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1. Gravitational Waves from Double White Dwarfs as probes of the Milky Way

Author

Georgousi, Maria, Karnesis, Nikolaos, Korol, Valeriya, Pieroni, Mauro, and Stergioulas, Nikolaos

Subjects
Astrophysics - Astrophysics of Galaxies, General Relativity and Quantum Cosmology, Physics - Data Analysis, Statistics and Probability, Physics - Space Physics
Abstract

Future gravitational wave detectors, such as the Laser Interferometer Space Antenna (\textit{LISA}), will be able to resolve a significant number of the ultra compact stellar-mass binaries in our own Galaxy and its neighborhood. These will be mostly double white dwarf (DWD) binaries, and their underlying population characteristics can be directly correlated to the different properties of the Galaxy. In particular, with \textit{LISA} we will be able to resolve $\sim\mathcal{O}(10^4)$ binaries, while the rest will generate a confusion foreground signal. Analogously to how the total electromagnetic radiation emitted by a galaxy can be related to the underlying total stellar mass, in this work we propose a framework to infer the same quantity by investigating the spectral shape and amplitude of the confusion foreground signal. For a fixed DWD evolution model, and thus a fixed binary fraction, we retrieve percentage-level relative errors on the total stellar mass, which improves for increasing values of the mass. At the same time, we find that variations in the Milky Way shape, at a fixed mass and at scale heights smaller than 500~pc, are not distinguishable based on the shape of stochastic signal alone. We perform this analysis on simulations of the LISA data, estimating the resolvable sources based on signal-to-noise criteria. Finally, we utilize the catalogue of resolvable sources to probe the characteristics of the underlying population of DWD binaries. We show that the DWD frequency, coalescence time and chirp mass (up to $<0.7\,$M$_\odot$) distributions can be reconstructed from \textit{LISA} data with no bias., Comment: 15 pages, 9 figures

Published
2022
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2. Cold Atoms in Space: Community Workshop Summary and Proposed Road-Map

Author

Alonso, Ivan, Alpigiani, Cristiano, Altschul, Brett, Araujo, Henrique, Arduini, Gianluigi, Arlt, Jan, Badurina, Leonardo, Balaz, Antun, Bandarupally, Satvika, Barone, Barry C Barish Michele, Barsanti, Michele, Bass, Steven, Bassi, Angelo, Battelier, Baptiste, Baynham, Charles F. A., Beaufils, Quentin, Belic, Aleksandar, Berge, Joel, Bernabeu, Jose, Bertoldi, Andrea, Bingham, Robert, Bize, Sebastien, Blas, Diego, Bongs, Kai, Bouyer, Philippe, Braitenberg, Carla, Brand, Christian, Braxmaier, Claus, Bresson, Alexandre, Buchmueller, Oliver, Budker, Dmitry, Bugalho, Luıs, Burdin, Sergey, Callegari, Luigi Cacciapuoti Simone, Calmet, Xavier, Calonico, Davide, Canuel, Benjamin, Caramete, Laurentiu-Ioan, Carraz, Olivier, Cassettari, Donatella, Chakraborty, Pratik, Chattopadhyay, Swapan, Chauhan, Upasna, Chen, Xuzong, Chen, Yu-Ao, Chiofalo, Maria Luisa, Coleman, Jonathon, Corgier, Robin, Cotter, J. P., Cruise, A. Michael, Cui, Yanou, Davies, Gavin, De Roeck, Albert, Demarteau, Marcel, Derevianko, Andrei, Di Clemente, Marco, Djordjevic, Goran S., Donadi, Sandro, Dore, Olivier, Dornan, Peter, Doser, Michael, Drougakis, Giannis, Dunningham, Jacob, Easo, Sajan, Eby, Joshua, Elertas, Gedminas, Ellis, John, Evans, David, Examilioti, Pandora, Fadeev, Pavel, Fanı, Mattia, Fassi, Farida, Fattori, Marco, Fedderke, Michael A., Felea, Daniel, Feng, Chen-Hao, Ferreras, Jorge, Flack, Robert, Flambaum, Victor V., Forsberg, Rene, Fromhold, Mark, Gaaloul, Naceur, Garraway, Barry M., Georgousi, Maria, Geraci, Andrew, Gibble, Kurt, Gibson, Valerie, Gill, Patrick, Giudice, Gian F., Goldwin, Jon, Gould, Oliver, Grachov, Oleg, Graham, Peter W., Grasso, Dario, Griffin, Paul F., Guerlin, Christine, Gundogan, Mustafa, Gupta, Ratnesh K, Haehnelt, Martin, Hanımeli, Ekim T., Hawkins, Leonie, Hees, Aurelien, Henderson, Victoria A., Herr, Waldemar, Herrmann, Sven, Hird, Thomas, Hobson, Richard, Hock, Vincent, Hogan, Jason M., Holst, Bodil, Holynski, Michael, Israelsson, Ulf, Jeglic, Peter, Jetzer, Philippe, Juzeliunas, Gediminas, Kaltenbaek, Rainer, Kamenik, Jernej F., Kehagias, Alex, Kirova, Teodora, Kiss-Toth, Marton, Koke, Sebastian, Kolkowitz, Shimon, Kornakov, Georgy, Kovachy, Tim, Krutzik, Markus, Kumar, Mukesh, Kumar, Pradeep, Lammerzahl, Claus, Landsberg, Greg, Poncin-Lafitte, Christophe Le, Leibrandt, David R., Leveque, Thomas, Lewicki, Marek, Li, Rui, Lipniacka, Anna, Liu, Christian Lisdat Mia, Lopez-Gonzalez, J. L., Loriani, Sina, Louko, Jorma, Luciano, Giuseppe Gaetano, Lundblad, Nathan, Maddox, Steve, Mahmoud, M. A., Maleknejad, Azadeh, March-Russell, John, Massonnet, Didier, McCabe, Christopher, Meister, Matthias, Meznarsic, Tadej, Micalizio, Salvatore, Migliaccio, Federica, Millington, Peter, Milosevic, Milan, Mitchell, Jeremiah, Morley, Gavin W., Muller, Jurgen, Murphy, Eamonn, Mustecaplıoglu, Ozgur E., OShea, Val, Oi, Daniel K. L., Olson, Judith, Pal, Debapriya, Papazoglou, Dimitris G., Pasatembou, Elizabeth, Paternostro, Mauro, Pawlowski, Krzysztof, Pelucchi, Emanuele, Santos, Franck Pereira dos, Peters, Achim, Pikovski, Igor, Pilaftsis, Apostolos, Pinto, Alexandra, Prevedelli, Marco, Puthiya-Veettil, Vishnupriya, Quenby, John, Rafelski, Johann, Rasel, Ernst M., Ravensbergen, Cornelis, Reguzzoni, Mirko, Richaud, Andrea, Riou, Isabelle, Rothacher, Markus, Roura, Albert, Ruschhaupt, Andreas, Sabulsky, Dylan O., Safronova, Marianna, Saltas, Ippocratis D., Salvi, Leonardo, Sameed, Muhammed, Saurabh, Pandey, Schaffer, Stefan, Schiller, Stephan, Schilling, Manuel, Schkolnik, Vladimir, Schlippert, Dennis, Schmidt, Piet O., Schnatz, Harald, Schneider, Jean, Schneider, Ulrich, Schreck, Florian, Schubert, Christian, Shayeghi, Armin, Sherrill, Nathaniel, Shipsey, Ian, Signorini, Carla, Singh, Rajeev, Singh, Yeshpal, Skordis, Constantinos, Smerzi, Augusto, Sopuerta, Carlos F., Sorrentino, Fiodor, Sphicas, Paraskevas, Stadnik, Yevgeny V., Stefanescu, Petruta, Tarallo, Marco G., Tentindo, Silvia, Tino, Guglielmo M., Tinsley, Jonathan N., Tornatore, Vincenza, Treutlein, Philipp, Trombettoni, Andrea, Tsai, Yu-Dai, Tuckey, Philip, Uchida, Melissa A, Valenzuela, Tristan, Bossche, Mathias Van Den, Vaskonen, Ville, Verma, Gunjan, Vetrano, Flavio, Vogt, Christian, von Klitzing, Wolf, Waller, Pierre, Walser, Reinhold, Williams, Eric Wille Jason, Windpassinger, Patrick, Wittrock, Ulric, Wolf, Peter, Woltmann, Marian, Worner, Lisa, Xuereb, Andre, Yahia, Mohamed, Yazgan, Efe, Yu, Nan, Zahzam, Nassim, Cruzeiro, Emmanuel Zambrini, Zhan, Mingsheng, Zou, Xinhao, Zupan, Jure, and Zupanic, Erik

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, General Relativity and Quantum Cosmology, High Energy Physics - Experiment, High Energy Physics - Phenomenology, Physics - Atomic Physics
Abstract

We summarize the discussions at a virtual Community Workshop on Cold Atoms in Space concerning the status of cold atom technologies, the prospective scientific and societal opportunities offered by their deployment in space, and the developments needed before cold atoms could be operated in space. The cold atom technologies discussed include atomic clocks, quantum gravimeters and accelerometers, and atom interferometers. Prospective applications include metrology, geodesy and measurement of terrestrial mass change due to, e.g., climate change, and fundamental science experiments such as tests of the equivalence principle, searches for dark matter, measurements of gravitational waves and tests of quantum mechanics. We review the current status of cold atom technologies and outline the requirements for their space qualification, including the development paths and the corresponding technical milestones, and identifying possible pathfinder missions to pave the way for missions to exploit the full potential of cold atoms in space. Finally, we present a first draft of a possible road-map for achieving these goals, that we propose for discussion by the interested cold atom, Earth Observation, fundamental physics and other prospective scientific user communities, together with ESA and national space and research funding agencies., Comment: Summary of the Community Workshop on Cold Atoms in Space and corresponding Road-map: https://indico.cern.ch/event/1064855/

Published
2022
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4. Cold atoms in space: community workshop summary and proposed road-map

Author

Alonso, Iván, primary, Alpigiani, Cristiano, additional, Altschul, Brett, additional, Araújo, Henrique, additional, Arduini, Gianluigi, additional, Arlt, Jan, additional, Badurina, Leonardo, additional, Balaž, Antun, additional, Bandarupally, Satvika, additional, Barish, Barry C., additional, Barone, Michele, additional, Barsanti, Michele, additional, Bass, Steven, additional, Bassi, Angelo, additional, Battelier, Baptiste, additional, Baynham, Charles F. A., additional, Beaufils, Quentin, additional, Belić, Aleksandar, additional, Bergé, Joel, additional, Bernabeu, Jose, additional, Bertoldi, Andrea, additional, Bingham, Robert, additional, Bize, Sébastien, additional, Blas, Diego, additional, Bongs, Kai, additional, Bouyer, Philippe, additional, Braitenberg, Carla, additional, Brand, Christian, additional, Braxmaier, Claus, additional, Bresson, Alexandre, additional, Buchmueller, Oliver, additional, Budker, Dmitry, additional, Bugalho, Luís, additional, Burdin, Sergey, additional, Cacciapuoti, Luigi, additional, Callegari, Simone, additional, Calmet, Xavier, additional, Calonico, Davide, additional, Canuel, Benjamin, additional, Caramete, Laurentiu-Ioan, additional, Carraz, Olivier, additional, Cassettari, Donatella, additional, Chakraborty, Pratik, additional, Chattopadhyay, Swapan, additional, Chauhan, Upasna, additional, Chen, Xuzong, additional, Chen, Yu-Ao, additional, Chiofalo, Maria Luisa, additional, Coleman, Jonathon, additional, Corgier, Robin, additional, Cotter, J. P., additional, Michael Cruise, A., additional, Cui, Yanou, additional, Davies, Gavin, additional, De Roeck, Albert, additional, Demarteau, Marcel, additional, Derevianko, Andrei, additional, Di Clemente, Marco, additional, Djordjevic, Goran S., additional, Donadi, Sandro, additional, Doré, Olivier, additional, Dornan, Peter, additional, Doser, Michael, additional, Drougakis, Giannis, additional, Dunningham, Jacob, additional, Easo, Sajan, additional, Eby, Joshua, additional, Elertas, Gedminas, additional, Ellis, John, additional, Evans, David, additional, Examilioti, Pandora, additional, Fadeev, Pavel, additional, Fanì, Mattia, additional, Fassi, Farida, additional, Fattori, Marco, additional, Fedderke, Michael A., additional, Felea, Daniel, additional, Feng, Chen-Hao, additional, Ferreras, Jorge, additional, Flack, Robert, additional, Flambaum, Victor V., additional, Forsberg, René, additional, Fromhold, Mark, additional, Gaaloul, Naceur, additional, Garraway, Barry M., additional, Georgousi, Maria, additional, Geraci, Andrew, additional, Gibble, Kurt, additional, Gibson, Valerie, additional, Gill, Patrick, additional, Giudice, Gian F., additional, Goldwin, Jon, additional, Gould, Oliver, additional, Grachov, Oleg, additional, Graham, Peter W., additional, Grasso, Dario, additional, Griffin, Paul F., additional, Guerlin, Christine, additional, Gündoğan, Mustafa, additional, Gupta, Ratnesh K., additional, Haehnelt, Martin, additional, Hanımeli, Ekim T., additional, Hawkins, Leonie, additional, Hees, Aurélien, additional, Henderson, Victoria A., additional, Herr, Waldemar, additional, Herrmann, Sven, additional, Hird, Thomas, additional, Hobson, Richard, additional, Hock, Vincent, additional, Hogan, Jason M., additional, Holst, Bodil, additional, Holynski, Michael, additional, Israelsson, Ulf, additional, Jeglič, Peter, additional, Jetzer, Philippe, additional, Juzeliūnas, Gediminas, additional, Kaltenbaek, Rainer, additional, Kamenik, Jernej F., additional, Kehagias, Alex, additional, Kirova, Teodora, additional, Kiss-Toth, Marton, additional, Koke, Sebastian, additional, Kolkowitz, Shimon, additional, Kornakov, Georgy, additional, Kovachy, Tim, additional, Krutzik, Markus, additional, Kumar, Mukesh, additional, Kumar, Pradeep, additional, Lämmerzahl, Claus, additional, Landsberg, Greg, additional, Le Poncin-Lafitte, Christophe, additional, Leibrandt, David R., additional, Lévèque, Thomas, additional, Lewicki, Marek, additional, Li, Rui, additional, Lipniacka, Anna, additional, Lisdat, Christian, additional, Liu, Mia, additional, Lopez-Gonzalez, J. L., additional, Loriani, Sina, additional, Louko, Jorma, additional, Luciano, Giuseppe Gaetano, additional, Lundblad, Nathan, additional, Maddox, Steve, additional, Mahmoud, M. A., additional, Maleknejad, Azadeh, additional, March-Russell, John, additional, Massonnet, Didier, additional, McCabe, Christopher, additional, Meister, Matthias, additional, Mežnaršič, Tadej, additional, Micalizio, Salvatore, additional, Migliaccio, Federica, additional, Millington, Peter, additional, Milosevic, Milan, additional, Mitchell, Jeremiah, additional, Morley, Gavin W., additional, Müller, Jürgen, additional, Murphy, Eamonn, additional, Müstecaplıoğlu, Özgür E., additional, O’Shea, Val, additional, Oi, Daniel K. L., additional, Olson, Judith, additional, Pal, Debapriya, additional, Papazoglou, Dimitris G., additional, Pasatembou, Elizabeth, additional, Paternostro, Mauro, additional, Pawlowski, Krzysztof, additional, Pelucchi, Emanuele, additional, Pereira dos Santos, Franck, additional, Peters, Achim, additional, Pikovski, Igor, additional, Pilaftsis, Apostolos, additional, Pinto, Alexandra, additional, Prevedelli, Marco, additional, Puthiya-Veettil, Vishnupriya, additional, Quenby, John, additional, Rafelski, Johann, additional, Rasel, Ernst M., additional, Ravensbergen, Cornelis, additional, Reguzzoni, Mirko, additional, Richaud, Andrea, additional, Riou, Isabelle, additional, Rothacher, Markus, additional, Roura, Albert, additional, Ruschhaupt, Andreas, additional, Sabulsky, Dylan O., additional, Safronova, Marianna, additional, Saltas, Ippocratis D., additional, Salvi, Leonardo, additional, Sameed, Muhammed, additional, Saurabh, Pandey, additional, Schäffer, Stefan, additional, Schiller, Stephan, additional, Schilling, Manuel, additional, Schkolnik, Vladimir, additional, Schlippert, Dennis, additional, Schmidt, Piet O., additional, Schnatz, Harald, additional, Schneider, Jean, additional, Schneider, Ulrich, additional, Schreck, Florian, additional, Schubert, Christian, additional, Shayeghi, Armin, additional, Sherrill, Nathaniel, additional, Shipsey, Ian, additional, Signorini, Carla, additional, Singh, Rajeev, additional, Singh, Yeshpal, additional, Skordis, Constantinos, additional, Smerzi, Augusto, additional, Sopuerta, Carlos F., additional, Sorrentino, Fiodor, additional, Sphicas, Paraskevas, additional, Stadnik, Yevgeny V., additional, Stefanescu, Petruta, additional, Tarallo, Marco G., additional, Tentindo, Silvia, additional, Tino, Guglielmo M., additional, Tinsley, Jonathan N., additional, Tornatore, Vincenza, additional, Treutlein, Philipp, additional, Trombettoni, Andrea, additional, Tsai, Yu-Dai, additional, Tuckey, Philip, additional, Uchida, Melissa A., additional, Valenzuela, Tristan, additional, Van Den Bossche, Mathias, additional, Vaskonen, Ville, additional, Verma, Gunjan, additional, Vetrano, Flavio, additional, Vogt, Christian, additional, von Klitzing, Wolf, additional, Waller, Pierre, additional, Walser, Reinhold, additional, Wille, Eric, additional, Williams, Jason, additional, Windpassinger, Patrick, additional, Wittrock, Ulrich, additional, Wolf, Peter, additional, Woltmann, Marian, additional, Wörner, Lisa, additional, Xuereb, André, additional, Yahia, Mohamed, additional, Yazgan, Efe, additional, Yu, Nan, additional, Zahzam, Nassim, additional, Zambrini Cruzeiro, Emmanuel, additional, Zhan, Mingsheng, additional, Zou, Xinhao, additional, Zupan, Jure, additional, and Zupanič, Erik, additional

Published
2022
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5. Cold atoms in space: community workshop summary and proposed road-map

Author

Müstecaplıoğlu, Özgür Esat (ORCID 0000-0002-9134-3951 & YÖK ID 1674), Alonso, Ivan; Alpigiani, Cristiano; Altschul, Brett; Araujo, Henrique; Arduini, Gianluigi; Arlt, Jan; Badurina, Leonardo; Balaz, Antun; Bandarupally, Satvika; Barish, Barry C.; Barone, Michele; Barsanti, Michele; Bass, Steven; Bassi, Angelo; Battelier, Baptiste; Baynham, Charles F. A.; Beaufils, Quentin; Berge, Joel; Bernabeu, Jose; Bertoldi, Andrea; Bingham, Robert; Bize, Sebastien; Blas, Diego; Bongs, Kai; Bouyer, Philippe; Braitenberg, Carla; Brand, Christian; Braxmaier, Claus; Bresson, Alexandre; Buchmueller, Oliver; Budker, Dmitry; Bugalho, Luis; Burdin, Sergey; Cacciapuoti, Luigi; Callegari, Simone; Calmet, Xavier; Calonico, Davide; Canuel, Benjamin; Caramete, Laurentiu-Ioan; Carraz, Olivier; Cassettari, Donatella; Chakraborty, Pratik; Chattopadhyay, Swapan; Chauhan, Upasna; Chen, Xuzong; Chen, Yu-Ao; Chiofalo, Maria Luisa; Coleman, Jonathon; Corgier, Robin; Cotter, J. P.; Cruise, A. Michael; Cui, Yanou; Davies, Gavin; De Roeck, Albert; Demarteau, Marcel; Derevianko, Andrei; Di Clemente, Marco; Djordjevic, Goran S.; Donadi, Sandro; Dore, Olivier; Dornan, Peter; Doser, Michael; Drougakis, Giannis; Dunningham, Jacob; Easo, Sajan; Eby, Joshua; Elertas, Gedminas; Ellis, John; Evans, David; Examilioti, Pandora; Fadeev, Pavel; Fani, Mattia; Fassi, Farida; Fattori, Marco; Fedderke, Michael A.; Felea, Daniel; Feng, Chen-Hao; Ferreras, Jorge; Flack, Robert; Flambaum, Victor V.; Forsberg, Rene; Fromhold, Mark; Gaaloul, Naceur; Garraway, Barry M.; Georgousi, Maria; Geraci, Andrew; Gibble, Kurt; Gibson, Valerie; Gill, Patrick; Giudice, GianF; Goldwin, Jon; Gould, Oliver; Grachov, Oleg; Graham, Peter W.; Grasso, Dario; Griffin, PaulF; Guerlin, Christine; Gupta, Ratnesh K.; Haehnelt, Martin; Hawkins, Leonie; Hees, Aurelien; Henderson, Victoria A.; Herr, Waldemar; Herrmann, Sven; Hird, Thomas; Hobson, Richard; Hock, Vincent; Hogan, Jason M.; Holst, Bodil; Holynski, Michael; Israelsson, Ulf; Jeglic, Peter; Jetzer, Philippe; Juzeliunas, Gediminas; Kaltenbaek, Rainer; Kamenik, College of Sciences, Department of Physics, Müstecaplıoğlu, Özgür Esat (ORCID 0000-0002-9134-3951 & YÖK ID 1674), Alonso, Ivan; Alpigiani, Cristiano; Altschul, Brett; Araujo, Henrique; Arduini, Gianluigi; Arlt, Jan; Badurina, Leonardo; Balaz, Antun; Bandarupally, Satvika; Barish, Barry C.; Barone, Michele; Barsanti, Michele; Bass, Steven; Bassi, Angelo; Battelier, Baptiste; Baynham, Charles F. A.; Beaufils, Quentin; Berge, Joel; Bernabeu, Jose; Bertoldi, Andrea; Bingham, Robert; Bize, Sebastien; Blas, Diego; Bongs, Kai; Bouyer, Philippe; Braitenberg, Carla; Brand, Christian; Braxmaier, Claus; Bresson, Alexandre; Buchmueller, Oliver; Budker, Dmitry; Bugalho, Luis; Burdin, Sergey; Cacciapuoti, Luigi; Callegari, Simone; Calmet, Xavier; Calonico, Davide; Canuel, Benjamin; Caramete, Laurentiu-Ioan; Carraz, Olivier; Cassettari, Donatella; Chakraborty, Pratik; Chattopadhyay, Swapan; Chauhan, Upasna; Chen, Xuzong; Chen, Yu-Ao; Chiofalo, Maria Luisa; Coleman, Jonathon; Corgier, Robin; Cotter, J. P.; Cruise, A. Michael; Cui, Yanou; Davies, Gavin; De Roeck, Albert; Demarteau, Marcel; Derevianko, Andrei; Di Clemente, Marco; Djordjevic, Goran S.; Donadi, Sandro; Dore, Olivier; Dornan, Peter; Doser, Michael; Drougakis, Giannis; Dunningham, Jacob; Easo, Sajan; Eby, Joshua; Elertas, Gedminas; Ellis, John; Evans, David; Examilioti, Pandora; Fadeev, Pavel; Fani, Mattia; Fassi, Farida; Fattori, Marco; Fedderke, Michael A.; Felea, Daniel; Feng, Chen-Hao; Ferreras, Jorge; Flack, Robert; Flambaum, Victor V.; Forsberg, Rene; Fromhold, Mark; Gaaloul, Naceur; Garraway, Barry M.; Georgousi, Maria; Geraci, Andrew; Gibble, Kurt; Gibson, Valerie; Gill, Patrick; Giudice, GianF; Goldwin, Jon; Gould, Oliver; Grachov, Oleg; Graham, Peter W.; Grasso, Dario; Griffin, PaulF; Guerlin, Christine; Gupta, Ratnesh K.; Haehnelt, Martin; Hawkins, Leonie; Hees, Aurelien; Henderson, Victoria A.; Herr, Waldemar; Herrmann, Sven; Hird, Thomas; Hobson, Richard; Hock, Vincent; Hogan, Jason M.; Holst, Bodil; Holynski, Michael; Israelsson, Ulf; Jeglic, Peter; Jetzer, Philippe; Juzeliunas, Gediminas; Kaltenbaek, Rainer; Kamenik, College of Sciences, and Department of Physics

Abstract

We summarise the discussions at a virtual Community Workshop on Cold Atoms in Space concerning the status of cold atom technologies, the prospective scientific and societal opportunities offered by their deployment in space, and the developments needed before cold atoms could be operated in space. The cold atom technologies discussed include atomic clocks, quantum gravimeters and accelerometers, and atom interferometers. Prospective applications include metrology, geodesy and measurement of terrestrial mass change due to, e.g., climate change, and fundamental science experiments such as tests of the equivalence principle, searches for dark matter, measurements of gravitational waves and tests of quantum mechanics. We review the current status of cold atom technologies and outline the requirements for their space qualification, including the development paths and the corresponding technical milestones, and identifying possible pathfinder missions to pave the way for missions to exploit the full potential of cold atoms in space. Finally, we present a first draft of a possible road-map for achieving these goals, that we propose for discussion by the interested cold atom, Earth Observation, fundamental physics and other prospective scientific user communities, together with the European Space Agency (ESA) and national space and research funding agencies., We thank the CERN Quantum Technology Initiative for their support of the workshop that laid the basis for this paper.

Published
2022

6. Gravitational waves from double white dwarfs as probes of the milky way.

Author

Georgousi, Maria, Karnesis, Nikolaos, Korol, Valeriya, Pieroni, Mauro, and Stergioulas, Nikolaos

Subjects
*GRAVITATIONAL waves, *MILKY Way, *GRAVITATIONAL wave detectors, *ELECTROMAGNETIC radiation, *STELLAR mass, *LASER interferometers
Abstract

Future gravitational wave detectors, such as the Laser Interferometer Space Antenna (LISA), will be able to resolve a significant number of the ultra compact stellar-mass binaries in our own Galaxy and its neighbourhood. These will be mostly double white dwarf (DWD) binaries, and their underlying population characteristics can be directly correlated to the different properties of the Galaxy. In particular with LISA , we will be able to resolve |${\sim}\mathcal {O}(10^4)$| binaries, while the rest will generate a confusion foreground signal. Analogously to how the total electromagnetic radiation emitted by a galaxy can be related to the underlying total stellar mass, in this work, we propose a framework to infer the same quantity by investigating the spectral shape and amplitude of the confusion foreground signal. For a fixed DWD evolution model and thus a fixed binary fraction, we retrieve percentage-level relative errors on the total stellar mass, which improves for increasing values of the mass. At the same time, we find that variations in the Milky Way shape at a fixed mass and at scale heights smaller than 500 pc are not distinguishable based on the shape of stochastic signal alone. We perform this analysis on simulations of the LISA data, estimating the resolvable sources based on signal-to-noise criteria. Finally, we utilize the catalogue of resolvable sources to probe the characteristics of the underlying population of DWD binaries. We show that the DWD frequency, coalescence time and chirp mass (up to <0.7 M⊙) distributions can be reconstructed from LISA data with no bias. [ABSTRACT FROM AUTHOR]

Published
2023
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