Jasmina, Chubb, Katy L, Crossfield, Ian J M, Jordan, Sean, Kitzmann, Daniel, Moran, Sarah E, Morello, Giuseppe, Moses, Julianne I, Welbanks, Luis, Yang, Jeehyun, Zhang, Xi, Ahrer, Eva-Maria, Bello-Arufe, Aaron, Brande, Jonathan, Casewell, S L, Crouzet, Nicolas, Cubillos, Patricio E, Demory, Brice-Olivier, Dyrek, Achrène, Flagg, Laura, Hu, Renyu, Inglis, Julie, Jones, Kathryn D, Kreidberg, Laura, López-Morales, Mercedes, Lagage, Pierre-Olivier, Meier Valdés, Erik A, Miguel, Yamila, Parmentier, Vivien, Piette, Anjali A A, Rackham, Benjamin V, Radica, Michael, Redfield, Seth, Stevenson, Kevin B, Wakeford, Hannah R, Aggarwal, Keshav, Alam, Munazza K, Batalha, Natalie M, Batalha, Natasha E, Benneke, Björn, Berta-Thompson, Zach K, Brady, Ryan P, Caceres, Claudio, Carter, Aarynn L, Désert, Jean-Michel, Harrington, Joseph, Iro, Nicolas, Line, Michael R, Lothringer, Joshua D, MacDonald, Ryan J, Mancini, Luigi, Molaverdikhani, Karan, Mukherjee, Sagnick, Nixon, Matthew C, Oza, Apurva V, Palle, Enric, Rustamkulov, Zafar, Sing, David K, Steinrueck, Maria E, Venot, Olivia, Wheatley, Peter J, Yurchenko, Sergei N, Powell, Diana, Feinstein, Adina D, Lee, Elspeth K H, Zhang, Michael, Tsai, Shang-Min, Taylor, Jake, Kirk, James, Bell, Taylor, Barstow, Joanna K, Gao, Peter, Bean, Jacob L, Blecic, Jasmina, Chubb, Katy L, Crossfield, Ian J M, Jordan, Sean, Kitzmann, Daniel, Moran, Sarah E, Morello, Giuseppe, Moses, Julianne I, Welbanks, Luis, Yang, Jeehyun, Zhang, Xi, Ahrer, Eva-Maria, Bello-Arufe, Aaron, Brande, Jonathan, Casewell, S L, Crouzet, Nicolas, Cubillos, Patricio E, Demory, Brice-Olivier, Dyrek, Achrène, Flagg, Laura, Hu, Renyu, Inglis, Julie, Jones, Kathryn D, Kreidberg, Laura, López-Morales, Mercedes, Lagage, Pierre-Olivier, Meier Valdés, Erik A, Miguel, Yamila, Parmentier, Vivien, Piette, Anjali A A, Rackham, Benjamin V, Radica, Michael, Redfield, Seth, Stevenson, Kevin B, Wakeford, Hannah R, Aggarwal, Keshav, Alam, Munazza K, Batalha, Natalie M, Batalha, Natasha E, Benneke, Björn, Berta-Thompson, Zach K, Brady, Ryan P, Caceres, Claudio, Carter, Aarynn L, Désert, Jean-Michel, Harrington, Joseph, Iro, Nicolas, Line, Michael R, Lothringer, Joshua D, MacDonald, Ryan J, Mancini, Luigi, Molaverdikhani, Karan, Mukherjee, Sagnick, Nixon, Matthew C, Oza, Apurva V, Palle, Enric, Rustamkulov, Zafar, Sing, David K, Steinrueck, Maria E, Venot, Olivia, Wheatley, Peter J, and Yurchenko, Sergei N

118. Twinkle: a small satellite spectroscopy mission for the next phase of exoplanet science

Author

Stotesbury, Ian, Edwards, Billy, Lavigne, Jean-François, Pesquita, Vasco, Veilleux, James, Windred, Philip, Al-Refaie, Ahmed, Bradley, Lawrence, Ma, Sushang, Savini, Giorgio, Tinetti, Giovanna, Birnstiel, Til, Dodson-Robinson, Sally, Ercolano, Barbara, Feliz, Dax, Hernitschek, Nina, Holdsworth, Daniel, Jiang, Ing-Guey, Griffin, Matthew J., Lowson, Nataliea, Molaverdikhani, Karan, Neilson, Hilding, Phillips, Caprice, Preibisch, Thomas, Sarkar, Subhajit, Stassun, Keivan, Ward-Thompson, Derek, Wright, Duncan, Yang, Ming, Yeh, Li-Chin, Zhou, Ji-Lin, Archer, Richard, Barrathwaj Raman Mohan, Yoga, Joshua, Max, Tessenyi, Marcell, Tennyson, Jonathan, Wilcock, Benjamin, Coyle, Laura E., Perrin, Marshall D., Matsuura, Shuji, Stotesbury, Ian, Edwards, Billy, Lavigne, Jean-François, Pesquita, Vasco, Veilleux, James, Windred, Philip, Al-Refaie, Ahmed, Bradley, Lawrence, Ma, Sushang, Savini, Giorgio, Tinetti, Giovanna, Birnstiel, Til, Dodson-Robinson, Sally, Ercolano, Barbara, Feliz, Dax, Hernitschek, Nina, Holdsworth, Daniel, Jiang, Ing-Guey, Griffin, Matthew J., Lowson, Nataliea, Molaverdikhani, Karan, Neilson, Hilding, Phillips, Caprice, Preibisch, Thomas, Sarkar, Subhajit, Stassun, Keivan, Ward-Thompson, Derek, Wright, Duncan, Yang, Ming, Yeh, Li-Chin, Zhou, Ji-Lin, Archer, Richard, Barrathwaj Raman Mohan, Yoga, Joshua, Max, Tessenyi, Marcell, Tennyson, Jonathan, Wilcock, Benjamin, Coyle, Laura E., Perrin, Marshall D., and Matsuura, Shuji

119. The effect of stellar contamination on low-resolution transmission spectroscopy: needs identified by NASA’s Exoplanet Exploration Program Study Analysis Group 21

Author

Rackham, Benjamin V, Espinoza, Néstor, Berdyugina, Svetlana V, Korhonen, Heidi, MacDonald, Ryan J, Montet, Benjamin T, Morris, Brett M, Oshagh, Mahmoudreza, Shapiro, Alexander I, Unruh, Yvonne C, Quintana, Elisa V, Zellem, Robert T, Apai, Dániel, Barclay, Thomas, Barstow, Joanna K, Bruno, Giovanni, Carone, Ludmila, Casewell, Sarah L, Cegla, Heather M, Criscuoli, Serena, Fischer, Catherine, Fournier, Damien, Giampapa, Mark S, Giles, Helen, Iyer, Aishwarya, Kopp, Greg, Kostogryz, Nadiia M, Krivova, Natalie, Mallonn, Matthias, McGruder, Chima, Molaverdikhani, Karan, Newton, Elisabeth R, Panja, Mayukh, Peacock, Sarah, Reardon, Kevin, Roettenbacher, Rachael M, Scandariato, Gaetano, Solanki, Sami, Stassun, Keivan G, Steiner, Oskar, Stevenson, Kevin B, Tregloan-Reed, Jeremy, Valio, Adriana, Wedemeyer, Sven, Welbanks, Luis, Yu, Jie, Alam, Munazza K, Davenport, James R A, Deming, Drake, Dong, Chuanfei, Ducrot, Elsa, Fisher, Chloe, Gilbert, Emily, Kostov, Veselin, López-Morales, Mercedes, Line, Mike, Močnik, Teo, Mullally, Susan, Paudel, Rishi R, Ribas, Ignasi, Valenti, Jeff A, Rackham, Benjamin V, Espinoza, Néstor, Berdyugina, Svetlana V, Korhonen, Heidi, MacDonald, Ryan J, Montet, Benjamin T, Morris, Brett M, Oshagh, Mahmoudreza, Shapiro, Alexander I, Unruh, Yvonne C, Quintana, Elisa V, Zellem, Robert T, Apai, Dániel, Barclay, Thomas, Barstow, Joanna K, Bruno, Giovanni, Carone, Ludmila, Casewell, Sarah L, Cegla, Heather M, Criscuoli, Serena, Fischer, Catherine, Fournier, Damien, Giampapa, Mark S, Giles, Helen, Iyer, Aishwarya, Kopp, Greg, Kostogryz, Nadiia M, Krivova, Natalie, Mallonn, Matthias, McGruder, Chima, Molaverdikhani, Karan, Newton, Elisabeth R, Panja, Mayukh, Peacock, Sarah, Reardon, Kevin, Roettenbacher, Rachael M, Scandariato, Gaetano, Solanki, Sami, Stassun, Keivan G, Steiner, Oskar, Stevenson, Kevin B, Tregloan-Reed, Jeremy, Valio, Adriana, Wedemeyer, Sven, Welbanks, Luis, Yu, Jie, Alam, Munazza K, Davenport, James R A, Deming, Drake, Dong, Chuanfei, Ducrot, Elsa, Fisher, Chloe, Gilbert, Emily, Kostov, Veselin, López-Morales, Mercedes, Line, Mike, Močnik, Teo, Mullally, Susan, Paudel, Rishi R, Ribas, Ignasi, and Valenti, Jeff A

Abstract

Study Analysis Group 21 (SAG21) of NASA’s Exoplanet Exploration Program Analysis Group was organized to study the effect of stellar contamination on space-based transmission spectroscopy, a method for studying exoplanetary atmospheres by measuring the wavelength-dependent radius of a planet as it transits its star. Transmission spectroscopy relies on a precise understanding of the spectrum of the star being occulted. However, stars are not homogeneous, constant light sources but have temporally evolving photospheres and chromospheres with inhomogeneities like spots, faculae, plages, granules, and flares. This SAG brought together an interdisciplinary team of more than 100 scientists, with observers and theorists from the heliophysics, stellar astrophysics, planetary science, and exoplanetary atmosphere research communities, to study the current research needs that can be addressed in this context to make the most of transit studies from current NASA facilities like Hubble Space Telescope and JWST. The analysis produced 14 findings, which fall into three science themes encompassing (i) how the Sun is used as our best laboratory to calibrate our understanding of stellar heterogeneities (‘The Sun as the Stellar Benchmark’), (ii) how stars other than the Sun extend our knowledge of heterogeneities (‘Surface Heterogeneities of Other Stars’), and (iii) how to incorporate information gathered for the Sun and other stars into transit studies (‘Mapping Stellar Knowledge to Transit Studies’). In this invited review, we largely reproduce the final report of SAG21 as a contribution to the peer-reviewed literature.

120. Identification of carbon dioxide in an exoplanet atmosphere

Author

Ahrer, Eva-Maria, Alderson, Lili, Batalha, Natalie M., Batalha, Natasha E., Bean, Jacob L., Beatty, Thomas G., Bell, Taylor J., Benneke, Björn, Berta-Thompson, Zachory K., Carter, Aarynn L., Crossfield, Ian J. M., Espinoza, Néstor, Feinstein, Adina D., Fortney, Jonathan J., Gibson, Neale P., Goyal, Jayesh M., Kempton, Eliza M.-R., Kirk, James, Kreidberg, Laura, López-Morales, Mercedes, Line, Michael R., Lothringer, Joshua D., Moran, Sarah E., Mukherjee, Sagnick, Ohno, Kazumasa, Parmentier, Vivien, Piaulet, Caroline, Rustamkulov, Zafar, Schlawin, Everett, Sing, David K., Stevenson, Kevin B., Wakeford, Hannah R., Allen, Natalie H., Birkmann, Stephan M., Brande, Jonathan, Crouzet, Nicolas, Cubillos, Patricio E., Damiano, Mario, Désert, Jean-Michel, Gao, Peter, Harrington, Joseph, Hu, Renyu, Kendrew, Sarah, Knutson, Heather A., Lagage, Pierre-Olivier, Leconte, Jérémy, Lendl, Monika, MacDonald, Ryan J., May, E. M., Miguel, Yamila, Molaverdikhani, Karan, Moses, Julianne I., Murray, Catriona Anne, Nehring, Molly, Nikolov, Nikolay K., Petit dit de la Roche, D. J. M., Radica, Michael, Roy, Pierre-Alexis, Stassun, Keivan G., Taylor, Jake, Waalkes, William C., Wachiraphan, Patcharapol, Welbanks, Luis, Wheatley, Peter J., Aggarwal, Keshav, Alam, Munazza K., Banerjee, Agnibha, Barstow, Joanna K., Blecic, Jasmina, Casewell, S. L., Changeat, Quentin, Chubb, K. L., Colón, Knicole D., Coulombe, Louis-Philippe, Daylan, Tansu, de Val-Borro, Miguel, Decin, Leen, Dos Santos, Leonardo A., Flagg, Laura, France, Kevin, Fu, Guangwei, García Muñoz, A., Gizis, John E., Glidden, Ana, Grant, David, Heng, Kevin, Henning, Thomas, Hong, Yu-Cian, Inglis, Julie, Iro, Nicolas, Kataria, Tiffany, Komacek, Thaddeus D., Krick, Jessica E., Lee, Elspeth K. H., Lewis, Nikole K., Lillo-Box, Jorge, Lustig-Yaeger, Jacob, Mancini, Luigi, Mandell, Avi M., Mansfield, Megan, Marley, Mark S., Mikal-Evans, Thomas, Morello, Giuseppe, Nixon, Matthew C., Ortiz Ceballos, Kevin, Piette, Anjali A. A., Powell, Diana, Rackham, Benjamin V., Ramos-Rosado, Lakeisha, Rauscher, Emily, Redfield, Seth, Rogers, Laura K., Roman, Michael T., Roudier, Gael M., Scarsdale, Nicholas, Shkolnik, Evgenya L., Southworth, John, Spake, Jessica J., Steinrueck, Maria E., Tan, Xianyu, Teske, Johanna K., Tremblin, Pascal, Tsai, Shang-Min, Tucker, Gregory S., Turner, Jake D., Valenti, Jeff A., Venot, Olivia, Waldmann, Ingo P., Wallack, Nicole L., Zhang, Xi, Zieba, Sebastian, Ahrer, Eva-Maria, Alderson, Lili, Batalha, Natalie M., Batalha, Natasha E., Bean, Jacob L., Beatty, Thomas G., Bell, Taylor J., Benneke, Björn, Berta-Thompson, Zachory K., Carter, Aarynn L., Crossfield, Ian J. M., Espinoza, Néstor, Feinstein, Adina D., Fortney, Jonathan J., Gibson, Neale P., Goyal, Jayesh M., Kempton, Eliza M.-R., Kirk, James, Kreidberg, Laura, López-Morales, Mercedes, Line, Michael R., Lothringer, Joshua D., Moran, Sarah E., Mukherjee, Sagnick, Ohno, Kazumasa, Parmentier, Vivien, Piaulet, Caroline, Rustamkulov, Zafar, Schlawin, Everett, Sing, David K., Stevenson, Kevin B., Wakeford, Hannah R., Allen, Natalie H., Birkmann, Stephan M., Brande, Jonathan, Crouzet, Nicolas, Cubillos, Patricio E., Damiano, Mario, Désert, Jean-Michel, Gao, Peter, Harrington, Joseph, Hu, Renyu, Kendrew, Sarah, Knutson, Heather A., Lagage, Pierre-Olivier, Leconte, Jérémy, Lendl, Monika, MacDonald, Ryan J., May, E. M., Miguel, Yamila, Molaverdikhani, Karan, Moses, Julianne I., Murray, Catriona Anne, Nehring, Molly, Nikolov, Nikolay K., Petit dit de la Roche, D. J. M., Radica, Michael, Roy, Pierre-Alexis, Stassun, Keivan G., Taylor, Jake, Waalkes, William C., Wachiraphan, Patcharapol, Welbanks, Luis, Wheatley, Peter J., Aggarwal, Keshav, Alam, Munazza K., Banerjee, Agnibha, Barstow, Joanna K., Blecic, Jasmina, Casewell, S. L., Changeat, Quentin, Chubb, K. L., Colón, Knicole D., Coulombe, Louis-Philippe, Daylan, Tansu, de Val-Borro, Miguel, Decin, Leen, Dos Santos, Leonardo A., Flagg, Laura, France, Kevin, Fu, Guangwei, García Muñoz, A., Gizis, John E., Glidden, Ana, Grant, David, Heng, Kevin, Henning, Thomas, Hong, Yu-Cian, Inglis, Julie, Iro, Nicolas, Kataria, Tiffany, Komacek, Thaddeus D., Krick, Jessica E., Lee, Elspeth K. H., Lewis, Nikole K., Lillo-Box, Jorge, Lustig-Yaeger, Jacob, Mancini, Luigi, Mandell, Avi M., Mansfield, Megan, Marley, Mark S., Mikal-Evans, Thomas, Morello, Giuseppe, Nixon, Matthew C., Ortiz Ceballos, Kevin, Piette, Anjali A. A., Powell, Diana, Rackham, Benjamin V., Ramos-Rosado, Lakeisha, Rauscher, Emily, Redfield, Seth, Rogers, Laura K., Roman, Michael T., Roudier, Gael M., Scarsdale, Nicholas, Shkolnik, Evgenya L., Southworth, John, Spake, Jessica J., Steinrueck, Maria E., Tan, Xianyu, Teske, Johanna K., Tremblin, Pascal, Tsai, Shang-Min, Tucker, Gregory S., Turner, Jake D., Valenti, Jeff A., Venot, Olivia, Waldmann, Ingo P., Wallack, Nicole L., Zhang, Xi, and Zieba, Sebastian

Abstract

Carbon dioxide (CO2) is a key chemical species that is found in a wide range of planetary atmospheres. In the context of exoplanets, CO2 is an indicator of the metal enrichment (that is, elements heavier than helium, also called ‘metallicity’), and thus the formation processes of the primary atmospheres of hot gas giants. It is also one of the most promising species to detect in the secondary atmospheres of terrestrial exoplanets. Previous photometric measurements of transiting planets with the Spitzer Space Telescope have given hints of the presence of CO2, but have not yielded definitive detections owing to the lack of unambiguous spectroscopic identification. Here we present the detection of CO2 in the atmosphere of the gas giant exoplanet WASP-39b from transmission spectroscopy observations obtained with JWST as part of the Early Release Science programme. The data used in this study span 3.0–5.5 micrometres in wavelength and show a prominent CO2 absorption feature at 4.3 micrometres (26-sigma significance). The overall spectrum is well matched by one-dimensional, ten-times solar metallicity models that assume radiative–convective–thermochemical equilibrium and have moderate cloud opacity. These models predict that the atmosphere should have water, carbon monoxide and hydrogen sulfide in addition to CO2, but little methane. Furthermore, we also tentatively detect a small absorption feature near 4.0 micrometres that is not reproduced by these models.

121. An ultra-short-period transiting super-Earth orbiting the M3 dwarf TOI-1685

Author

Bluhm, Paz, Pallé, Enric, Molaverdikhani, Karan, Kemmer,Jonas, and Hatzes, Artie

Subjects
techniques: photometric, Exoplanets, techniques: radial velocities, stars: late-type, stars: individual: TOI-1685
Abstract

Dynamical histories of planetary systems, as well as atmospheric evolution of highly irradiated planets, can be studied by characterizing the ultra-short-period planet population, which the TESS mission is particularly well suited to discover. Here, we report on the follow-up of a transit signal detected in the TESS sector 19 photometric time series of the M3.0 V star TOI-1685. We confirm the planetary nature of the transit signal, which has a period of Pb = 0.6691403+0.0000023-0.0000021 d, using precise radial velocity measurements taken with the CARMENES spectrograph. From the joint photometry and radial velocity analysis, we estimate the following parameters for TOI-1685 b: a mass of Mb = 3.78+0.63- 0.63 M⊕, a radius of Rb = 1.70+0.07- 0.07 R⊕, which together result in a bulk density of ρb = 4.21+0.95-0.82 g/cm3, and an equilibrium temperature of Teq = 1069 +16-16 K. TOI-1685 b is the least dense ultra-short period planet around an M dwarf known to date. TOI-1685 b is also one of the hottest transiting super-Earth planets with accurate dynamical mass measurements, which makes it a particularly attractive target for thermal emission spectroscopy. Additionally, we report with moderate evidence a further non-transiting planet candidate in the system, TOI-1685[c], with an orbital period of Pc = 9.02+0.10- 0.12 d., {"references":["Espinoza et al. 2019, adsurl: https://ui.adsabs.harvard.edu/abs/2019MNRAS.490.2262E","Zeng et al. 2019, adsurl:https://ui.adsabs.harvard.edu/abs/2019PNAS..116.9723Z","Zeng et al. 2016, adsurl: http://adsabs.harvard.edu/abs/2016ApJ...819..127Z","Southworth, J. 2011, adsurl: http://adsabs.harvard.edu/abs/2011MNRAS.417.2166S","Martínez-Rodríguez et al. 2019, adsurl: https://ui.adsabs.harvard.edu/abs/2019ApJ...887..261M"]}

122. Inhomogeneous terminators on the exoplanet WASP-39 b.

Author

Espinoza N, Steinrueck ME, Kirk J, MacDonald RJ, Savel AB, Arnold K, Kempton EM, Murphy MM, Carone L, Zamyatina M, Lewis DA, Samra D, Kiefer S, Rauscher E, Christie D, Mayne N, Helling C, Rustamkulov Z, Parmentier V, May EM, Carter AL, Zhang X, López-Morales M, Allen N, Blecic J, Decin L, Mancini L, Molaverdikhani K, Rackham BV, Palle E, Tsai SM, Ahrer EM, Bean JL, Crossfield IJM, Haegele D, Hébrard E, Kreidberg L, Powell D, Schneider AD, Welbanks L, Wheatley P, Brahm R, and Crouzet N

Abstract

Transmission spectroscopy has been a workhorse technique used over the past two decades to constrain the physical and chemical properties of exoplanet atmospheres 1-5 . One of its classical key assumptions is that the portion of the atmosphere it probes-the terminator region-is homogeneous. Several works from the past decade, however, have put this into question for highly irradiated, hot (T eq  ≳ 1,000 K) gas giant exoplanets, both empirically 6-10 and through three-dimensional modelling 11-17 . While models have predicted clear differences between the evening (day-to-night) and morning (night-to-day) terminators, direct morning and evening transmission spectra in a wide wavelength range have not been reported for an exoplanet so far. Under the assumption of precise and accurate orbital parameters for the exoplanet WASP-39 b, here we report the detection of inhomogeneous terminators on WASP-39 b, which has allowed us to retrieve its morning and evening transmission spectra in the near-infrared (2-5 μm) using the James Webb Space Telescope. We have observed larger transit depths in the evening, which are, on average, 405 ± 88 ppm larger than the morning ones, and also have qualitatively larger features than the morning spectrum. The spectra are best explained by models in which the evening terminator is hotter than the morning terminator by 17 7 - 57 + 65  K, with both terminators having C/O ratios consistent with solar. General circulation models predict temperature differences broadly consistent with the above value and point towards a cloudy morning terminator and a clearer evening terminator., (© 2024. The Author(s).)

Published
2024
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results