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23 results on '"Gentile, Fabrizio"'

1. Not-so-little Red Dots:Two Massive and Dusty Starbursts at z ∼ 5–7 Pushing the Limits of Star Formation Discovered by JWST in the COSMOS-Web Survey

Author

Gentile, Fabrizio, Casey, Caitlin M., Akins, Hollis B., Franco, Maximilien, Mckinney, Jed, Berman, Edward, Cooper, Olivia R., Drakos, Nicole E., Hirschmann, Michaela, Long, Arianna S., Magdis, Georgios, Koekemoer, Anton M., Kokorev, Vasily, Shuntov, Marko, Talia, Margherita, Allen, Natalie, Harish, Santosh, Ilbert, Olivier, Mccracken, Henry Joy, Kartaltepe, Jeyhan S., Liu, Daizhong, Paquereau, Louise, Rhodes, Jason, Rich, Michael R., Robertson, Brant E., Toft, Sune, Gozaliasl, Ghassem, Gentile, Fabrizio, Casey, Caitlin M., Akins, Hollis B., Franco, Maximilien, Mckinney, Jed, Berman, Edward, Cooper, Olivia R., Drakos, Nicole E., Hirschmann, Michaela, Long, Arianna S., Magdis, Georgios, Koekemoer, Anton M., Kokorev, Vasily, Shuntov, Marko, Talia, Margherita, Allen, Natalie, Harish, Santosh, Ilbert, Olivier, Mccracken, Henry Joy, Kartaltepe, Jeyhan S., Liu, Daizhong, Paquereau, Louise, Rhodes, Jason, Rich, Michael R., Robertson, Brant E., Toft, Sune, and Gozaliasl, Ghassem

Published
2024

2. Not-so-little red dots: two massive and dusty starbursts at z~5-7 pushing the limits of star formation discovered by JWST in the COSMOS-web survey

Author

Gentile, Fabrizio, Casey, Caitlin M., Akins, Hollis B., Franco, Maximilien, Mckinney, Jed, Berman, Edward, Cooper, Olivia R., Drakos, Nicole E., Hirschmann, Michaela, Long, Arianna S., Magdis, Georgios, Koekemoer, Anton M., Kokorev, Vasily, Shuntov, Marko, Talia, Margherita, Allen, Natalie, Harish, Santosh, Ilbert, Olivier, Mccracken, Henry J., Kartaltepe, Jeyhan S., Liu, Daizhong, Paquereau, Louise, Rhodes, Jason, Rich, Michael R., Robertson, Brant, Toft, Sune, Gozaliasl, Ghassem, Gentile, Fabrizio, Casey, Caitlin M., Akins, Hollis B., Franco, Maximilien, Mckinney, Jed, Berman, Edward, Cooper, Olivia R., Drakos, Nicole E., Hirschmann, Michaela, Long, Arianna S., Magdis, Georgios, Koekemoer, Anton M., Kokorev, Vasily, Shuntov, Marko, Talia, Margherita, Allen, Natalie, Harish, Santosh, Ilbert, Olivier, Mccracken, Henry J., Kartaltepe, Jeyhan S., Liu, Daizhong, Paquereau, Louise, Rhodes, Jason, Rich, Michael R., Robertson, Brant, Toft, Sune, and Gozaliasl, Ghassem

Abstract

We present the properties of two candidate massive (M⋆ ∼ 1011M⊙) and dusty (Av > 2.5 mag) galaxies at z = 5–7 in the first 0.28 deg2 of the COSMOS-Web survey. One object is spectroscopically confirmed at zspec = 5.051, while the other has a robust zphot = 6.7 ± 0.3. Thanks to their extremely red colors (F277W–F444W ∼ 1.7 mag), these galaxies satisfy the nominal color selection for the widely studied "little red dot" (LRD) population with the exception of their spatially resolved morphologies. The morphology of our targets allows us to conclude that their red continuum is dominated by highly obscured stellar emission and not by reddened nuclear activity.

Published
2024

3. Not-so-little Red Dots:Two Massive and Dusty Starbursts at z ∼ 5–7 Pushing the Limits of Star Formation Discovered by JWST in the COSMOS-Web Survey

Author

Gentile, Fabrizio, Casey, Caitlin M., Akins, Hollis B., Franco, Maximilien, Mckinney, Jed, Berman, Edward, Cooper, Olivia R., Drakos, Nicole E., Hirschmann, Michaela, Long, Arianna S., Magdis, Georgios, Koekemoer, Anton M., Kokorev, Vasily, Shuntov, Marko, Talia, Margherita, Allen, Natalie, Harish, Santosh, Ilbert, Olivier, Mccracken, Henry Joy, Kartaltepe, Jeyhan S., Liu, Daizhong, Paquereau, Louise, Rhodes, Jason, Rich, Michael R., Robertson, Brant E., Toft, Sune, Gozaliasl, Ghassem, Gentile, Fabrizio, Casey, Caitlin M., Akins, Hollis B., Franco, Maximilien, Mckinney, Jed, Berman, Edward, Cooper, Olivia R., Drakos, Nicole E., Hirschmann, Michaela, Long, Arianna S., Magdis, Georgios, Koekemoer, Anton M., Kokorev, Vasily, Shuntov, Marko, Talia, Margherita, Allen, Natalie, Harish, Santosh, Ilbert, Olivier, Mccracken, Henry Joy, Kartaltepe, Jeyhan S., Liu, Daizhong, Paquereau, Louise, Rhodes, Jason, Rich, Michael R., Robertson, Brant E., Toft, Sune, and Gozaliasl, Ghassem

Published
2024

4. Dark progenitors and massive descendants: A first ALMA perspective on Radio-Selected NIRdark galaxies in the COSMOS field

Author

Gentile, Fabrizio, Talia, Margherita, Daddi, Emanuele, Giulietti, Marika, Lapi, Andrea, Massardi, Marcella, Pozzi, Francesca, Zamorani, Giovanni, Behiri, Meriem, Enia, Andrea, Bethermin, Matthieu, Dallacasa, Daniele, Delvecchio, Ivan, Faisst, Andreas L., Gruppioni, Carlotta, Loiacono, Federica, Traina, Alberto, Vaccari, Mattia, Vallini, Livia, Vignali, Cristian, Smolcic, Vernesa, Cimatti, Andrea, Gentile, Fabrizio, Talia, Margherita, Daddi, Emanuele, Giulietti, Marika, Lapi, Andrea, Massardi, Marcella, Pozzi, Francesca, Zamorani, Giovanni, Behiri, Meriem, Enia, Andrea, Bethermin, Matthieu, Dallacasa, Daniele, Delvecchio, Ivan, Faisst, Andreas L., Gruppioni, Carlotta, Loiacono, Federica, Traina, Alberto, Vaccari, Mattia, Vallini, Livia, Vignali, Cristian, Smolcic, Vernesa, and Cimatti, Andrea

Abstract

We present the first spectroscopic ALMA follow-up for a pilot sample of nine Radio-Selected NIRdark galaxies in the COSMOS field. These sources were initially selected as radio-detected sources (S(3GHz)>12.65 uJy), lacking an optical/NIR counterpart in the COSMOS2015 catalog (Ks>24.7 mag). Several studies highlighted how this selection could provide a population of highly dust-obscured, massive, and star-bursting galaxies. With these new ALMA observations, we assess the spectroscopic redshifts of this pilot sample of sources and improve the quality of the physical properties estimated through SED-fitting. Moreover, we measure the quantity of molecular gas present inside these galaxies and forecast their potential evolutionary path, finding that the RS-NIRdark galaxies could represent a likely population of high-z progenitors of the massive and passive galaxies discovered at z~3. Finally, we present some initial constraints on the kinematics of the ISM within the analyzed galaxies, reporting a high fraction (~55%) of double-peaked lines that can be interpreted as the signature of a rotating structure in our targets or with the presence of major mergers in our sample. Our results presented in this paper showcase the scientific potential of (sub)mm observations for this elusive population of galaxies and highlight the potential contribution of these sources in the evolution of the massive and passive galaxies at high-z., Comment: 16 pages, 9 figures, 5 tables. Submitted to A&A

Published
2024

5. A Near-infrared-faint, Far-infrared-luminous Dusty Galaxy at z ∼ 5 in COSMOS-Web

Author

McKinney, Jed, Manning, Sinclaire M., Cooper, Olivia R., Long, Arianna S., Akins, Hollis, Casey, Caitlin M., Faisst, Andreas L., Franco, Maximilien, Hayward, Christopher C., Lambrides, Erini, Magdis, Georgios, Whitaker, Katherine E., Yun, Min, Champagne, Jaclyn B., Drakos, Nicole E., Gentile, Fabrizio, Gillman, Steven, Gozaliasl, Ghassem, Ilbert, Olivier, Jin, Shuowen, Koekemoer, Anton M., Kokorev, Vasily, Liu, Daizhong, Rich, R. Michael, Robertson, Brant E., Valentino, Francesco, Weaver, John R., Zavala, Jorge A., Allen, Natalie, Kartaltepe, Jeyhan S., McCracken, Henry Joy, Paquereau, Louise, Rhodes, Jason, Shuntov, Marko, Toft, Sune, McKinney, Jed, Manning, Sinclaire M., Cooper, Olivia R., Long, Arianna S., Akins, Hollis, Casey, Caitlin M., Faisst, Andreas L., Franco, Maximilien, Hayward, Christopher C., Lambrides, Erini, Magdis, Georgios, Whitaker, Katherine E., Yun, Min, Champagne, Jaclyn B., Drakos, Nicole E., Gentile, Fabrizio, Gillman, Steven, Gozaliasl, Ghassem, Ilbert, Olivier, Jin, Shuowen, Koekemoer, Anton M., Kokorev, Vasily, Liu, Daizhong, Rich, R. Michael, Robertson, Brant E., Valentino, Francesco, Weaver, John R., Zavala, Jorge A., Allen, Natalie, Kartaltepe, Jeyhan S., McCracken, Henry Joy, Paquereau, Louise, Rhodes, Jason, Shuntov, Marko, and Toft, Sune

Published
2023

6. COSMOS-Web: An Overview of the JWST Cosmic Origins Survey

Author

Casey, Caitlin M., Kartaltepe, Jeyhan S., Drakos, Nicole E., Franco, Maximilien, Harish, Santosh, Paquereau, Louise, Ilbert, Olivier, Rose, Caitlin, Cox, Isabella G., Nightingale, James W., Robertson, Brant E., Silverman, John D., Koekemoer, Anton M., Massey, Richard, McCracken, Henry Joy, Rhodes, Jason, Akins, Hollis B., Amvrosiadis, Aristeidis, Arango-Toro, Rafael C., Bagley, Micaela B., Bongiorno, Angela, Capak, Peter L., Champagne, Jaclyn B., Chartab, Nima, Ortiz, Oscar A. Chavez, Chworowsky, Katherine, Cooke, Kevin C., Cooper, Olivia R., Darvish, Behnam, Ding, Xuheng, Faisst, Andreas L., Finkelstein, Steven L., Fujimoto, Seiji, Gentile, Fabrizio, Gillman, Steven, Gould, Katriona M. L., Gozaliasl, Ghassem, Hayward, Christopher C., He, Qiuhan, Hemmati, Shoubaneh, Hirschmann, Michaela, Jahnke, Knud, Jin, Shuowen, Khostovan, Ali Ahmad, Kokorev, Vasily, Lambrides, Erini, Laigle, Clotilde, Larson, Rebecca L., Leung, Gene C. K., Liu, Daizhong, Liaudat, Tobias, Long, Arianna S., Magdis, Georgios, Mahler, Guillaume, Mainieri, Vincenzo, Manning, Sinclaire M., Maraston, Claudia, Martin, Crystal L., McCleary, Jacqueline E., McKinney, Jed, McPartland, Conor J. R., Mobasher, Bahram, Pattnaik, Rohan, Renzini, Alvio, Rich, R. Michael, Sanders, David B., Sattari, Zahra, Scognamiglio, Diana, Scoville, Nick, Sheth, Kartik, Shuntov, Marko, Sparre, Martin, Suzuki, Tomoko L., Talia, Margherita, Toft, Sune, Trakhtenbrot, Benny, Urry, C. Megan, Valentino, Francesco, Vanderhoof, Brittany N., Vardoulaki, Eleni, Weaver, John R., Whitaker, Katherine E., Wilkins, Stephen M., Yang, Lilan, Zavala, Jorge A., Casey, Caitlin M., Kartaltepe, Jeyhan S., Drakos, Nicole E., Franco, Maximilien, Harish, Santosh, Paquereau, Louise, Ilbert, Olivier, Rose, Caitlin, Cox, Isabella G., Nightingale, James W., Robertson, Brant E., Silverman, John D., Koekemoer, Anton M., Massey, Richard, McCracken, Henry Joy, Rhodes, Jason, Akins, Hollis B., Amvrosiadis, Aristeidis, Arango-Toro, Rafael C., Bagley, Micaela B., Bongiorno, Angela, Capak, Peter L., Champagne, Jaclyn B., Chartab, Nima, Ortiz, Oscar A. Chavez, Chworowsky, Katherine, Cooke, Kevin C., Cooper, Olivia R., Darvish, Behnam, Ding, Xuheng, Faisst, Andreas L., Finkelstein, Steven L., Fujimoto, Seiji, Gentile, Fabrizio, Gillman, Steven, Gould, Katriona M. L., Gozaliasl, Ghassem, Hayward, Christopher C., He, Qiuhan, Hemmati, Shoubaneh, Hirschmann, Michaela, Jahnke, Knud, Jin, Shuowen, Khostovan, Ali Ahmad, Kokorev, Vasily, Lambrides, Erini, Laigle, Clotilde, Larson, Rebecca L., Leung, Gene C. K., Liu, Daizhong, Liaudat, Tobias, Long, Arianna S., Magdis, Georgios, Mahler, Guillaume, Mainieri, Vincenzo, Manning, Sinclaire M., Maraston, Claudia, Martin, Crystal L., McCleary, Jacqueline E., McKinney, Jed, McPartland, Conor J. R., Mobasher, Bahram, Pattnaik, Rohan, Renzini, Alvio, Rich, R. Michael, Sanders, David B., Sattari, Zahra, Scognamiglio, Diana, Scoville, Nick, Sheth, Kartik, Shuntov, Marko, Sparre, Martin, Suzuki, Tomoko L., Talia, Margherita, Toft, Sune, Trakhtenbrot, Benny, Urry, C. Megan, Valentino, Francesco, Vanderhoof, Brittany N., Vardoulaki, Eleni, Weaver, John R., Whitaker, Katherine E., Wilkins, Stephen M., Yang, Lilan, and Zavala, Jorge A.

Published
2023

7. COSMOS-Web: An Overview of the JWST Cosmic Origins Survey

Author

Casey, Caitlin M, Casey, Caitlin M, Kartaltepe, Jeyhan S, Drakos, Nicole E, Franco, Maximilien, Harish, Santosh, Paquereau, Louise, Ilbert, Olivier, Rose, Caitlin, Cox, Isabella G, Nightingale, James W, Robertson, Brant E, Silverman, John D, Koekemoer, Anton M, Massey, Richard, McCracken, Henry Joy, Rhodes, Jason, Akins, Hollis B, Allen, Natalie, Amvrosiadis, Aristeidis, Arango-Toro, Rafael C, Bagley, Micaela B, Bongiorno, Angela, Capak, Peter L, Champagne, Jaclyn B, Chartab, Nima, Ortiz, Óscar A Chávez, Chworowsky, Katherine, Cooke, Kevin C, Cooper, Olivia R, Darvish, Behnam, Ding, Xuheng, Faisst, Andreas L, Finkelstein, Steven L, Fujimoto, Seiji, Gentile, Fabrizio, Gillman, Steven, Gould, Katriona ML, Gozaliasl, Ghassem, Hayward, Christopher C, He, Qiuhan, Hemmati, Shoubaneh, Hirschmann, Michaela, Jahnke, Knud, Jin, Shuowen, Khostovan, Ali Ahmad, Kokorev, Vasily, Lambrides, Erini, Laigle, Clotilde, Larson, Rebecca L, Leung, Gene CK, Liu, Daizhong, Liaudat, Tobias, Long, Arianna S, Magdis, Georgios, Mahler, Guillaume, Mainieri, Vincenzo, Manning, Sinclaire M, Maraston, Claudia, Martin, Crystal L, McCleary, Jacqueline E, McKinney, Jed, McPartland, Conor JR, Mobasher, Bahram, Pattnaik, Rohan, Renzini, Alvio, Rich, R Michael, Sanders, David B, Sattari, Zahra, Scognamiglio, Diana, Scoville, Nick, Sheth, Kartik, Shuntov, Marko, Sparre, Martin, Suzuki, Tomoko L, Talia, Margherita, Toft, Sune, Trakhtenbrot, Benny, Urry, C Megan, Valentino, Francesco, Vanderhoof, Brittany N, Vardoulaki, Eleni, Weaver, John R, Whitaker, Katherine E, Wilkins, Stephen M, Yang, Lilan, Zavala, Jorge A, Casey, Caitlin M, Casey, Caitlin M, Kartaltepe, Jeyhan S, Drakos, Nicole E, Franco, Maximilien, Harish, Santosh, Paquereau, Louise, Ilbert, Olivier, Rose, Caitlin, Cox, Isabella G, Nightingale, James W, Robertson, Brant E, Silverman, John D, Koekemoer, Anton M, Massey, Richard, McCracken, Henry Joy, Rhodes, Jason, Akins, Hollis B, Allen, Natalie, Amvrosiadis, Aristeidis, Arango-Toro, Rafael C, Bagley, Micaela B, Bongiorno, Angela, Capak, Peter L, Champagne, Jaclyn B, Chartab, Nima, Ortiz, Óscar A Chávez, Chworowsky, Katherine, Cooke, Kevin C, Cooper, Olivia R, Darvish, Behnam, Ding, Xuheng, Faisst, Andreas L, Finkelstein, Steven L, Fujimoto, Seiji, Gentile, Fabrizio, Gillman, Steven, Gould, Katriona ML, Gozaliasl, Ghassem, Hayward, Christopher C, He, Qiuhan, Hemmati, Shoubaneh, Hirschmann, Michaela, Jahnke, Knud, Jin, Shuowen, Khostovan, Ali Ahmad, Kokorev, Vasily, Lambrides, Erini, Laigle, Clotilde, Larson, Rebecca L, Leung, Gene CK, Liu, Daizhong, Liaudat, Tobias, Long, Arianna S, Magdis, Georgios, Mahler, Guillaume, Mainieri, Vincenzo, Manning, Sinclaire M, Maraston, Claudia, Martin, Crystal L, McCleary, Jacqueline E, McKinney, Jed, McPartland, Conor JR, Mobasher, Bahram, Pattnaik, Rohan, Renzini, Alvio, Rich, R Michael, Sanders, David B, Sattari, Zahra, Scognamiglio, Diana, Scoville, Nick, Sheth, Kartik, Shuntov, Marko, Sparre, Martin, Suzuki, Tomoko L, Talia, Margherita, Toft, Sune, Trakhtenbrot, Benny, Urry, C Megan, Valentino, Francesco, Vanderhoof, Brittany N, Vardoulaki, Eleni, Weaver, John R, Whitaker, Katherine E, Wilkins, Stephen M, Yang, Lilan, and Zavala, Jorge A

Published
2023

8. A Near-infrared-faint, Far-infrared-luminous Dusty Galaxy at z ∼ 5 in COSMOS-Web

Author

Mckinney, Jed, Manning, Sinclaire M., Cooper, Olivia R., Long, Arianna S., Akins, Hollis, Casey, Caitlin M., Faisst, Andreas L., Franco, Maximilien, Hayward, Christopher C., Lambrides, Erini, Magdis, Georgios, Whitaker, Katherine E., Yun, Min, Champagne, Jaclyn B., Drakos, Nicole E., Gentile, Fabrizio, Gillman, Steven, Gozaliasl, Ghassem, Ilbert, Olivier, Jin, Shuowen, Koekemoer, Anton M., Kokorev, Vasily, Liu, Daizhong, Rich, R. Michael, Robertson, Brant E., Valentino, Francesco, Weaver, John R., Zavala, Jorge A., Allen, Natalie, Kartaltepe, Jeyhan S., Mccracken, Henry Joy, Paquereau, Louise, Rhodes, Jason, Shuntov, Marko, Toft, Sune, Mckinney, Jed, Manning, Sinclaire M., Cooper, Olivia R., Long, Arianna S., Akins, Hollis, Casey, Caitlin M., Faisst, Andreas L., Franco, Maximilien, Hayward, Christopher C., Lambrides, Erini, Magdis, Georgios, Whitaker, Katherine E., Yun, Min, Champagne, Jaclyn B., Drakos, Nicole E., Gentile, Fabrizio, Gillman, Steven, Gozaliasl, Ghassem, Ilbert, Olivier, Jin, Shuowen, Koekemoer, Anton M., Kokorev, Vasily, Liu, Daizhong, Rich, R. Michael, Robertson, Brant E., Valentino, Francesco, Weaver, John R., Zavala, Jorge A., Allen, Natalie, Kartaltepe, Jeyhan S., Mccracken, Henry Joy, Paquereau, Louise, Rhodes, Jason, Shuntov, Marko, and Toft, Sune

Published
2023

9. COSMOS-Web:An Overview of the JWST Cosmic Origins Survey

Author

Casey, Caitlin M., Kartaltepe, Jeyhan S., Drakos, Nicole E., Franco, Maximilien, Harish, Santosh, Paquereau, Louise, Ilbert, Olivier, Rose, Caitlin, Cox, Isabella G., Nightingale, James W., Robertson, Brant E., Silverman, John D., Koekemoer, Anton M., Massey, Richard, Mccracken, Henry Joy, Rhodes, Jason, Akins, Hollis B., Allen, Natalie, Amvrosiadis, Aristeidis, Arango-toro, Rafael C., Bagley, Micaela B., Bongiorno, Angela, Capak, Peter L., Champagne, Jaclyn B., Chartab, Nima, Chávez Ortiz, Óscar A., Chworowsky, Katherine, Cooke, Kevin C., Cooper, Olivia R., Darvish, Behnam, Ding, Xuheng, Faisst, Andreas L., Finkelstein, Steven L., Fujimoto, Seiji, Gentile, Fabrizio, Gillman, Steven, Gould, Katriona M. L., Gozaliasl, Ghassem, Hayward, Christopher C., He, Qiuhan, Hemmati, Shoubaneh, Hirschmann, Michaela, Jahnke, Knud, Jin, Shuowen, Khostovan, Ali Ahmad, Kokorev, Vasily, Lambrides, Erini, Laigle, Clotilde, Larson, Rebecca L., Leung, Gene C. K., Liu, Daizhong, Liaudat, Tobias, Long, Arianna S., Magdis, Georgios, Mahler, Guillaume, Mainieri, Vincenzo, Manning, Sinclaire M., Maraston, Claudia, Martin, Crystal L., Mccleary, Jacqueline E., Mckinney, Jed, Mcpartland, Conor J. R., Mobasher, Bahram, Pattnaik, Rohan, Renzini, Alvio, Rich, R. Michael, Sanders, David B., Sattari, Zahra, Scognamiglio, Diana, Scoville, Nick, Sheth, Kartik, Shuntov, Marko, Sparre, Martin, Suzuki, Tomoko L., Talia, Margherita, Toft, Sune, Trakhtenbrot, Benny, Urry, C. Megan, Valentino, Francesco, Vanderhoof, Brittany N., Vardoulaki, Eleni, Weaver, John R., Whitaker, Katherine E., Wilkins, Stephen M., Yang, Lilan, Zavala, Jorge A., Casey, Caitlin M., Kartaltepe, Jeyhan S., Drakos, Nicole E., Franco, Maximilien, Harish, Santosh, Paquereau, Louise, Ilbert, Olivier, Rose, Caitlin, Cox, Isabella G., Nightingale, James W., Robertson, Brant E., Silverman, John D., Koekemoer, Anton M., Massey, Richard, Mccracken, Henry Joy, Rhodes, Jason, Akins, Hollis B., Allen, Natalie, Amvrosiadis, Aristeidis, Arango-toro, Rafael C., Bagley, Micaela B., Bongiorno, Angela, Capak, Peter L., Champagne, Jaclyn B., Chartab, Nima, Chávez Ortiz, Óscar A., Chworowsky, Katherine, Cooke, Kevin C., Cooper, Olivia R., Darvish, Behnam, Ding, Xuheng, Faisst, Andreas L., Finkelstein, Steven L., Fujimoto, Seiji, Gentile, Fabrizio, Gillman, Steven, Gould, Katriona M. L., Gozaliasl, Ghassem, Hayward, Christopher C., He, Qiuhan, Hemmati, Shoubaneh, Hirschmann, Michaela, Jahnke, Knud, Jin, Shuowen, Khostovan, Ali Ahmad, Kokorev, Vasily, Lambrides, Erini, Laigle, Clotilde, Larson, Rebecca L., Leung, Gene C. K., Liu, Daizhong, Liaudat, Tobias, Long, Arianna S., Magdis, Georgios, Mahler, Guillaume, Mainieri, Vincenzo, Manning, Sinclaire M., Maraston, Claudia, Martin, Crystal L., Mccleary, Jacqueline E., Mckinney, Jed, Mcpartland, Conor J. R., Mobasher, Bahram, Pattnaik, Rohan, Renzini, Alvio, Rich, R. Michael, Sanders, David B., Sattari, Zahra, Scognamiglio, Diana, Scoville, Nick, Sheth, Kartik, Shuntov, Marko, Sparre, Martin, Suzuki, Tomoko L., Talia, Margherita, Toft, Sune, Trakhtenbrot, Benny, Urry, C. Megan, Valentino, Francesco, Vanderhoof, Brittany N., Vardoulaki, Eleni, Weaver, John R., Whitaker, Katherine E., Wilkins, Stephen M., Yang, Lilan, and Zavala, Jorge A.

Published
2023

10. Illuminating the Dark Side of Cosmic Star Formation II. A second date with RS-NIRdark galaxies in COSMOS

Author

Behiri, Meriem, Talia, Margherita, Cimatti, Andrea, Lapi, Andrea, Massardi, Marcella, Enia, Andrea F., Vignali, Cristian, Bethermin, Matthieu, Faisst, Andreas L., Gentile, Fabrizio, Giulietti, Marika, Gruppioni, Carlotta, Pozzi, Francesca, Smolcic, Vernesa, Zamorani, Gianni, Behiri, Meriem, Talia, Margherita, Cimatti, Andrea, Lapi, Andrea, Massardi, Marcella, Enia, Andrea F., Vignali, Cristian, Bethermin, Matthieu, Faisst, Andreas L., Gentile, Fabrizio, Giulietti, Marika, Gruppioni, Carlotta, Pozzi, Francesca, Smolcic, Vernesa, and Zamorani, Gianni

Abstract

About 12 billion years ago, the Universe was first experiencing light again after the dark ages, and galaxies filled the environment with stars, metals and dust. How efficient was this process? How fast did these primordial galaxies form stars and dust? We can answer these questions by tracing the Star Formation Rate Density (SFRD) back to its widely unknown high redshift tail, traditionally observed in the Near-InfraRed (NIR), Optical and UV bands. Thus, the objects with a high amount of dust were missing. We aim to fill this knowledge gap by studying Radio Selected NIR-dark (\textit{RS-NIRdark}) sources, i.e. sources not having a counterpart at UV-to-NIR wavelengths. We widen the sample by Talia et al. (2021) from 197 to 272 objects in the COSMic evolution Survey (COSMOS) field, including also photometrically contaminated sources, previously excluded. Another important step forward consists in the visual inspection of each source in the bands from u* to MIPS-24$\mu$m. According to their "environment" in the different bands, we are able to highlight different cases of study and calibrate an appropriate photometric procedure for the objects affected by confusion issues. We estimate that the contribution of RS-NIRdark to the Cosmic SFRD at 3$<$z$<$5 is $\sim$10--25$\%$ of that based on UV-selected galaxies.

Published
2023

11. CASCO: Cosmological and AStrophysical parameters from Cosmological simulations and Observations -- I. Constraining physical processes in local star-forming galaxies

Author

Busillo, Valerio, Tortora, Crescenzo, Napolitano, Nicola R., Koopmans, Leon V. E., Covone, Giovanni, Gentile, Fabrizio, Hunt, Leslie K., Busillo, Valerio, Tortora, Crescenzo, Napolitano, Nicola R., Koopmans, Leon V. E., Covone, Giovanni, Gentile, Fabrizio, and Hunt, Leslie K.

Abstract

We compare the structural properties and dark matter content of star-forming galaxies taken from the CAMELS cosmological simulations to the observed trends derived from the SPARC sample in the stellar mass range $[10^{9}, 10^{11}]\,\textrm{M}_{\odot}$, to provide constraints on the value of cosmological and astrophysical (SN- and AGN-related) parameters. We consider the size-, internal DM fraction-, internal DM mass- and total-stellar mass relations for all the 1065 simulations from the IllustrisTNG, SIMBA and ASTRID suites of CAMELS, and search for the parameters that minimize the $\chi^{2}$ with respect to the observations. For the IllustrisTNG suite, we find the following constraints for the cosmological parameters: $\Omega_{\textrm{m}} = 0.27_{-0.05}^{+0.01}$, $\sigma_{8} = 0.83_{-0.11}^{+0.08}$ and $S_{8} = 0.78_{-0.09}^{+0.03}$, which are consistent within $1\sigma$ with the results from the nine-year WMAP observations. SN feedback-related astrophysical parameters, which describe the departure of outflow wind energy per unit star formation rate and wind velocity from the reference IllustrisTNG simulations, assume the following values: $A_{\textrm{SN1}} = 0.48_{-0.16}^{+0.25}$ and $A_{\textrm{SN2}} = 1.21_{-0.34}^{+0.03}$, respectively. Therefore, simulations with a lower value of outflow wind energy per unit star formation rate with respect to the reference illustrisTNG simulation better reproduce the observations. Simulations based on SIMBA and ASTRID suites predict central dark matter masses substantially larger than those observed in real galaxies, which can be reconciled with observations only by requiring values of $\Omega_{\textrm{m}}$ inconsistent with cosmological constraints for SIMBA, or simulations characterized by unrealistic galaxy mass distributions for ASTRID., Comment: 24 pages, 10 figures, 9 tables. Accepted by MNRAS for publication; Added a reference to sec. 4.1

Published
2023
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12. A Near-Infrared Faint, Far-Infrared-Luminous Dusty Galaxy at z~5 in COSMOS-Web

Author

McKinney, Jed, Manning, Sinclaire M., Cooper, Olivia R., Long, Arianna S., Akins, Hollis, Casey, Caitlin M., Faisst, Andreas L., Franco, Maximilien, Hayward, Christopher C., Lambrides, Erini, Magdis, Georgios, Whitaker, Katherine E., Yun, Min, Champagne, Jaclyn B., Drakos, Nicole E., Gentile, Fabrizio, Gillman, Steven, Gozaliasl, Ghassem, Ilbert, Olivier, Jin, Shuowen, Koekemoer, Anton M., Kokorev, Vasily, Liu, Daizhong, Rich, R. Michael, Robertson, Brant E., Valentino, Francesco, Weaver, John R., Zavala, Jorge A., Allen, Natalie, Kartaltepe, Jeyhan S., McCracken, Henry Joy, Paquereau, Louise, Rhodes, Jason, Shuntov, Marko, Toft, Sune, McKinney, Jed, Manning, Sinclaire M., Cooper, Olivia R., Long, Arianna S., Akins, Hollis, Casey, Caitlin M., Faisst, Andreas L., Franco, Maximilien, Hayward, Christopher C., Lambrides, Erini, Magdis, Georgios, Whitaker, Katherine E., Yun, Min, Champagne, Jaclyn B., Drakos, Nicole E., Gentile, Fabrizio, Gillman, Steven, Gozaliasl, Ghassem, Ilbert, Olivier, Jin, Shuowen, Koekemoer, Anton M., Kokorev, Vasily, Liu, Daizhong, Rich, R. Michael, Robertson, Brant E., Valentino, Francesco, Weaver, John R., Zavala, Jorge A., Allen, Natalie, Kartaltepe, Jeyhan S., McCracken, Henry Joy, Paquereau, Louise, Rhodes, Jason, Shuntov, Marko, and Toft, Sune

Abstract

A growing number of far-infrared bright sources completely invisible in deep extragalactic optical surveys hint at an elusive population of z>4 dusty, star-forming galaxies. Cycle 1 JWST surveys are now detecting their rest-frame optical light, which provides key insight into their stellar properties and statistical constraints on the population as a whole. This work presents the JWST/NIRCam counterpart from the COSMOS-Web survey to a far-infrared SCUBA-2 and ALMA source, AzTECC71, which was previously undetected at wavelengths shorter than 850 microns. AzTECC71, amongst the reddest galaxies in COSMOS-Web with F277W - F444W~0.9, is undetected in NIRCam/F150W and F115W and fainter in F444W than other sub-millimeter galaxies identified in COSMOS-Web by 2-4 magnitudes. This is consistent with the system having both a lower stellar mass and higher redshift than the median dusty, star-forming galaxy. With deep ground- and space-based upper limits combined with detections in F277W, F444W and the far-IR including ALMA Band 6, we find a high probability (99%) that AzTECC71 is at z>4 with z_phot=5.7(+0.8,-0.7). This galaxy is massive (logM*/Msun~10.7) and IR-luminous (logLIR/Lsun~12.7), comparable to other optically-undetected but far-IR bright dusty, star-forming galaxies at z>4. This population of luminous, infrared galaxies at z>4 is largely unconstrained but comprises an important bridge between the most extreme dust-obscured galaxies and more typical high-redshift star-forming galaxies. If further far-IR-selected galaxies that drop out of the F150W filter in COSMOS-Web have redshifts z>4 like AzTECC71, then the volume density of such sources may be ~3-10x greater than previously estimated., Comment: 13 pages, 7 figures, submitted to ApJ

Published
2023

13. The impact of human expert visual inspection on the discovery of strong gravitational lenses

Author

Rojas, Karina, Collett, Thomas E., Ballard, Daniel, Magee, Mark R., Birrer, Simon, Buckley-Geer., Elizabeth, Chan, James H. H., Clément, Benjamin, Diego, José M., Gentile, Fabrizio, González, Jimena, Joseph, Rémy, Mastache, Jorge, Schuldt, Stefan, Tortora, Crescenzo, Verdugo, Tomás, Verma, Aprajita, Daylan, Tansu, Millon, Martin, Jackson, Neal, Dye, Simon, Melo, Alejandra, Mahler, Guillaume, Ogando, Ricardo L. C., Courbin, Frédéric, Fritz, Alexander, Herle, Aniruddh, Barroso, Javier A. Acevedo, Cañameras, Raoul, Cornen, Claude, Dhanasingham, Birendra, Glazebrook, Karl, Martinez, Michael N., Ryczanowski, Dan, Savary, Elodie, Góis-Silva, Filipe, Ureña-López, L. Arturo, Wiesner, Matthew P., Wilde, Joshua, Calçada, Gabriel Valim, Cabanac, Rémi, Pan, Yue, Sierra, Isaac, Despali, Giulia, Cavalcante-Gomes, Micaele V., Macmillan, Christine, Maresca, Jacob, Grudskaia, Aleksandra, O'Donnell, Jackson H., Paic, Eric, Niemiec, Anna, de la Bella, Lucia F., Bromley, Jane, Williams, Devon M., More, Anupreeta, Levine, Benjamin C., Rojas, Karina, Collett, Thomas E., Ballard, Daniel, Magee, Mark R., Birrer, Simon, Buckley-Geer., Elizabeth, Chan, James H. H., Clément, Benjamin, Diego, José M., Gentile, Fabrizio, González, Jimena, Joseph, Rémy, Mastache, Jorge, Schuldt, Stefan, Tortora, Crescenzo, Verdugo, Tomás, Verma, Aprajita, Daylan, Tansu, Millon, Martin, Jackson, Neal, Dye, Simon, Melo, Alejandra, Mahler, Guillaume, Ogando, Ricardo L. C., Courbin, Frédéric, Fritz, Alexander, Herle, Aniruddh, Barroso, Javier A. Acevedo, Cañameras, Raoul, Cornen, Claude, Dhanasingham, Birendra, Glazebrook, Karl, Martinez, Michael N., Ryczanowski, Dan, Savary, Elodie, Góis-Silva, Filipe, Ureña-López, L. Arturo, Wiesner, Matthew P., Wilde, Joshua, Calçada, Gabriel Valim, Cabanac, Rémi, Pan, Yue, Sierra, Isaac, Despali, Giulia, Cavalcante-Gomes, Micaele V., Macmillan, Christine, Maresca, Jacob, Grudskaia, Aleksandra, O'Donnell, Jackson H., Paic, Eric, Niemiec, Anna, de la Bella, Lucia F., Bromley, Jane, Williams, Devon M., More, Anupreeta, and Levine, Benjamin C.

Abstract

We investigate the ability of human 'expert' classifiers to identify strong gravitational lens candidates in Dark Energy Survey like imaging. We recruited a total of 55 people that completed more than 25$\%$ of the project. During the classification task, we present to the participants 1489 images. The sample contains a variety of data including lens simulations, real lenses, non-lens examples, and unlabeled data. We find that experts are extremely good at finding bright, well-resolved Einstein rings, whilst arcs with $g$-band signal-to-noise less than $\sim$25 or Einstein radii less than $\sim$1.2 times the seeing are rarely recovered. Very few non-lenses are scored highly. There is substantial variation in the performance of individual classifiers, but they do not appear to depend on the classifier's experience, confidence or academic position. These variations can be mitigated with a team of 6 or more independent classifiers. Our results give confidence that humans are a reliable pruning step for lens candidates, providing pure and quantifiably complete samples for follow-up studies., Comment: 16 pages, 20 Figures

Published
2023
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14. Illuminating the Dark Side of Cosmic Star Formation III: Building the largest homogeneous sample of Radio-Selected Dusty Star-Forming Galaxies in COSMOS with PhoEBO

Author

Gentile, Fabrizio, Talia, Margherita, Behiri, Meriem, Zamorani, Gianni, Barchiesi, Luigi, Vignali, Cristian, Pozzi, Francesca, Bethermin, Matthieu, Enia, Andrea F., Faisst, Andreas L., Giulietti, Marika, Gruppioni, Carlotta, Lapi, Andrea, Massardi, Marcella, Smolcic, Vernesa, Vaccari, Mattia, Cimatti, Andrea, Gentile, Fabrizio, Talia, Margherita, Behiri, Meriem, Zamorani, Gianni, Barchiesi, Luigi, Vignali, Cristian, Pozzi, Francesca, Bethermin, Matthieu, Enia, Andrea F., Faisst, Andreas L., Giulietti, Marika, Gruppioni, Carlotta, Lapi, Andrea, Massardi, Marcella, Smolcic, Vernesa, Vaccari, Mattia, and Cimatti, Andrea

Abstract

In the last decades, an increasing scientific interest has been growing in the elusive population of "dark" (i.e. lacking an optical/NIR counterpart) Dusty Star-Forming Galaxies (DSFGs). Although extremely promising for their likely contribution to the cosmic Star Formation Rate Density and for their possible role in the evolution of the first massive and passive galaxies around $z\sim3$, the difficulty in selecting statistically significant samples of dark DSFGs is limiting their scientific potentialities. This work presents the first panchromatic study of a sample of 263 Radio-Selected NIRdark galaxies discovered in the COSMOS field following the procedure by Talia+21. These sources are selected as radio-bright galaxies (S(3GHz)>12.65 uJy) with no counterpart in the NIR-selected COSMOS2020 catalog (Ks > 25.5 mag). For these sources, we build a new photometric catalog including accurate photometry from the optical to the radio obtained with a new deblending pipeline (PhoEBO: Photometry Extractor for Blended Objects). We employ this catalog to estimate the photo-zs and the physical properties of the galaxies through an SED-fitting procedure performed with two different codes (Magphys and Cigale). Finally, we estimate the AGN contamination in our sample by performing a series of complementary tests. The high values of the median extinction (Av ~ 4) and star formation rate (SFR ~ 500 Msun/yr) confirm the likely DSFG nature of the RS-NIRdark galaxies. The median photo-z (z~3) and the presence of a significant tail of high-z candidates (z>4.5) suggest that these sources are important contributors to the cosmic SFRD and the evolutionary path of galaxies at high redshifts., Comment: 22 pages, 9 figures, 3 tables. Accepted for publication in ApJ

Published
2023

15. A Near-infrared-faint, Far-infrared-luminous Dusty Galaxy at z ∼ 5 in COSMOS-Web

Author

Mckinney, Jed, Manning, Sinclaire M., Cooper, Olivia R., Long, Arianna S., Akins, Hollis, Casey, Caitlin M., Faisst, Andreas L., Franco, Maximilien, Hayward, Christopher C., Lambrides, Erini, Magdis, Georgios, Whitaker, Katherine E., Yun, Min, Champagne, Jaclyn B., Drakos, Nicole E., Gentile, Fabrizio, Gillman, Steven, Gozaliasl, Ghassem, Ilbert, Olivier, Jin, Shuowen, Koekemoer, Anton M., Kokorev, Vasily, Liu, Daizhong, Rich, R. Michael, Robertson, Brant E., Valentino, Francesco, Weaver, John R., Zavala, Jorge A., Allen, Natalie, Kartaltepe, Jeyhan S., Mccracken, Henry Joy, Paquereau, Louise, Rhodes, Jason, Shuntov, Marko, Toft, Sune, Mckinney, Jed, Manning, Sinclaire M., Cooper, Olivia R., Long, Arianna S., Akins, Hollis, Casey, Caitlin M., Faisst, Andreas L., Franco, Maximilien, Hayward, Christopher C., Lambrides, Erini, Magdis, Georgios, Whitaker, Katherine E., Yun, Min, Champagne, Jaclyn B., Drakos, Nicole E., Gentile, Fabrizio, Gillman, Steven, Gozaliasl, Ghassem, Ilbert, Olivier, Jin, Shuowen, Koekemoer, Anton M., Kokorev, Vasily, Liu, Daizhong, Rich, R. Michael, Robertson, Brant E., Valentino, Francesco, Weaver, John R., Zavala, Jorge A., Allen, Natalie, Kartaltepe, Jeyhan S., Mccracken, Henry Joy, Paquereau, Louise, Rhodes, Jason, Shuntov, Marko, and Toft, Sune

Published
2023

16. COSMOS-Web:An Overview of the JWST Cosmic Origins Survey

Author

Casey, Caitlin M., Kartaltepe, Jeyhan S., Drakos, Nicole E., Franco, Maximilien, Harish, Santosh, Paquereau, Louise, Ilbert, Olivier, Rose, Caitlin, Cox, Isabella G., Nightingale, James W., Robertson, Brant E., Silverman, John D., Koekemoer, Anton M., Massey, Richard, Mccracken, Henry Joy, Rhodes, Jason, Akins, Hollis B., Allen, Natalie, Amvrosiadis, Aristeidis, Arango-toro, Rafael C., Bagley, Micaela B., Bongiorno, Angela, Capak, Peter L., Champagne, Jaclyn B., Chartab, Nima, Chávez Ortiz, Óscar A., Chworowsky, Katherine, Cooke, Kevin C., Cooper, Olivia R., Darvish, Behnam, Ding, Xuheng, Faisst, Andreas L., Finkelstein, Steven L., Fujimoto, Seiji, Gentile, Fabrizio, Gillman, Steven, Gould, Katriona M. L., Gozaliasl, Ghassem, Hayward, Christopher C., He, Qiuhan, Hemmati, Shoubaneh, Hirschmann, Michaela, Jahnke, Knud, Jin, Shuowen, Khostovan, Ali Ahmad, Kokorev, Vasily, Lambrides, Erini, Laigle, Clotilde, Larson, Rebecca L., Leung, Gene C. K., Liu, Daizhong, Liaudat, Tobias, Long, Arianna S., Magdis, Georgios, Mahler, Guillaume, Mainieri, Vincenzo, Manning, Sinclaire M., Maraston, Claudia, Martin, Crystal L., Mccleary, Jacqueline E., Mckinney, Jed, Mcpartland, Conor J. R., Mobasher, Bahram, Pattnaik, Rohan, Renzini, Alvio, Rich, R. Michael, Sanders, David B., Sattari, Zahra, Scognamiglio, Diana, Scoville, Nick, Sheth, Kartik, Shuntov, Marko, Sparre, Martin, Suzuki, Tomoko L., Talia, Margherita, Toft, Sune, Trakhtenbrot, Benny, Urry, C. Megan, Valentino, Francesco, Vanderhoof, Brittany N., Vardoulaki, Eleni, Weaver, John R., Whitaker, Katherine E., Wilkins, Stephen M., Yang, Lilan, Zavala, Jorge A., Casey, Caitlin M., Kartaltepe, Jeyhan S., Drakos, Nicole E., Franco, Maximilien, Harish, Santosh, Paquereau, Louise, Ilbert, Olivier, Rose, Caitlin, Cox, Isabella G., Nightingale, James W., Robertson, Brant E., Silverman, John D., Koekemoer, Anton M., Massey, Richard, Mccracken, Henry Joy, Rhodes, Jason, Akins, Hollis B., Allen, Natalie, Amvrosiadis, Aristeidis, Arango-toro, Rafael C., Bagley, Micaela B., Bongiorno, Angela, Capak, Peter L., Champagne, Jaclyn B., Chartab, Nima, Chávez Ortiz, Óscar A., Chworowsky, Katherine, Cooke, Kevin C., Cooper, Olivia R., Darvish, Behnam, Ding, Xuheng, Faisst, Andreas L., Finkelstein, Steven L., Fujimoto, Seiji, Gentile, Fabrizio, Gillman, Steven, Gould, Katriona M. L., Gozaliasl, Ghassem, Hayward, Christopher C., He, Qiuhan, Hemmati, Shoubaneh, Hirschmann, Michaela, Jahnke, Knud, Jin, Shuowen, Khostovan, Ali Ahmad, Kokorev, Vasily, Lambrides, Erini, Laigle, Clotilde, Larson, Rebecca L., Leung, Gene C. K., Liu, Daizhong, Liaudat, Tobias, Long, Arianna S., Magdis, Georgios, Mahler, Guillaume, Mainieri, Vincenzo, Manning, Sinclaire M., Maraston, Claudia, Martin, Crystal L., Mccleary, Jacqueline E., Mckinney, Jed, Mcpartland, Conor J. R., Mobasher, Bahram, Pattnaik, Rohan, Renzini, Alvio, Rich, R. Michael, Sanders, David B., Sattari, Zahra, Scognamiglio, Diana, Scoville, Nick, Sheth, Kartik, Shuntov, Marko, Sparre, Martin, Suzuki, Tomoko L., Talia, Margherita, Toft, Sune, Trakhtenbrot, Benny, Urry, C. Megan, Valentino, Francesco, Vanderhoof, Brittany N., Vardoulaki, Eleni, Weaver, John R., Whitaker, Katherine E., Wilkins, Stephen M., Yang, Lilan, and Zavala, Jorge A.

Published
2023

17. COSMOS-Web: An Overview of the JWST Cosmic Origins Survey

Author

Casey, Caitlin M., Kartaltepe, Jeyhan S., Drakos, Nicole E., Franco, Maximilien, Harish, Santosh, Paquereau, Louise, Ilbert, Olivier, Rose, Caitlin, Cox, Isabella G., Nightingale, James W., Robertson, Brant E., Silverman, John D., Koekemoer, Anton M., Massey, Richard, McCracken, Henry Joy, Rhodes, Jason, Akins, Hollis B., Amvrosiadis, Aristeidis, Arango-Toro, Rafael C., Bagley, Micaela B., Bongiorno, Angela, Capak, Peter L., Champagne, Jaclyn B., Chartab, Nima, Ortiz, Oscar A. Chavez, Chworowsky, Katherine, Cooke, Kevin C., Cooper, Olivia R., Darvish, Behnam, Ding, Xuheng, Faisst, Andreas L., Finkelstein, Steven L., Fujimoto, Seiji, Gentile, Fabrizio, Gillman, Steven, Gould, Katriona M. L., Gozaliasl, Ghassem, Hayward, Christopher C., He, Qiuhan, Hemmati, Shoubaneh, Hirschmann, Michaela, Jahnke, Knud, Jin, Shuowen, Khostovan, Ali Ahmad, Kokorev, Vasily, Lambrides, Erini, Laigle, Clotilde, Larson, Rebecca L., Leung, Gene C. K., Liu, Daizhong, Liaudat, Tobias, Long, Arianna S., Magdis, Georgios, Mahler, Guillaume, Mainieri, Vincenzo, Manning, Sinclaire M., Maraston, Claudia, Martin, Crystal L., McCleary, Jacqueline E., McKinney, Jed, McPartland, Conor J. R., Mobasher, Bahram, Pattnaik, Rohan, Renzini, Alvio, Rich, R. Michael, Sanders, David B., Sattari, Zahra, Scognamiglio, Diana, Scoville, Nick, Sheth, Kartik, Shuntov, Marko, Sparre, Martin, Suzuki, Tomoko L., Talia, Margherita, Toft, Sune, Trakhtenbrot, Benny, Urry, C. Megan, Valentino, Francesco, Vanderhoof, Brittany N., Vardoulaki, Eleni, Weaver, John R., Whitaker, Katherine E., Wilkins, Stephen M., Yang, Lilan, Zavala, Jorge A., Casey, Caitlin M., Kartaltepe, Jeyhan S., Drakos, Nicole E., Franco, Maximilien, Harish, Santosh, Paquereau, Louise, Ilbert, Olivier, Rose, Caitlin, Cox, Isabella G., Nightingale, James W., Robertson, Brant E., Silverman, John D., Koekemoer, Anton M., Massey, Richard, McCracken, Henry Joy, Rhodes, Jason, Akins, Hollis B., Amvrosiadis, Aristeidis, Arango-Toro, Rafael C., Bagley, Micaela B., Bongiorno, Angela, Capak, Peter L., Champagne, Jaclyn B., Chartab, Nima, Ortiz, Oscar A. Chavez, Chworowsky, Katherine, Cooke, Kevin C., Cooper, Olivia R., Darvish, Behnam, Ding, Xuheng, Faisst, Andreas L., Finkelstein, Steven L., Fujimoto, Seiji, Gentile, Fabrizio, Gillman, Steven, Gould, Katriona M. L., Gozaliasl, Ghassem, Hayward, Christopher C., He, Qiuhan, Hemmati, Shoubaneh, Hirschmann, Michaela, Jahnke, Knud, Jin, Shuowen, Khostovan, Ali Ahmad, Kokorev, Vasily, Lambrides, Erini, Laigle, Clotilde, Larson, Rebecca L., Leung, Gene C. K., Liu, Daizhong, Liaudat, Tobias, Long, Arianna S., Magdis, Georgios, Mahler, Guillaume, Mainieri, Vincenzo, Manning, Sinclaire M., Maraston, Claudia, Martin, Crystal L., McCleary, Jacqueline E., McKinney, Jed, McPartland, Conor J. R., Mobasher, Bahram, Pattnaik, Rohan, Renzini, Alvio, Rich, R. Michael, Sanders, David B., Sattari, Zahra, Scognamiglio, Diana, Scoville, Nick, Sheth, Kartik, Shuntov, Marko, Sparre, Martin, Suzuki, Tomoko L., Talia, Margherita, Toft, Sune, Trakhtenbrot, Benny, Urry, C. Megan, Valentino, Francesco, Vanderhoof, Brittany N., Vardoulaki, Eleni, Weaver, John R., Whitaker, Katherine E., Wilkins, Stephen M., Yang, Lilan, and Zavala, Jorge A.

Abstract

We present the survey design, implementation, and outlook for COSMOS-Web, a 255 hour treasury program conducted by the James Webb Space Telescope in its first cycle of observations. COSMOS-Web is a contiguous 0.54 deg$^2$ NIRCam imaging survey in four filters (F115W, F150W, F277W, and F444W) that will reach 5$\sigma$ point source depths ranging $\sim$27.5-28.2 magnitudes. In parallel, we will obtain 0.19 deg$^2$ of MIRI imaging in one filter (F770W) reaching 5$\sigma$ point source depths of $\sim$25.3-26.0 magnitudes. COSMOS-Web will build on the rich heritage of multiwavelength observations and data products available in the COSMOS field. The design of COSMOS-Web is motivated by three primary science goals: (1) to discover thousands of galaxies in the Epoch of Reionization ($64$ and place constraints on the formation of the Universe's most massive galaxies ($M_\star>10^{10}$\,M$_\odot$), and (3) directly measure the evolution of the stellar mass to halo mass relation using weak gravitational lensing out to $z\sim2.5$ and measure its variance with galaxies' star formation histories and morphologies. In addition, we anticipate COSMOS-Web's legacy value to reach far beyond these scientific goals, touching many other areas of astrophysics, such as the identification of the first direct collapse black hole candidates, ultracool sub-dwarf stars in the Galactic halo, and possibly the identification of $z>10$ pair-instability supernovae. In this paper we provide an overview of the survey's key measurements, specifications, goals, and prospects for new discovery., Comment: 46 pages, 16 figures, ApJ accepted

Published
2022

18. LeMoN: Lens Modelling with Neural networks -- I. Automated modelling of strong gravitational lenses with Bayesian Neural Networks

Author

Gentile, Fabrizio, Tortora, Crescenzo, Covone, Giovanni, Koopmans, Léon V. E., Li, Rui, Leuzzi, Laura, Napolitano, Nicola R., Gentile, Fabrizio, Tortora, Crescenzo, Covone, Giovanni, Koopmans, Léon V. E., Li, Rui, Leuzzi, Laura, and Napolitano, Nicola R.

Abstract

The unprecedented number of gravitational lenses expected from new-generation facilities such as the ESA Euclid telescope and the Vera Rubin Observatory makes it crucial to rethink our classical approach to lens-modelling. In this paper, we present LeMoN (Lens Modelling with Neural networks): a new machine-learning algorithm able to analyse hundreds of thousands of gravitational lenses in a reasonable amount of time. The algorithm is based on a Bayesian Neural Network: a new generation of neural networks able to associate a reliable confidence interval to each predicted parameter. We train the algorithm to predict the three main parameters of the Singular Isothermal Ellipsoid model (the Einstein radius and the two components of the ellipticity) by employing two simulated datasets built to resemble the imaging capabilities of the Hubble Space Telescope and the forthcoming Euclid satellite. In this work, we assess the accuracy of the algorithm and the reliability of the estimated uncertainties by applying the network to several simulated datasets of 10.000 images each. We obtain accuracies comparable to previous studies present in the current literature and an average modelling time of just 0.5s per lens. Finally, we apply the LeMoN algorithm to a pilot dataset of real lenses observed with HST during the SLACS program, obtaining unbiased estimates of their SIE parameters. The code is publicly available on GitHub (https://github.com/fab-gentile/LeMoN)., Comment: Submitted to MNRAS; The code will be available on GitHub upon acceptance of the paper

Published
2022
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19. Lenses In VoicE (LIVE): Searching for strong gravitational lenses in the VOICE@VST survey using Convolutional Neural Networks

Author

Gentile, Fabrizio, Tortora, Crescenzo, Covone, Giovanni, Koopmans, Léon V. E., Spiniello, Chiara, Fan, Zuhui, Li, Rui, Liu, Dezi, Napolitano, Nicola R., Vaccari, Mattia, Fu, Liping, Gentile, Fabrizio, Tortora, Crescenzo, Covone, Giovanni, Koopmans, Léon V. E., Spiniello, Chiara, Fan, Zuhui, Li, Rui, Liu, Dezi, Napolitano, Nicola R., Vaccari, Mattia, and Fu, Liping

Abstract

We present a sample of 16 likely strong gravitational lenses identified in the VST Optical Imaging of the CDFS and ES1 fields (VOICE survey) using Convolutional Neural Networks (CNNs). We train two different CNNs on composite images produced by superimposing simulated gravitational arcs on real Luminous Red Galaxies observed in VOICE. Specifically, the first CNN is trained on single-band images and more easily identifies systems with large Einstein radii, while the second one, trained on composite RGB images, is more accurate in retrieving systems with smaller Einstein radii. We apply both networks to real data from the VOICE survey, taking advantage of the high limiting magnitude (26.1 in the r-band) and low PSF FWHM (0.8" in the r-band) of this deep survey. We analyse $\sim21,200$ images with $mag_r<21.5$, identifying 257 lens candidates. To retrieve a high-confidence sample and to assess the accuracy of our technique, nine of the authors perform a visual inspection. Roughly 75% of the systems are classified as likely lenses by at least one of the authors. Finally, we assemble the LIVE sample (Lenses In VoicE) composed by the 16 systems passing the chosen grading threshold. Three of these candidates show likely lensing features when observed by the Hubble Space Telescope. This work represents a further confirmation of the ability of CNNs to inspect large samples of galaxies searching for gravitational lenses. These algorithms will be crucial to exploit the full scientific potential of forthcoming surveys with the Euclid satellite and the Vera Rubin Observatory, Comment: 15 pages, 12 figures, submitted to MNRAS

Published
2021
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20. Lenses In VoicE (LIVE): Searching for strong gravitational lenses in the VOICE@VST survey using Convolutional Neural Networks

Author

Gentile, Fabrizio, Tortora, Crescenzo, Covone, Giovanni, Koopmans, Léon V. E., Spiniello, Chiara, Fan, Zuhui, Li, Rui, Liu, Dezi, Napolitano, Nicola R., Vaccari, Mattia, Fu, Liping, Gentile, Fabrizio, Tortora, Crescenzo, Covone, Giovanni, Koopmans, Léon V. E., Spiniello, Chiara, Fan, Zuhui, Li, Rui, Liu, Dezi, Napolitano, Nicola R., Vaccari, Mattia, and Fu, Liping

Abstract

We present a sample of 16 likely strong gravitational lenses identified in the VST Optical Imaging of the CDFS and ES1 fields (VOICE survey) using Convolutional Neural Networks (CNNs). We train two different CNNs on composite images produced by superimposing simulated gravitational arcs on real Luminous Red Galaxies observed in VOICE. Specifically, the first CNN is trained on single-band images and more easily identifies systems with large Einstein radii, while the second one, trained on composite RGB images, is more accurate in retrieving systems with smaller Einstein radii. We apply both networks to real data from the VOICE survey, taking advantage of the high limiting magnitude (26.1 in the r-band) and low PSF FWHM (0.8" in the r-band) of this deep survey. We analyse $\sim21,200$ images with $mag_r<21.5$, identifying 257 lens candidates. To retrieve a high-confidence sample and to assess the accuracy of our technique, nine of the authors perform a visual inspection. Roughly 75% of the systems are classified as likely lenses by at least one of the authors. Finally, we assemble the LIVE sample (Lenses In VoicE) composed by the 16 systems passing the chosen grading threshold. Three of these candidates show likely lensing features when observed by the Hubble Space Telescope. This work represents a further confirmation of the ability of CNNs to inspect large samples of galaxies searching for gravitational lenses. These algorithms will be crucial to exploit the full scientific potential of forthcoming surveys with the Euclid satellite and the Vera Rubin Observatory, Comment: 15 pages, 12 figures, submitted to MNRAS

Published
2021
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21. The Fornax Deep Survey with VST. IX. The catalog of sources in the FDS area, with an example study for globular clusters and background galaxies

Author

Cantiello, Michele, Venhola, Aku, Grado, Aniello, Paolillo, Maurizio, D'Abrusco, Raffaele, Raimondo, Gabriella, Quintini, Massimo, Hilker, Michael, Mieske, Steffen, Tortora, Crescenzo, Spavone, Marilena, Capaccioli, Massimo, Iodice, Enrica, Peletier, Reynier, Barroso, Jesus Falcon, Limatola, Luca, Napolitano, Nicola, Schipani, Pietro, van de Ven, Glenn, Gentile, Fabrizio, Covone, Giovanni, Cantiello, Michele, Venhola, Aku, Grado, Aniello, Paolillo, Maurizio, D'Abrusco, Raffaele, Raimondo, Gabriella, Quintini, Massimo, Hilker, Michael, Mieske, Steffen, Tortora, Crescenzo, Spavone, Marilena, Capaccioli, Massimo, Iodice, Enrica, Peletier, Reynier, Barroso, Jesus Falcon, Limatola, Luca, Napolitano, Nicola, Schipani, Pietro, van de Ven, Glenn, Gentile, Fabrizio, and Covone, Giovanni

Abstract

This paper continues the series of the Fornax Deep Survey (FDS). Following the previous studies dedicated to extended Fornax cluster members, we present the catalogs of compact stellar systems in the Fornax cluster as well as extended background sources and point-like sources. We derive ugri photometry of ~1.7 million sources over the $\sim$21 sq. degree area of FDS centered on NGC1399. For a wider area, of $\sim$27 sq. degs extending in the direction of NGC1316, we provide gri data for ~3.1 million sources. To improve the morphological characterization of sources we generate multi-band image stacks by coadding the best seeing gri-band single exposures with a cut at FWHM<=0.9 arcsec. We use the multi-band stacks as detection frames. The identification of compact sources is obtained from a combination of photometric and morphometric selection criteria taking as reference the properties of sources with well-defined classification from the literature. We present a preliminary analysis of globular cluster (GC) distributions in the Fornax area. The study confirms and extends further previous results. We observe the inter-galactic population of GCs, a population of mainly blue GCs centered on NGC1399, extends over $\sim$0.9Mpc, with an ellipticity $\sim$0.65. Several sub-structures extend over $\sim$0.5Mpc along various directions. Two of these structures do not cross any bright galaxy; one of them appears to be connected to NGC1404, a bright galaxy close to the cluster core and particularly poor of GCs. Using the gri catalogs we analyze the GC distribution over the extended FDS area, and do not find any obvious GC sub-structure bridging the two brightest cluster galaxies, NGC1316 and NGC1399. Although NGC1316 is twice brighter of NGC1399 in optical bands we estimate a factor of 3-4 richer GC population around NGC1399 compared to NGC1316, out to galactocentric distances of 40 arcmin, Comment: 25 pages, 18 figures, A&A accepted, tables 3-6 available on line

Published
2020
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22. The Fornax Deep Survey with VST. IX. The catalog of sources in the FDS area, with an example study for globular clusters and background galaxies

Author

Cantiello, Michele, Venhola, Aku, Grado, Aniello, Paolillo, Maurizio, D'Abrusco, Raffaele, Raimondo, Gabriella, Quintini, Massimo, Hilker, Michael, Mieske, Steffen, Tortora, Crescenzo, Spavone, Marilena, Capaccioli, Massimo, Iodice, Enrica, Peletier, Reynier, Barroso, Jesus Falcon, Limatola, Luca, Napolitano, Nicola, Schipani, Pietro, van de Ven, Glenn, Gentile, Fabrizio, Covone, Giovanni, Cantiello, Michele, Venhola, Aku, Grado, Aniello, Paolillo, Maurizio, D'Abrusco, Raffaele, Raimondo, Gabriella, Quintini, Massimo, Hilker, Michael, Mieske, Steffen, Tortora, Crescenzo, Spavone, Marilena, Capaccioli, Massimo, Iodice, Enrica, Peletier, Reynier, Barroso, Jesus Falcon, Limatola, Luca, Napolitano, Nicola, Schipani, Pietro, van de Ven, Glenn, Gentile, Fabrizio, and Covone, Giovanni

Abstract

This paper continues the series of the Fornax Deep Survey (FDS). Following the previous studies dedicated to extended Fornax cluster members, we present the catalogs of compact stellar systems in the Fornax cluster as well as extended background sources and point-like sources. We derive ugri photometry of ~1.7 million sources over the $\sim$21 sq. degree area of FDS centered on NGC1399. For a wider area, of $\sim$27 sq. degs extending in the direction of NGC1316, we provide gri data for ~3.1 million sources. To improve the morphological characterization of sources we generate multi-band image stacks by coadding the best seeing gri-band single exposures with a cut at FWHM<=0.9 arcsec. We use the multi-band stacks as detection frames. The identification of compact sources is obtained from a combination of photometric and morphometric selection criteria taking as reference the properties of sources with well-defined classification from the literature. We present a preliminary analysis of globular cluster (GC) distributions in the Fornax area. The study confirms and extends further previous results. We observe the inter-galactic population of GCs, a population of mainly blue GCs centered on NGC1399, extends over $\sim$0.9Mpc, with an ellipticity $\sim$0.65. Several sub-structures extend over $\sim$0.5Mpc along various directions. Two of these structures do not cross any bright galaxy; one of them appears to be connected to NGC1404, a bright galaxy close to the cluster core and particularly poor of GCs. Using the gri catalogs we analyze the GC distribution over the extended FDS area, and do not find any obvious GC sub-structure bridging the two brightest cluster galaxies, NGC1316 and NGC1399. Although NGC1316 is twice brighter of NGC1399 in optical bands we estimate a factor of 3-4 richer GC population around NGC1399 compared to NGC1316, out to galactocentric distances of 40 arcmin, Comment: 25 pages, 18 figures, A&A accepted, tables 3-6 available on line

Published
2020
Full Text
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23. The impact of human expert visual inspection on the discovery of strong gravitational lenses

Author

Rojas, Karina, Collett, Thomas E, Ballard, Daniel, Magee, Mark R, Birrer, Simon, Buckley-Geer, Elizabeth, Chan, James H H, Clément, Benjamin, Diego, José M, Gentile, Fabrizio, González, Jimena, Joseph, Rémy, Mastache, Jorge, Schuldt, Stefan, Tortora, Crescenzo, Verdugo, Tomás, Verma, Aprajita, Daylan, Tansu, Millon, Martin, Jackson, Neal, Dye, Simon, Melo, Alejandra, Mahler, Guillaume, Ogando, Ricardo L C, Courbin, Frédéric, Fritz, Alexander, Herle, Aniruddh, Barroso, Javier A Acevedo, Cañameras, Raoul, Cornen, Claude, Dhanasingham, Birendra, Glazebrook, Karl, Martinez, Michael N, Ryczanowski, Dan, Savary, Elodie, Góis-Silva, Filipe, Ureña-López, L Arturo, Wiesner, Matthew P, Wilde, Joshua, Calçada, Gabriel Valim, Cabanac, Rémi, Pan, Yue, Sierra, Isaac, Despali, Giulia, Cavalcante-Gomes, Micaele V., Macmillan, Christine, Maresca, Jacob, Grudskaia, Aleksandra, O’Donnell, Jackson H., Paic, Eric, Niemiec, Anna, de la Bella, Lucia F., Bromley, Jane M., Williams, Devon M., More, Anupreeta, Levine, Benjamin C., Rojas, Karina, Collett, Thomas E, Ballard, Daniel, Magee, Mark R, Birrer, Simon, Buckley-Geer, Elizabeth, Chan, James H H, Clément, Benjamin, Diego, José M, Gentile, Fabrizio, González, Jimena, Joseph, Rémy, Mastache, Jorge, Schuldt, Stefan, Tortora, Crescenzo, Verdugo, Tomás, Verma, Aprajita, Daylan, Tansu, Millon, Martin, Jackson, Neal, Dye, Simon, Melo, Alejandra, Mahler, Guillaume, Ogando, Ricardo L C, Courbin, Frédéric, Fritz, Alexander, Herle, Aniruddh, Barroso, Javier A Acevedo, Cañameras, Raoul, Cornen, Claude, Dhanasingham, Birendra, Glazebrook, Karl, Martinez, Michael N, Ryczanowski, Dan, Savary, Elodie, Góis-Silva, Filipe, Ureña-López, L Arturo, Wiesner, Matthew P, Wilde, Joshua, Calçada, Gabriel Valim, Cabanac, Rémi, Pan, Yue, Sierra, Isaac, Despali, Giulia, Cavalcante-Gomes, Micaele V., Macmillan, Christine, Maresca, Jacob, Grudskaia, Aleksandra, O’Donnell, Jackson H., Paic, Eric, Niemiec, Anna, de la Bella, Lucia F., Bromley, Jane M., Williams, Devon M., More, Anupreeta, and Levine, Benjamin C.

Abstract

We investigate the ability of human ’expert’ classifiers to identify strong gravitational lens candidates in Dark Energy Survey like imaging. We recruited a total of 55 people that completed more than 25% of the project. During the classification task, we present to the participants 1489 images. The sample contains a variety of data including lens simulations, real lenses, non-lens examples, and unlabeled data. We find that experts are extremely good at finding bright, well-resolved Einstein rings, whilst arcs with g-band signal-to-noise less than ∼25 or Einstein radii less than ∼1.2 times the seeing are rarely recovered. Very few non-lenses are scored highly. There is substantial variation in the performance of individual classifiers, but they do not appear to depend on the classifier’s experience, confidence or academic position. These variations can be mitigated with a team of 6 or more independent classifiers. Our results give confidence that humans are a reliable pruning step for lens candidates, providing pure and quantifiably complete samples for follow-up studies.

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