Euclid preparation XXXVII. Galaxy colour selections with Euclid and ground photometry for cluster weak-lensing analyses
Aims. We derived galaxy colour selections from Euclid and ground-based photometry, aiming to accurately define background galaxy samples in cluster weak-lensing analyses. These selections have been implemented in the Euclid data analysis pipelines for galaxy clusters. Methods. Given any set of photo...
| Autores: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositorio: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:2445/220989 |
| Acceso en línea: | https://hdl.handle.net/2445/220989 http://hdl.handle.net/2445/220989 |
| Access Level: | acceso abierto |
| Palabra clave: | Cosmologia Cúmuls de galàxies Fotometria Cosmology Clusters of galaxies Photometry |
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oai:recercat.cat:2445/220989 |
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| dc.title.none.fl_str_mv |
Euclid preparation XXXVII. Galaxy colour selections with Euclid and ground photometry for cluster weak-lensing analyses |
| title |
Euclid preparation XXXVII. Galaxy colour selections with Euclid and ground photometry for cluster weak-lensing analyses |
| spellingShingle |
Euclid preparation XXXVII. Galaxy colour selections with Euclid and ground photometry for cluster weak-lensing analyses Lesci, G.F. Cosmologia Cúmuls de galàxies Fotometria Cosmology Clusters of galaxies Photometry |
| title_short |
Euclid preparation XXXVII. Galaxy colour selections with Euclid and ground photometry for cluster weak-lensing analyses |
| title_full |
Euclid preparation XXXVII. Galaxy colour selections with Euclid and ground photometry for cluster weak-lensing analyses |
| title_fullStr |
Euclid preparation XXXVII. Galaxy colour selections with Euclid and ground photometry for cluster weak-lensing analyses |
| title_full_unstemmed |
Euclid preparation XXXVII. Galaxy colour selections with Euclid and ground photometry for cluster weak-lensing analyses |
| title_sort |
Euclid preparation XXXVII. Galaxy colour selections with Euclid and ground photometry for cluster weak-lensing analyses |
| dc.creator.none.fl_str_mv |
Lesci, G.F. Sereno, M. Radovich, M. Castignani, G. Bisigello, Laura Marulli, F. Moscardini, L. Baumont, L. Covone, G. Farrens, S. Giocoli, C. Ingoglia, L. Miranda La Hera, S. Vannier, M. Biviano, A. Maurogordato, S. Aghanim, N. Amara, A. Andreon, S. Auricchio, N. Baldi, M. Bardelli, S. Bender, R. Bodendorf, C. Bonino, D. Branchini, E. Brescia, M. Brinchmann, J. Camera, S. Capobianco, V. Carbone, C. Carretero, J. Casas, S. Castander, F.J. Castellano, M. Cavuoti, S. Cimatti, A. Congedo, G. Conselice, C.J. Conversi, L. Copin, Y. Corcione, L. Courbin, Frederic Courtois, H.M. Da Silva, A. Degaudenzi, H. Di Giorgio, A.M. Dinis, J. Dubath, F. Duncan, C.A.J. Dupac, X. Dusini, S. Farina, M. Ferriol, S. Fosalba, Pablo Fotopoulou, S. Frailis, M. Franceschi, E. Franzetti, P. Fumana, M. Galeotta, S. Garilli, B. Gillis, B. Grazian, A. Grupp, F. Haugan, S.V.H. Hook, I. Hormuth, F. Hornstrup, A. Hudelot, P. Jahnke, K. Kümmel, M. Kermiche, S. Kiessling, A. Kilbinger, M. Kubik, B. Kunz, M. Kurki-Suonio, H. Ligori, S. Lilje, P.B. Lindholm, V. Lloro, I. Maiorano, E. Mansutti, O. Marggraf, O. Markovic, K. Martinet, N. Massey, R. Medinaceli, E. Melchior, M. Mellier, Y. Meneghetti, M. Merlin, E. Meylan, G. Moresco, M. Munari, E. Nakajima, R. Niemi, S.-M. Padilla, C. Paltani, S. Pasian, F. Pedersen, K. Pettorino, V. Pires, S. Polenta, G. Poncet, M. Popa, L.A. Pozzetti, L. Raison, F. Rebolo, R. Renzi, A. Rhodes, J. Riccio, G. Romelli, E. Roncarelli, M. Rossetti, E. Saglia, R. Sapone, D. Sartoris, B. Schirmer, M. Schneider, P. Secroun, A. Seidel, G. Serrano, Susana Sirignano, C. Sirri, G. Skottfelt, J. Stanco, L. Starck, J.-L. Tallada-Crespí, P. Taylor, A.N. Teplitz, H.I. Tereno, I. Toledo-Moreo, R. Torradeflot, F. Tutusaus, I. Valentijn, E.A. Valenziano, L. Vassallo, T. Veropalumbo, A. Wang, Yan Weller, J. Zacchei, A. Zamorani, G. Zoubian, J. Zucca, E. Bolzonella, M. Bozzo, E. Colodro-Conde, C. Di Ferdinando, D. Graciá-Carpio, J. Marcin, S. Mauri, Nuria Neissner, C. Nucita, A.A. Sakr, Z. Scottez, V. Tenti, M. Viel, M. Wiesmann, M. Akrami, Y. Anselmi, S. Baccigalupi, C. Ballardini, M. Borgani, S. Borlaff, A.S. Bruton, S. Burigana, C. Cabanac, R. Calabro, A. Cappi, A. Carvalho, C.S. Castro, T. Cañas-Herrera, G. Chambers, K.C. Cooray, A.R. Coupon, J. Cucciati, O. Davini, S. De La Torre, S. De Lucia, G. Desprez, G. Di Domizio, S. Dole, H. Díaz-Sánchez, A. Escartin Vigo, J.A. Escoffier, S. Ferrero, I. Finelli, F. Gabarra, L. Ganga, K. García-Bellido, J. Giacomini, F. Gozaliasl, G. Gwyn, S. Hildebrandt, H. Huertas-Company, M. Jimenez Muñoz, A. Kajava, J.J.E. Kansal, V. Kirkpatrick, C.C. Legrand, L. Loureiro, Ana MacIas-Perez, J. Magliocchetti, M. Mainetti, G. Maoli, R. Martinelli, M. Martins, C.J.A.P. Matthew, S. Maturi, M. Maurin, L. Metcalf, R.B. Migliaccio, Marina Monaco, P. Morgante, G. Nadathur, S. Patrizii, L. Pezzotta, A. Porciani, C. Potter, D. Pöntinen, M. Reimberg, P. Rocci, P.-F. Sánchez, A.G. Schneider, A. Schultheis, M. Sefusatti, E. Simon, P. Spurio Mancini, A. Stanford, S.A. Steinwagner, J. Testera, G. Teyssier, R. Toft, Søren Tosi, S. Troja, A. Tucci, M. Valiviita, J. Vergani, D. |
| author |
Lesci, G.F. |
| author_facet |
Lesci, G.F. Sereno, M. Radovich, M. Castignani, G. Bisigello, Laura Marulli, F. Moscardini, L. Baumont, L. Covone, G. Farrens, S. Giocoli, C. Ingoglia, L. Miranda La Hera, S. Vannier, M. Biviano, A. Maurogordato, S. Aghanim, N. Amara, A. Andreon, S. Auricchio, N. Baldi, M. Bardelli, S. Bender, R. Bodendorf, C. Bonino, D. Branchini, E. Brescia, M. Brinchmann, J. Camera, S. Capobianco, V. Carbone, C. Carretero, J. Casas, S. Castander, F.J. Castellano, M. Cavuoti, S. Cimatti, A. Congedo, G. Conselice, C.J. Conversi, L. Copin, Y. Corcione, L. Courbin, Frederic Courtois, H.M. Da Silva, A. Degaudenzi, H. Di Giorgio, A.M. Dinis, J. Dubath, F. Duncan, C.A.J. Dupac, X. Dusini, S. Farina, M. Ferriol, S. Fosalba, Pablo Fotopoulou, S. Frailis, M. Franceschi, E. Franzetti, P. Fumana, M. Galeotta, S. Garilli, B. Gillis, B. Grazian, A. Grupp, F. Haugan, S.V.H. Hook, I. Hormuth, F. Hornstrup, A. Hudelot, P. Jahnke, K. Kümmel, M. Kermiche, S. Kiessling, A. Kilbinger, M. Kubik, B. Kunz, M. Kurki-Suonio, H. Ligori, S. Lilje, P.B. Lindholm, V. Lloro, I. Maiorano, E. Mansutti, O. Marggraf, O. Markovic, K. Martinet, N. Massey, R. Medinaceli, E. Melchior, M. Mellier, Y. Meneghetti, M. Merlin, E. Meylan, G. Moresco, M. Munari, E. Nakajima, R. Niemi, S.-M. Padilla, C. Paltani, S. Pasian, F. Pedersen, K. Pettorino, V. Pires, S. Polenta, G. Poncet, M. Popa, L.A. Pozzetti, L. Raison, F. Rebolo, R. Renzi, A. Rhodes, J. Riccio, G. Romelli, E. Roncarelli, M. Rossetti, E. Saglia, R. Sapone, D. Sartoris, B. Schirmer, M. Schneider, P. Secroun, A. Seidel, G. Serrano, Susana Sirignano, C. Sirri, G. Skottfelt, J. Stanco, L. Starck, J.-L. Tallada-Crespí, P. Taylor, A.N. Teplitz, H.I. Tereno, I. Toledo-Moreo, R. Torradeflot, F. Tutusaus, I. Valentijn, E.A. Valenziano, L. Vassallo, T. Veropalumbo, A. Wang, Yan Weller, J. Zacchei, A. Zamorani, G. Zoubian, J. Zucca, E. Bolzonella, M. Bozzo, E. Colodro-Conde, C. Di Ferdinando, D. Graciá-Carpio, J. Marcin, S. Mauri, Nuria Neissner, C. Nucita, A.A. Sakr, Z. Scottez, V. Tenti, M. Viel, M. Wiesmann, M. Akrami, Y. Anselmi, S. Baccigalupi, C. Ballardini, M. Borgani, S. Borlaff, A.S. Bruton, S. Burigana, C. Cabanac, R. Calabro, A. Cappi, A. Carvalho, C.S. Castro, T. Cañas-Herrera, G. Chambers, K.C. Cooray, A.R. Coupon, J. Cucciati, O. Davini, S. De La Torre, S. De Lucia, G. Desprez, G. Di Domizio, S. Dole, H. Díaz-Sánchez, A. Escartin Vigo, J.A. Escoffier, S. Ferrero, I. Finelli, F. Gabarra, L. Ganga, K. García-Bellido, J. Giacomini, F. Gozaliasl, G. Gwyn, S. Hildebrandt, H. Huertas-Company, M. Jimenez Muñoz, A. Kajava, J.J.E. Kansal, V. Kirkpatrick, C.C. Legrand, L. Loureiro, Ana MacIas-Perez, J. Magliocchetti, M. Mainetti, G. Maoli, R. Martinelli, M. Martins, C.J.A.P. Matthew, S. Maturi, M. Maurin, L. Metcalf, R.B. Migliaccio, Marina Monaco, P. Morgante, G. Nadathur, S. Patrizii, L. Pezzotta, A. Porciani, C. Potter, D. Pöntinen, M. Reimberg, P. Rocci, P.-F. Sánchez, A.G. Schneider, A. Schultheis, M. Sefusatti, E. Simon, P. Spurio Mancini, A. Stanford, S.A. Steinwagner, J. Testera, G. Teyssier, R. Toft, Søren Tosi, S. Troja, A. Tucci, M. Valiviita, J. Vergani, D. |
| author_role |
author |
| author2 |
Sereno, M. Radovich, M. Castignani, G. Bisigello, Laura Marulli, F. Moscardini, L. Baumont, L. Covone, G. Farrens, S. Giocoli, C. Ingoglia, L. Miranda La Hera, S. Vannier, M. Biviano, A. Maurogordato, S. Aghanim, N. Amara, A. Andreon, S. Auricchio, N. Baldi, M. Bardelli, S. Bender, R. Bodendorf, C. Bonino, D. Branchini, E. Brescia, M. Brinchmann, J. Camera, S. Capobianco, V. Carbone, C. Carretero, J. Casas, S. Castander, F.J. Castellano, M. Cavuoti, S. Cimatti, A. Congedo, G. Conselice, C.J. Conversi, L. Copin, Y. Corcione, L. Courbin, Frederic Courtois, H.M. Da Silva, A. Degaudenzi, H. Di Giorgio, A.M. Dinis, J. Dubath, F. Duncan, C.A.J. Dupac, X. Dusini, S. Farina, M. Ferriol, S. Fosalba, Pablo Fotopoulou, S. Frailis, M. Franceschi, E. Franzetti, P. Fumana, M. Galeotta, S. Garilli, B. Gillis, B. Grazian, A. Grupp, F. Haugan, S.V.H. Hook, I. Hormuth, F. Hornstrup, A. Hudelot, P. Jahnke, K. Kümmel, M. Kermiche, S. Kiessling, A. Kilbinger, M. Kubik, B. Kunz, M. Kurki-Suonio, H. Ligori, S. Lilje, P.B. Lindholm, V. Lloro, I. Maiorano, E. Mansutti, O. Marggraf, O. Markovic, K. Martinet, N. Massey, R. Medinaceli, E. Melchior, M. Mellier, Y. Meneghetti, M. Merlin, E. Meylan, G. Moresco, M. Munari, E. Nakajima, R. Niemi, S.-M. Padilla, C. Paltani, S. Pasian, F. Pedersen, K. Pettorino, V. Pires, S. Polenta, G. Poncet, M. Popa, L.A. Pozzetti, L. Raison, F. Rebolo, R. Renzi, A. Rhodes, J. Riccio, G. Romelli, E. Roncarelli, M. Rossetti, E. Saglia, R. Sapone, D. Sartoris, B. Schirmer, M. Schneider, P. Secroun, A. Seidel, G. Serrano, Susana Sirignano, C. Sirri, G. Skottfelt, J. Stanco, L. Starck, J.-L. Tallada-Crespí, P. Taylor, A.N. Teplitz, H.I. Tereno, I. Toledo-Moreo, R. Torradeflot, F. Tutusaus, I. Valentijn, E.A. Valenziano, L. Vassallo, T. Veropalumbo, A. Wang, Yan Weller, J. Zacchei, A. Zamorani, G. Zoubian, J. Zucca, E. Bolzonella, M. Bozzo, E. Colodro-Conde, C. Di Ferdinando, D. Graciá-Carpio, J. Marcin, S. Mauri, Nuria Neissner, C. Nucita, A.A. Sakr, Z. Scottez, V. Tenti, M. Viel, M. Wiesmann, M. Akrami, Y. Anselmi, S. Baccigalupi, C. Ballardini, M. Borgani, S. Borlaff, A.S. Bruton, S. Burigana, C. Cabanac, R. Calabro, A. Cappi, A. Carvalho, C.S. Castro, T. Cañas-Herrera, G. Chambers, K.C. Cooray, A.R. Coupon, J. Cucciati, O. Davini, S. De La Torre, S. De Lucia, G. Desprez, G. Di Domizio, S. Dole, H. Díaz-Sánchez, A. Escartin Vigo, J.A. Escoffier, S. Ferrero, I. Finelli, F. Gabarra, L. Ganga, K. García-Bellido, J. Giacomini, F. Gozaliasl, G. Gwyn, S. Hildebrandt, H. Huertas-Company, M. Jimenez Muñoz, A. Kajava, J.J.E. Kansal, V. Kirkpatrick, C.C. Legrand, L. Loureiro, Ana MacIas-Perez, J. Magliocchetti, M. Mainetti, G. Maoli, R. Martinelli, M. Martins, C.J.A.P. Matthew, S. Maturi, M. Maurin, L. Metcalf, R.B. Migliaccio, Marina Monaco, P. Morgante, G. Nadathur, S. Patrizii, L. Pezzotta, A. Porciani, C. Potter, D. Pöntinen, M. Reimberg, P. Rocci, P.-F. Sánchez, A.G. Schneider, A. Schultheis, M. Sefusatti, E. Simon, P. Spurio Mancini, A. Stanford, S.A. Steinwagner, J. Testera, G. Teyssier, R. Toft, Søren Tosi, S. Troja, A. Tucci, M. Valiviita, J. Vergani, D. |
| author2_role |
author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Cosmologia Cúmuls de galàxies Fotometria Cosmology Clusters of galaxies Photometry |
| topic |
Cosmologia Cúmuls de galàxies Fotometria Cosmology Clusters of galaxies Photometry |
| description |
Aims. We derived galaxy colour selections from Euclid and ground-based photometry, aiming to accurately define background galaxy samples in cluster weak-lensing analyses. These selections have been implemented in the Euclid data analysis pipelines for galaxy clusters. Methods. Given any set of photometric bands, we developed a method for the calibration of optimal galaxy colour selections that maximises the selection completeness, given a threshold on purity. Such colour selections are expressed as a function of the lens redshift. Results. We calibrated galaxy selections using simulated ground-based griz and Euclid YE JEHE photometry. Both selections produce a purity higher than 97%. The griz selection completeness ranges from 30% to 84% in the lens redshift range zl ∈ [0.2, 0.8]. With the full grizYE JEHE selection, the completeness improves by up to 25 percentage points, and the zl range extends up to zl = 1.5. The calibrated colour selections are stable to changes in the sample limiting magnitudes and redshift, and the selection based on griz bands provides excellent results on real external datasets. Furthermore, the calibrated selections provide stable results using alternative photometric aperture definitions obtained from different ground-based telescopes. The griz selection is also purer at high redshift and more complete at low redshift compared to colour selections found in the literature. We find excellent agreement in terms of purity and completeness between the analysis of an independent, simulated Euclid galaxy catalogue and our calibration sample, except for galaxies at high redshifts, for which we obtain up to 50 percentage points higher completeness. The combination of colour and photo-z selections applied to simulated Euclid data yields up to 95% completeness, while the purity decreases down to 92% at high zl . We show that the calibrated colour selections provide robust results even when observations from a single band are missing from the ground-based data. Finally, we show that colour selections do not disrupt the shear calibration for stage III surveys. The first Euclid data releases will provide further insights into the impact of background selections on the shear calibration. |
| publishDate |
2024 |
| dc.date.none.fl_str_mv |
2024 2025 2025 2025 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/2445/220989 http://hdl.handle.net/2445/220989 |
| url |
https://hdl.handle.net/2445/220989 http://hdl.handle.net/2445/220989 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
Reproducció del document publicat a: https://doi.org/10.1051/0004-6361/202348743 Astronomy & Astrophysics, 2024, vol. 684, num.A139 https://doi.org/10.1051/0004-6361/202348743 |
| dc.rights.none.fl_str_mv |
(c) The European Southern Observatory (ESO), 2024 info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
(c) The European Southern Observatory (ESO), 2024 |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
19 p. application/pdf |
| dc.publisher.none.fl_str_mv |
EDP Sciences |
| publisher.none.fl_str_mv |
EDP Sciences |
| dc.source.none.fl_str_mv |
Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) reponame:Recercat. Dipósit de la Recerca de Catalunya instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| instname_str |
Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| reponame_str |
Recercat. Dipósit de la Recerca de Catalunya |
| collection |
Recercat. Dipósit de la Recerca de Catalunya |
| repository.name.fl_str_mv |
|
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|
| _version_ |
1869409600918257664 |
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Euclid preparation XXXVII. Galaxy colour selections with Euclid and ground photometry for cluster weak-lensing analysesLesci, G.F.Sereno, M.Radovich, M.Castignani, G.Bisigello, LauraMarulli, F.Moscardini, L.Baumont, L.Covone, G.Farrens, S.Giocoli, C.Ingoglia, L.Miranda La Hera, S.Vannier, M.Biviano, A.Maurogordato, S.Aghanim, N.Amara, A.Andreon, S.Auricchio, N.Baldi, M.Bardelli, S.Bender, R.Bodendorf, C.Bonino, D.Branchini, E.Brescia, M.Brinchmann, J.Camera, S.Capobianco, V.Carbone, C.Carretero, J.Casas, S.Castander, F.J.Castellano, M.Cavuoti, S.Cimatti, A.Congedo, G.Conselice, C.J.Conversi, L.Copin, Y.Corcione, L.Courbin, FredericCourtois, H.M.Da Silva, A.Degaudenzi, H.Di Giorgio, A.M.Dinis, J.Dubath, F.Duncan, C.A.J.Dupac, X.Dusini, S.Farina, M.Ferriol, S.Fosalba, PabloFotopoulou, S.Frailis, M.Franceschi, E.Franzetti, P.Fumana, M.Galeotta, S.Garilli, B.Gillis, B.Grazian, A.Grupp, F.Haugan, S.V.H.Hook, I.Hormuth, F.Hornstrup, A.Hudelot, P.Jahnke, K.Kümmel, M.Kermiche, S.Kiessling, A.Kilbinger, M.Kubik, B.Kunz, M.Kurki-Suonio, H.Ligori, S.Lilje, P.B.Lindholm, V.Lloro, I.Maiorano, E.Mansutti, O.Marggraf, O.Markovic, K.Martinet, N.Massey, R.Medinaceli, E.Melchior, M.Mellier, Y.Meneghetti, M.Merlin, E.Meylan, G.Moresco, M.Munari, E.Nakajima, R.Niemi, S.-M.Padilla, C.Paltani, S.Pasian, F.Pedersen, K.Pettorino, V.Pires, S.Polenta, G.Poncet, M.Popa, L.A.Pozzetti, L.Raison, F.Rebolo, R.Renzi, A.Rhodes, J.Riccio, G.Romelli, E.Roncarelli, M.Rossetti, E.Saglia, R.Sapone, D.Sartoris, B.Schirmer, M.Schneider, P.Secroun, A.Seidel, G.Serrano, SusanaSirignano, C.Sirri, G.Skottfelt, J.Stanco, L.Starck, J.-L.Tallada-Crespí, P.Taylor, A.N.Teplitz, H.I.Tereno, I.Toledo-Moreo, R.Torradeflot, F.Tutusaus, I.Valentijn, E.A.Valenziano, L.Vassallo, T.Veropalumbo, A.Wang, YanWeller, J.Zacchei, A.Zamorani, G.Zoubian, J.Zucca, E.Bolzonella, M.Bozzo, E.Colodro-Conde, C.Di Ferdinando, D.Graciá-Carpio, J.Marcin, S.Mauri, NuriaNeissner, C.Nucita, A.A.Sakr, Z.Scottez, V.Tenti, M.Viel, M.Wiesmann, M.Akrami, Y.Anselmi, S.Baccigalupi, C.Ballardini, M.Borgani, S.Borlaff, A.S.Bruton, S.Burigana, C.Cabanac, R.Calabro, A.Cappi, A.Carvalho, C.S.Castro, T.Cañas-Herrera, G.Chambers, K.C.Cooray, A.R.Coupon, J.Cucciati, O.Davini, S.De La Torre, S.De Lucia, G.Desprez, G.Di Domizio, S.Dole, H.Díaz-Sánchez, A.Escartin Vigo, J.A.Escoffier, S.Ferrero, I.Finelli, F.Gabarra, L.Ganga, K.García-Bellido, J.Giacomini, F.Gozaliasl, G.Gwyn, S.Hildebrandt, H.Huertas-Company, M.Jimenez Muñoz, A.Kajava, J.J.E.Kansal, V.Kirkpatrick, C.C.Legrand, L.Loureiro, AnaMacIas-Perez, J.Magliocchetti, M.Mainetti, G.Maoli, R.Martinelli, M.Martins, C.J.A.P.Matthew, S.Maturi, M.Maurin, L.Metcalf, R.B.Migliaccio, MarinaMonaco, P.Morgante, G.Nadathur, S.Patrizii, L.Pezzotta, A.Porciani, C.Potter, D.Pöntinen, M.Reimberg, P.Rocci, P.-F.Sánchez, A.G.Schneider, A.Schultheis, M.Sefusatti, E.Simon, P.Spurio Mancini, A.Stanford, S.A.Steinwagner, J.Testera, G.Teyssier, R.Toft, SørenTosi, S.Troja, A.Tucci, M.Valiviita, J.Vergani, D.CosmologiaCúmuls de galàxiesFotometriaCosmologyClusters of galaxiesPhotometryAims. We derived galaxy colour selections from Euclid and ground-based photometry, aiming to accurately define background galaxy samples in cluster weak-lensing analyses. These selections have been implemented in the Euclid data analysis pipelines for galaxy clusters. Methods. Given any set of photometric bands, we developed a method for the calibration of optimal galaxy colour selections that maximises the selection completeness, given a threshold on purity. Such colour selections are expressed as a function of the lens redshift. Results. We calibrated galaxy selections using simulated ground-based griz and Euclid YE JEHE photometry. Both selections produce a purity higher than 97%. The griz selection completeness ranges from 30% to 84% in the lens redshift range zl ∈ [0.2, 0.8]. With the full grizYE JEHE selection, the completeness improves by up to 25 percentage points, and the zl range extends up to zl = 1.5. The calibrated colour selections are stable to changes in the sample limiting magnitudes and redshift, and the selection based on griz bands provides excellent results on real external datasets. Furthermore, the calibrated selections provide stable results using alternative photometric aperture definitions obtained from different ground-based telescopes. The griz selection is also purer at high redshift and more complete at low redshift compared to colour selections found in the literature. We find excellent agreement in terms of purity and completeness between the analysis of an independent, simulated Euclid galaxy catalogue and our calibration sample, except for galaxies at high redshifts, for which we obtain up to 50 percentage points higher completeness. The combination of colour and photo-z selections applied to simulated Euclid data yields up to 95% completeness, while the purity decreases down to 92% at high zl . We show that the calibrated colour selections provide robust results even when observations from a single band are missing from the ground-based data. Finally, we show that colour selections do not disrupt the shear calibration for stage III surveys. The first Euclid data releases will provide further insights into the impact of background selections on the shear calibration. EDP Sciences2025202520242025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion19 p.application/pdfhttps://hdl.handle.net/2445/220989http://hdl.handle.net/2445/220989Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.1051/0004-6361/202348743Astronomy & Astrophysics, 2024, vol. 684, num.A139https://doi.org/10.1051/0004-6361/202348743(c) The European Southern Observatory (ESO), 2024info:eu-repo/semantics/openAccessoai:recercat.cat:2445/2209892026-05-29T05:05:01Z |
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