The X-ray Integral Field Unit at the end of the Athena reformulation phase

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Main Authors: Peille, Philippe, Barret, Didier, Cucchetti, Edoardo, Albouys, Vincent, Piro, Luigi, Simionescu, Aurora, Cappi, Massimo, Bellouard, Elise, Cénac-Morthé, Céline, Daniel, Christophe, Pradines, Alice, Finoguenov, Alexis, Kelley, Richard, Mas-Hesse, J. Miguel, Paltani, Stéphane, Rauw, Gregor, Rozanska, Agata, Svoboda, Jiri, Wilms, Joern, Audard, Marc, Bozzo, Enrico, Costantini, Elisa, Dadina, Mauro, Dauser, Thomas, Decourchelle, Anne, Herder, Jan-Willem den, Goldwurm, Andrea, Jonker, Peter, Markowitz, Alex, Mendez, Mariano, Miniutti, Giovanni, Molendi, Silvano, Nicastro, Fabrizio, Pajot, François, Pointecouteau, Etienne, Pratt, Gabriel W., Schaye, Joop, Vink, Jacco, Webb, Natalie, Bandler, Simon, Barbera, Marco, Ceballos, Maria Teresa, Charles, Ivan, Hartog, Roland den, Doriese, W. Bertrand, Duval, Jean-Marc, Gatti, Flavio, Jackson, Brian, Kilbourne, Caroline, Macculi, Claudio, Martin, Sylvain, Parot, Yann, Porter, Frederick, Prêle, Damien, Ravera, Laurent, Smith, Stephen, Soucek, Jan, Thibert, Tanguy, Tuominen, Eija, Acero, Fabio, Ettori, Stefano, Grosso, Nicolas, Kaastra, Jelle, Mazzotta, Pasquale, Miller, Jon, Sciortino, Salvatore, Beaumont, Sophie, D'Andrea, Matteo, de Plaa, Jelle, Eckart, Megan, Gottardi, Luciano, Leutenegger, Maurice, Lotti, Simone, Molin, Alexei, Natalucci, Lorenzo, Adil, Muhammad Qazi, Argan, Andrea, Cavazzuti, Elisabetta, Fiorini, Mauro, Khosropanah, Pourya, Villegas, Eduardo Medinaceli, Minervini, Gabriele, Perry, James, Pinsard, Frederic, Raulin, Desi, Rigano, Manuela, Roelfsema, Peter, Schwander, Denis, Terron, Santiago, Torrioli, Guido, Ullom, Joel, Zuchniak, Monika, Chaoul, Laurence, Torrejon, Jose Miguel, Brachet, Frank, Cobo, Beatriz, Durkin, Malcolm, Fioretti, Valentina, Geoffray, Hervé, Jacques, Lionel, Kirsch, Christian, Cicero, Ugo Lo, Adams, Joseph, Gloaguen, Emilie, Gonzalez, Manuel, Hull, Samuel, Jellyman, Erik, Kiviranta, Mikko, Sakai, Kazuhiro, Taralli, Emanuele, Vaccaro, Davide, van der Hulst, Paul, van der Kuur, Jan, van Leeuwen, Bert-Joost, van Loon, Dennis, Wakeham, Nicholas, Auricchio, Natalia, Brienza, Daniele, Cheatom, Oscar, Franssen, Philippe, Julien, Sabine, Mer, Isabelle Le, Moirin, David, Silva, Vitor, Todaro, Michela, Clerc, Nicolas, Coleiro, Alexis, Ptak, Andy, Puccetti, Simonetta, Surace, Christian, Abdoelkariem, Shariefa, Adami, Christophe, Aicardi, Corinne, André, Jérôme, Angelinelli, Matteo, Anvar, Shebli, Arnaldi, Luis Horacio, Attard, Anthony, Audley, Damian, Bancel, Florian, Banks, Kimberly, Bernard, Vivian, de Vaate, Jan Geralt Bij, Bonino, Donata, Bonnamy, Anthony, Bonny, Patrick, Boreux, Charles, Bounab, Ayoub, Brigitte, Maïmouna, Bruijn, Marcel, Brysbaert, Clément, Bulgarelli, Andrea, Calarco, Simona, Camus, Thierry, Canourgues, Florent, Capobianco, Vito, Cardiel, Nicolas, Celasco, Edvige, Chen, Si, Chervenak, James, Chiarello, Fabio, Clamagirand, Sébastien, Coeur-Joly, Odile, Corcione, Leonardo, Coriat, Mickael, Coulet, Anais, Courty, Bernard, Coynel, Alexandre, D'Ai, Antonino, Dambrauskas, Eugenio, D'anca, Fabio, Dauner, Lea, De Gerone, Matteo, DeNigris, Natalie, Dercksen, Johannes, de Wit, Martin, Dieleman, Pieter, DiPirro, Michael, Doumayrou, Eric, Duband, Lionel, Dubbeldam, Luc, Dupieux, Michel, Dupourqué, Simon, Durand, Jean Louis, Eckert, Dominique, Ferrando, Philippe, Barusso, Lorenzo Ferrari, Finkbeiner, Fred, Fiocchi, Mariateresa, Fossecave, Hervé, Gabici, Stefano, Gallucci, Giovanni, Gant, Florent, Gao, Jian-Rong, Gastaldello, Fabio, Genolet, Ludovic, Ghizzardi, Simona, Giovannini, Elisa, Giustini, Margherita, Givaudan, Alain, Godet, Olivier, Gomez, Alicia, Gonzalez, Raoul, Gozaliasl, Ghassem, Grandsire, Laurent, Granena, David, Gros, Michel, Guerin, Corentin, Guilhem, Emmanuel, Guizzo, Gian Paolo, Gu, Liyi, Irwin, Kent, Jacquey, Christian, Janiuk, Agnieszka, Jaubert, Jean, Jolly, Antoine, Jourdan, Thierry, Knödlseder, Jürgen, König, Ole, Korb, Andrew, Kreykenbohm, Ingo, Lafforgue, David, Lan, Radek, Larrieu, Maélyss, Laudet, Philippe, Laurent, Philippe, Laurent, Sylvain, Laurenza, Monica, Cam, Maël Le, Lesrel, Jean, Ligori, Sebastiano, Lorenz, Maximilian, Luminari, Alfredo, Madsen, Kristin, Maisonnave, Océane, Marelli, Lorenzo, Marty, Wilfried, Massida, Zoé, Massonet, Didier, Maussang, Irwin, Alonso, Pablo Eleazar Merino, Mesquida, Jean, Mineo, Teresa, Montinaro, Nicola, Murat, David, Nagayoshi, Kenichiro, Nazé, Yaël, Noguès, Loïc, Nouals, François, Ortega, Cristina, Panessa, Francesca, Parodi, Luigi, Piconcelli, Enrico, Pinto, Ciro, Porquet, Delphine, Prouvé, Thomas, Punch, Michael, Rioland, Guillaume, Riollet, Marc-Olivier, Rodriguez, Louis, Roig, Anton, Roncarelli, Mauro, Roucayrol, Lionel, Roudil, Gilles, de Ocenda, Lander Ruiz, Sciortino, Luisa, Simonella, Olivier, Sordet, Michael, Taubenschuss, Ulrich, Terrasa, Guilhem, Terrier, Régis, Ubertini, Pietro, Uhlir, Ludek, Uslenghi, Michela, van Weers, Henk, Varisco, Salvatore, Varniere, Peggy, Volpe, Angela, Walmsley, Gavin, Wise, Michael, Wolnievik, Andreas, Woźniak, Grzegorz
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Published: 2025
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author Peille, Philippe
Barret, Didier
Cucchetti, Edoardo
Albouys, Vincent
Piro, Luigi
Simionescu, Aurora
Cappi, Massimo
Bellouard, Elise
Cénac-Morthé, Céline
Daniel, Christophe
Pradines, Alice
Finoguenov, Alexis
Kelley, Richard
Mas-Hesse, J. Miguel
Paltani, Stéphane
Rauw, Gregor
Rozanska, Agata
Svoboda, Jiri
Wilms, Joern
Audard, Marc
Bozzo, Enrico
Costantini, Elisa
Dadina, Mauro
Dauser, Thomas
Decourchelle, Anne
Herder, Jan-Willem den
Goldwurm, Andrea
Jonker, Peter
Markowitz, Alex
Mendez, Mariano
Miniutti, Giovanni
Molendi, Silvano
Nicastro, Fabrizio
Pajot, François
Pointecouteau, Etienne
Pratt, Gabriel W.
Schaye, Joop
Vink, Jacco
Webb, Natalie
Bandler, Simon
Barbera, Marco
Ceballos, Maria Teresa
Charles, Ivan
Hartog, Roland den
Doriese, W. Bertrand
Duval, Jean-Marc
Gatti, Flavio
Jackson, Brian
Kilbourne, Caroline
Macculi, Claudio
Martin, Sylvain
Parot, Yann
Porter, Frederick
Prêle, Damien
Ravera, Laurent
Smith, Stephen
Soucek, Jan
Thibert, Tanguy
Tuominen, Eija
Acero, Fabio
Ettori, Stefano
Grosso, Nicolas
Kaastra, Jelle
Mazzotta, Pasquale
Miller, Jon
Sciortino, Salvatore
Beaumont, Sophie
D'Andrea, Matteo
de Plaa, Jelle
Eckart, Megan
Gottardi, Luciano
Leutenegger, Maurice
Lotti, Simone
Molin, Alexei
Natalucci, Lorenzo
Adil, Muhammad Qazi
Argan, Andrea
Cavazzuti, Elisabetta
Fiorini, Mauro
Khosropanah, Pourya
Villegas, Eduardo Medinaceli
Minervini, Gabriele
Perry, James
Pinsard, Frederic
Raulin, Desi
Rigano, Manuela
Roelfsema, Peter
Schwander, Denis
Terron, Santiago
Torrioli, Guido
Ullom, Joel
Zuchniak, Monika
Chaoul, Laurence
Torrejon, Jose Miguel
Brachet, Frank
Cobo, Beatriz
Durkin, Malcolm
Fioretti, Valentina
Geoffray, Hervé
Jacques, Lionel
Kirsch, Christian
Cicero, Ugo Lo
Adams, Joseph
Gloaguen, Emilie
Gonzalez, Manuel
Hull, Samuel
Jellyman, Erik
Kiviranta, Mikko
Sakai, Kazuhiro
Taralli, Emanuele
Vaccaro, Davide
van der Hulst, Paul
van der Kuur, Jan
van Leeuwen, Bert-Joost
van Loon, Dennis
Wakeham, Nicholas
Auricchio, Natalia
Brienza, Daniele
Cheatom, Oscar
Franssen, Philippe
Julien, Sabine
Mer, Isabelle Le
Moirin, David
Silva, Vitor
Todaro, Michela
Clerc, Nicolas
Coleiro, Alexis
Ptak, Andy
Puccetti, Simonetta
Surace, Christian
Abdoelkariem, Shariefa
Adami, Christophe
Aicardi, Corinne
André, Jérôme
Angelinelli, Matteo
Anvar, Shebli
Arnaldi, Luis Horacio
Attard, Anthony
Audley, Damian
Bancel, Florian
Banks, Kimberly
Bernard, Vivian
de Vaate, Jan Geralt Bij
Bonino, Donata
Bonnamy, Anthony
Bonny, Patrick
Boreux, Charles
Bounab, Ayoub
Brigitte, Maïmouna
Bruijn, Marcel
Brysbaert, Clément
Bulgarelli, Andrea
Calarco, Simona
Camus, Thierry
Canourgues, Florent
Capobianco, Vito
Cardiel, Nicolas
Celasco, Edvige
Chen, Si
Chervenak, James
Chiarello, Fabio
Clamagirand, Sébastien
Coeur-Joly, Odile
Corcione, Leonardo
Coriat, Mickael
Coulet, Anais
Courty, Bernard
Coynel, Alexandre
D'Ai, Antonino
Dambrauskas, Eugenio
D'anca, Fabio
Dauner, Lea
De Gerone, Matteo
DeNigris, Natalie
Dercksen, Johannes
de Wit, Martin
Dieleman, Pieter
DiPirro, Michael
Doumayrou, Eric
Duband, Lionel
Dubbeldam, Luc
Dupieux, Michel
Dupourqué, Simon
Durand, Jean Louis
Eckert, Dominique
Ferrando, Philippe
Barusso, Lorenzo Ferrari
Finkbeiner, Fred
Fiocchi, Mariateresa
Fossecave, Hervé
Gabici, Stefano
Gallucci, Giovanni
Gant, Florent
Gao, Jian-Rong
Gastaldello, Fabio
Genolet, Ludovic
Ghizzardi, Simona
Giovannini, Elisa
Giustini, Margherita
Givaudan, Alain
Godet, Olivier
Gomez, Alicia
Gonzalez, Raoul
Gozaliasl, Ghassem
Grandsire, Laurent
Granena, David
Gros, Michel
Guerin, Corentin
Guilhem, Emmanuel
Guizzo, Gian Paolo
Gu, Liyi
Irwin, Kent
Jacquey, Christian
Janiuk, Agnieszka
Jaubert, Jean
Jolly, Antoine
Jourdan, Thierry
Knödlseder, Jürgen
König, Ole
Korb, Andrew
Kreykenbohm, Ingo
Lafforgue, David
Lan, Radek
Larrieu, Maélyss
Laudet, Philippe
Laurent, Philippe
Laurent, Sylvain
Laurenza, Monica
Cam, Maël Le
Lesrel, Jean
Ligori, Sebastiano
Lorenz, Maximilian
Luminari, Alfredo
Madsen, Kristin
Maisonnave, Océane
Marelli, Lorenzo
Marty, Wilfried
Massida, Zoé
Massonet, Didier
Maussang, Irwin
Alonso, Pablo Eleazar Merino
Mesquida, Jean
Mineo, Teresa
Montinaro, Nicola
Murat, David
Nagayoshi, Kenichiro
Nazé, Yaël
Noguès, Loïc
Nouals, François
Ortega, Cristina
Panessa, Francesca
Parodi, Luigi
Piconcelli, Enrico
Pinto, Ciro
Porquet, Delphine
Prouvé, Thomas
Punch, Michael
Rioland, Guillaume
Riollet, Marc-Olivier
Rodriguez, Louis
Roig, Anton
Roncarelli, Mauro
Roucayrol, Lionel
Roudil, Gilles
de Ocenda, Lander Ruiz
Sciortino, Luisa
Simonella, Olivier
Sordet, Michael
Taubenschuss, Ulrich
Terrasa, Guilhem
Terrier, Régis
Ubertini, Pietro
Uhlir, Ludek
Uslenghi, Michela
van Weers, Henk
Varisco, Salvatore
Varniere, Peggy
Volpe, Angela
Walmsley, Gavin
Wise, Michael
Wolnievik, Andreas
Woźniak, Grzegorz
author_facet Peille, Philippe
Barret, Didier
Cucchetti, Edoardo
Albouys, Vincent
Piro, Luigi
Simionescu, Aurora
Cappi, Massimo
Bellouard, Elise
Cénac-Morthé, Céline
Daniel, Christophe
Pradines, Alice
Finoguenov, Alexis
Kelley, Richard
Mas-Hesse, J. Miguel
Paltani, Stéphane
Rauw, Gregor
Rozanska, Agata
Svoboda, Jiri
Wilms, Joern
Audard, Marc
Bozzo, Enrico
Costantini, Elisa
Dadina, Mauro
Dauser, Thomas
Decourchelle, Anne
Herder, Jan-Willem den
Goldwurm, Andrea
Jonker, Peter
Markowitz, Alex
Mendez, Mariano
Miniutti, Giovanni
Molendi, Silvano
Nicastro, Fabrizio
Pajot, François
Pointecouteau, Etienne
Pratt, Gabriel W.
Schaye, Joop
Vink, Jacco
Webb, Natalie
Bandler, Simon
Barbera, Marco
Ceballos, Maria Teresa
Charles, Ivan
Hartog, Roland den
Doriese, W. Bertrand
Duval, Jean-Marc
Gatti, Flavio
Jackson, Brian
Kilbourne, Caroline
Macculi, Claudio
Martin, Sylvain
Parot, Yann
Porter, Frederick
Prêle, Damien
Ravera, Laurent
Smith, Stephen
Soucek, Jan
Thibert, Tanguy
Tuominen, Eija
Acero, Fabio
Ettori, Stefano
Grosso, Nicolas
Kaastra, Jelle
Mazzotta, Pasquale
Miller, Jon
Sciortino, Salvatore
Beaumont, Sophie
D'Andrea, Matteo
de Plaa, Jelle
Eckart, Megan
Gottardi, Luciano
Leutenegger, Maurice
Lotti, Simone
Molin, Alexei
Natalucci, Lorenzo
Adil, Muhammad Qazi
Argan, Andrea
Cavazzuti, Elisabetta
Fiorini, Mauro
Khosropanah, Pourya
Villegas, Eduardo Medinaceli
Minervini, Gabriele
Perry, James
Pinsard, Frederic
Raulin, Desi
Rigano, Manuela
Roelfsema, Peter
Schwander, Denis
Terron, Santiago
Torrioli, Guido
Ullom, Joel
Zuchniak, Monika
Chaoul, Laurence
Torrejon, Jose Miguel
Brachet, Frank
Cobo, Beatriz
Durkin, Malcolm
Fioretti, Valentina
Geoffray, Hervé
Jacques, Lionel
Kirsch, Christian
Cicero, Ugo Lo
Adams, Joseph
Gloaguen, Emilie
Gonzalez, Manuel
Hull, Samuel
Jellyman, Erik
Kiviranta, Mikko
Sakai, Kazuhiro
Taralli, Emanuele
Vaccaro, Davide
van der Hulst, Paul
van der Kuur, Jan
van Leeuwen, Bert-Joost
van Loon, Dennis
Wakeham, Nicholas
Auricchio, Natalia
Brienza, Daniele
Cheatom, Oscar
Franssen, Philippe
Julien, Sabine
Mer, Isabelle Le
Moirin, David
Silva, Vitor
Todaro, Michela
Clerc, Nicolas
Coleiro, Alexis
Ptak, Andy
Puccetti, Simonetta
Surace, Christian
Abdoelkariem, Shariefa
Adami, Christophe
Aicardi, Corinne
André, Jérôme
Angelinelli, Matteo
Anvar, Shebli
Arnaldi, Luis Horacio
Attard, Anthony
Audley, Damian
Bancel, Florian
Banks, Kimberly
Bernard, Vivian
de Vaate, Jan Geralt Bij
Bonino, Donata
Bonnamy, Anthony
Bonny, Patrick
Boreux, Charles
Bounab, Ayoub
Brigitte, Maïmouna
Bruijn, Marcel
Brysbaert, Clément
Bulgarelli, Andrea
Calarco, Simona
Camus, Thierry
Canourgues, Florent
Capobianco, Vito
Cardiel, Nicolas
Celasco, Edvige
Chen, Si
Chervenak, James
Chiarello, Fabio
Clamagirand, Sébastien
Coeur-Joly, Odile
Corcione, Leonardo
Coriat, Mickael
Coulet, Anais
Courty, Bernard
Coynel, Alexandre
D'Ai, Antonino
Dambrauskas, Eugenio
D'anca, Fabio
Dauner, Lea
De Gerone, Matteo
DeNigris, Natalie
Dercksen, Johannes
de Wit, Martin
Dieleman, Pieter
DiPirro, Michael
Doumayrou, Eric
Duband, Lionel
Dubbeldam, Luc
Dupieux, Michel
Dupourqué, Simon
Durand, Jean Louis
Eckert, Dominique
Ferrando, Philippe
Barusso, Lorenzo Ferrari
Finkbeiner, Fred
Fiocchi, Mariateresa
Fossecave, Hervé
Gabici, Stefano
Gallucci, Giovanni
Gant, Florent
Gao, Jian-Rong
Gastaldello, Fabio
Genolet, Ludovic
Ghizzardi, Simona
Giovannini, Elisa
Giustini, Margherita
Givaudan, Alain
Godet, Olivier
Gomez, Alicia
Gonzalez, Raoul
Gozaliasl, Ghassem
Grandsire, Laurent
Granena, David
Gros, Michel
Guerin, Corentin
Guilhem, Emmanuel
Guizzo, Gian Paolo
Gu, Liyi
Irwin, Kent
Jacquey, Christian
Janiuk, Agnieszka
Jaubert, Jean
Jolly, Antoine
Jourdan, Thierry
Knödlseder, Jürgen
König, Ole
Korb, Andrew
Kreykenbohm, Ingo
Lafforgue, David
Lan, Radek
Larrieu, Maélyss
Laudet, Philippe
Laurent, Philippe
Laurent, Sylvain
Laurenza, Monica
Cam, Maël Le
Lesrel, Jean
Ligori, Sebastiano
Lorenz, Maximilian
Luminari, Alfredo
Madsen, Kristin
Maisonnave, Océane
Marelli, Lorenzo
Marty, Wilfried
Massida, Zoé
Massonet, Didier
Maussang, Irwin
Alonso, Pablo Eleazar Merino
Mesquida, Jean
Mineo, Teresa
Montinaro, Nicola
Murat, David
Nagayoshi, Kenichiro
Nazé, Yaël
Noguès, Loïc
Nouals, François
Ortega, Cristina
Panessa, Francesca
Parodi, Luigi
Piconcelli, Enrico
Pinto, Ciro
Porquet, Delphine
Prouvé, Thomas
Punch, Michael
Rioland, Guillaume
Riollet, Marc-Olivier
Rodriguez, Louis
Roig, Anton
Roncarelli, Mauro
Roucayrol, Lionel
Roudil, Gilles
de Ocenda, Lander Ruiz
Sciortino, Luisa
Simonella, Olivier
Sordet, Michael
Taubenschuss, Ulrich
Terrasa, Guilhem
Terrier, Régis
Ubertini, Pietro
Uhlir, Ludek
Uslenghi, Michela
van Weers, Henk
Varisco, Salvatore
Varniere, Peggy
Volpe, Angela
Walmsley, Gavin
Wise, Michael
Wolnievik, Andreas
Woźniak, Grzegorz
contents The Athena mission entered a redefinition phase in July 2022, driven by the imperative to reduce the mission cost at completion for the European Space Agency below an acceptable target, while maintaining the flagship nature of its science return. This notably called for a complete redesign of the X-ray Integral Field Unit (X-IFU) cryogenic architecture towards a simpler active cooling chain. Passive cooling via successive radiative panels at spacecraft level is now used to provide a 50 K thermal environment to an X-IFU owned cryostat. 4.5 K cooling is achieved via a single remote active cryocooler unit, while a multi-stage Adiabatic Demagnetization Refrigerator ensures heat lift down to the 50 mK required by the detectors. Amidst these changes, the core concept of the readout chain remains robust, employing Transition Edge Sensor microcalorimeters and a SQUID-based Time-Division Multiplexing scheme. Noteworthy is the introduction of a slower pixel. This enables an increase in the multiplexing factor (from 34 to 48) without compromising the instrument energy resolution, hence keeping significant system margins to the new 4 eV resolution requirement. This allows reducing the number of channels by more than a factor two, and thus the resource demands on the system, while keeping a 4' field of view (compared to 5' before). In this article, we will give an overview of this new architecture, before detailing its anticipated performances. Finally, we will present the new X-IFU schedule, with its short term focus on demonstration activities towards a mission adoption in early 2027.
format Preprint
id arxiv_https___arxiv_org_abs_2502_10866
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The X-ray Integral Field Unit at the end of the Athena reformulation phase
Peille, Philippe
Barret, Didier
Cucchetti, Edoardo
Albouys, Vincent
Piro, Luigi
Simionescu, Aurora
Cappi, Massimo
Bellouard, Elise
Cénac-Morthé, Céline
Daniel, Christophe
Pradines, Alice
Finoguenov, Alexis
Kelley, Richard
Mas-Hesse, J. Miguel
Paltani, Stéphane
Rauw, Gregor
Rozanska, Agata
Svoboda, Jiri
Wilms, Joern
Audard, Marc
Bozzo, Enrico
Costantini, Elisa
Dadina, Mauro
Dauser, Thomas
Decourchelle, Anne
Herder, Jan-Willem den
Goldwurm, Andrea
Jonker, Peter
Markowitz, Alex
Mendez, Mariano
Miniutti, Giovanni
Molendi, Silvano
Nicastro, Fabrizio
Pajot, François
Pointecouteau, Etienne
Pratt, Gabriel W.
Schaye, Joop
Vink, Jacco
Webb, Natalie
Bandler, Simon
Barbera, Marco
Ceballos, Maria Teresa
Charles, Ivan
Hartog, Roland den
Doriese, W. Bertrand
Duval, Jean-Marc
Gatti, Flavio
Jackson, Brian
Kilbourne, Caroline
Macculi, Claudio
Martin, Sylvain
Parot, Yann
Porter, Frederick
Prêle, Damien
Ravera, Laurent
Smith, Stephen
Soucek, Jan
Thibert, Tanguy
Tuominen, Eija
Acero, Fabio
Ettori, Stefano
Grosso, Nicolas
Kaastra, Jelle
Mazzotta, Pasquale
Miller, Jon
Sciortino, Salvatore
Beaumont, Sophie
D'Andrea, Matteo
de Plaa, Jelle
Eckart, Megan
Gottardi, Luciano
Leutenegger, Maurice
Lotti, Simone
Molin, Alexei
Natalucci, Lorenzo
Adil, Muhammad Qazi
Argan, Andrea
Cavazzuti, Elisabetta
Fiorini, Mauro
Khosropanah, Pourya
Villegas, Eduardo Medinaceli
Minervini, Gabriele
Perry, James
Pinsard, Frederic
Raulin, Desi
Rigano, Manuela
Roelfsema, Peter
Schwander, Denis
Terron, Santiago
Torrioli, Guido
Ullom, Joel
Zuchniak, Monika
Chaoul, Laurence
Torrejon, Jose Miguel
Brachet, Frank
Cobo, Beatriz
Durkin, Malcolm
Fioretti, Valentina
Geoffray, Hervé
Jacques, Lionel
Kirsch, Christian
Cicero, Ugo Lo
Adams, Joseph
Gloaguen, Emilie
Gonzalez, Manuel
Hull, Samuel
Jellyman, Erik
Kiviranta, Mikko
Sakai, Kazuhiro
Taralli, Emanuele
Vaccaro, Davide
van der Hulst, Paul
van der Kuur, Jan
van Leeuwen, Bert-Joost
van Loon, Dennis
Wakeham, Nicholas
Auricchio, Natalia
Brienza, Daniele
Cheatom, Oscar
Franssen, Philippe
Julien, Sabine
Mer, Isabelle Le
Moirin, David
Silva, Vitor
Todaro, Michela
Clerc, Nicolas
Coleiro, Alexis
Ptak, Andy
Puccetti, Simonetta
Surace, Christian
Abdoelkariem, Shariefa
Adami, Christophe
Aicardi, Corinne
André, Jérôme
Angelinelli, Matteo
Anvar, Shebli
Arnaldi, Luis Horacio
Attard, Anthony
Audley, Damian
Bancel, Florian
Banks, Kimberly
Bernard, Vivian
de Vaate, Jan Geralt Bij
Bonino, Donata
Bonnamy, Anthony
Bonny, Patrick
Boreux, Charles
Bounab, Ayoub
Brigitte, Maïmouna
Bruijn, Marcel
Brysbaert, Clément
Bulgarelli, Andrea
Calarco, Simona
Camus, Thierry
Canourgues, Florent
Capobianco, Vito
Cardiel, Nicolas
Celasco, Edvige
Chen, Si
Chervenak, James
Chiarello, Fabio
Clamagirand, Sébastien
Coeur-Joly, Odile
Corcione, Leonardo
Coriat, Mickael
Coulet, Anais
Courty, Bernard
Coynel, Alexandre
D'Ai, Antonino
Dambrauskas, Eugenio
D'anca, Fabio
Dauner, Lea
De Gerone, Matteo
DeNigris, Natalie
Dercksen, Johannes
de Wit, Martin
Dieleman, Pieter
DiPirro, Michael
Doumayrou, Eric
Duband, Lionel
Dubbeldam, Luc
Dupieux, Michel
Dupourqué, Simon
Durand, Jean Louis
Eckert, Dominique
Ferrando, Philippe
Barusso, Lorenzo Ferrari
Finkbeiner, Fred
Fiocchi, Mariateresa
Fossecave, Hervé
Gabici, Stefano
Gallucci, Giovanni
Gant, Florent
Gao, Jian-Rong
Gastaldello, Fabio
Genolet, Ludovic
Ghizzardi, Simona
Giovannini, Elisa
Giustini, Margherita
Givaudan, Alain
Godet, Olivier
Gomez, Alicia
Gonzalez, Raoul
Gozaliasl, Ghassem
Grandsire, Laurent
Granena, David
Gros, Michel
Guerin, Corentin
Guilhem, Emmanuel
Guizzo, Gian Paolo
Gu, Liyi
Irwin, Kent
Jacquey, Christian
Janiuk, Agnieszka
Jaubert, Jean
Jolly, Antoine
Jourdan, Thierry
Knödlseder, Jürgen
König, Ole
Korb, Andrew
Kreykenbohm, Ingo
Lafforgue, David
Lan, Radek
Larrieu, Maélyss
Laudet, Philippe
Laurent, Philippe
Laurent, Sylvain
Laurenza, Monica
Cam, Maël Le
Lesrel, Jean
Ligori, Sebastiano
Lorenz, Maximilian
Luminari, Alfredo
Madsen, Kristin
Maisonnave, Océane
Marelli, Lorenzo
Marty, Wilfried
Massida, Zoé
Massonet, Didier
Maussang, Irwin
Alonso, Pablo Eleazar Merino
Mesquida, Jean
Mineo, Teresa
Montinaro, Nicola
Murat, David
Nagayoshi, Kenichiro
Nazé, Yaël
Noguès, Loïc
Nouals, François
Ortega, Cristina
Panessa, Francesca
Parodi, Luigi
Piconcelli, Enrico
Pinto, Ciro
Porquet, Delphine
Prouvé, Thomas
Punch, Michael
Rioland, Guillaume
Riollet, Marc-Olivier
Rodriguez, Louis
Roig, Anton
Roncarelli, Mauro
Roucayrol, Lionel
Roudil, Gilles
de Ocenda, Lander Ruiz
Sciortino, Luisa
Simonella, Olivier
Sordet, Michael
Taubenschuss, Ulrich
Terrasa, Guilhem
Terrier, Régis
Ubertini, Pietro
Uhlir, Ludek
Uslenghi, Michela
van Weers, Henk
Varisco, Salvatore
Varniere, Peggy
Volpe, Angela
Walmsley, Gavin
Wise, Michael
Wolnievik, Andreas
Woźniak, Grzegorz
Instrumentation and Methods for Astrophysics
Astrophysics of Galaxies
High Energy Astrophysical Phenomena
Solar and Stellar Astrophysics
The Athena mission entered a redefinition phase in July 2022, driven by the imperative to reduce the mission cost at completion for the European Space Agency below an acceptable target, while maintaining the flagship nature of its science return. This notably called for a complete redesign of the X-ray Integral Field Unit (X-IFU) cryogenic architecture towards a simpler active cooling chain. Passive cooling via successive radiative panels at spacecraft level is now used to provide a 50 K thermal environment to an X-IFU owned cryostat. 4.5 K cooling is achieved via a single remote active cryocooler unit, while a multi-stage Adiabatic Demagnetization Refrigerator ensures heat lift down to the 50 mK required by the detectors. Amidst these changes, the core concept of the readout chain remains robust, employing Transition Edge Sensor microcalorimeters and a SQUID-based Time-Division Multiplexing scheme. Noteworthy is the introduction of a slower pixel. This enables an increase in the multiplexing factor (from 34 to 48) without compromising the instrument energy resolution, hence keeping significant system margins to the new 4 eV resolution requirement. This allows reducing the number of channels by more than a factor two, and thus the resource demands on the system, while keeping a 4' field of view (compared to 5' before). In this article, we will give an overview of this new architecture, before detailing its anticipated performances. Finally, we will present the new X-IFU schedule, with its short term focus on demonstration activities towards a mission adoption in early 2027.
title The X-ray Integral Field Unit at the end of the Athena reformulation phase
topic Instrumentation and Methods for Astrophysics
Astrophysics of Galaxies
High Energy Astrophysical Phenomena
Solar and Stellar Astrophysics
url https://arxiv.org/abs/2502.10866