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Euclid Quick Data Release (Q1). Photometric redshifts and physical properties of galaxies through the PHZ processing function

Astronomy & Astrophysics EDP Sciences (2025)

Authors:

M Tucci, S Paltani, WG Hartley, F Dubath, N Morisset, M Bolzonella, S Fotopoulou, F Tarsitano, C Saulder, L Pozzetti, A Enia, Y Kang, H Degaudenzi, R Saglia, M Salvato, O Ilbert, SA Stanford, W Roster, FJ Castander, A Humphrey, H Landt, M Selwood, G Stevens, N Aghanim, B Altieri, A Amara, S Andreon, N Auricchio, H Aussel, C Baccigalupi, M Baldi, A Balestra, S Bardelli, P Battaglia, AN Belikov, F Bernardeau, A Biviano, A Bonchi, E Branchini, M Brescia, J Brinchmann, S Camera, G Ca nas-Herrera, V Capobianco, C Carbone, J Carretero, S Casas, M Castellano, G Castignani, S Cavuoti, KC Chambers, A Cimatti, C Colodro-Conde, G Congedo, CJ Conselice, L Conversi, Y Copin, F Courbin, HM Courtois, M Cropper, A Da Silva, G De Lucia, AM Di Giorgio, H Dole, CAJ Duncan, X Dupac, A Ealet, S Escoffier, M Fabricius, M Farina, R Farinelli, S Ferriol, F Finelli, N Fourmanoit, M Frailis, E Franceschi, M Fumana, S Galeotta, K George, W Gillard, B Gillis, C Giocoli, P G'omez-Alvarez, J Gracia-Carpio, BR Granett, A Grazian, F Grupp, SVH Haugan, J Hoar, H Hoekstra, W Holmes, IM Hook, F Hormuth, A Hornstrup, P Hudelot, K Jahnke, M Jhabvala, B Joachimi, E Keih"anen, S Kermiche, A Kiessling, M Kilbinger, B Kubik, M K"ummel, M Kunz, H Kurki-Suonio, Q Le Boulc'h, AMC Le Brun, D Le Mignant, P Liebing, S Ligori, PB Lilje, V Lindholm, I Lloro, G Mainetti, D Maino, E Maiorano, O Mansutti, S Marcin, O Marggraf, M Martinelli, N Martinet, F Marulli, R Massey, DC Masters, S Maurogordato, HJ McCracken, E Medinaceli, S Mei, M Melchior, Y Mellier, M Meneghetti, E Merlin, G Meylan, A Mora, M Moresco, L Moscardini, R Nakajima, C Neissner, S-M Niemi, JW Nightingale, C Padilla, F Pasian, K Pedersen, WJ Percival, V Pettorino, S Pires, G Polenta, M Poncet, LA Popa, GD Racca, F Raison, R Rebolo, A Renzi, J Rhodes, G Riccio, E Romelli, M Roncarelli, B Rusholme, Z Sakr, AG S'anchez, D Sapone, B Sartoris, JA Schewtschenko, M Schirmer, P Schneider, A Secroun, E Sefusatti, M Seiffert, S Serrano, P Simon, C Sirignano, G Sirri, A Spurio Mancini, L Stanco, J Steinwagner, P Tallada-Crespí, AN Taylor, HI Teplitz, I Tereno, N Tessore, S Toft, R Toledo-Moreo, F Torradeflot, I Tutusaus, EA Valentijn, L Valenziano, J Valiviita, T Vassallo, G Verdoes Kleijn, A Veropalumbo, Y Wang, J Weller, A Zacchei, G Zamorani, FM Zerbi, IA Zinchenko, E Zucca, V Allevato, M Ballardini, C Burigana, R Cabanac, A Cappi, P Casenove, D Di Ferdinando, JA Escartin Vigo, G Fabbian, L Gabarra, M Huertas-Company, J Martín-Fleitas, S Matthew, M Maturi, N Mauri, RB Metcalf, A Nucita, A Pezzotta, M P"ontinen, C Porciani, I Risso, V Scottez, M Sereno, M Tenti, M Viel, M Wiesmann, Y Akrami, IT Andika, S Anselmi, M Archidiacono, F Atrio-Barandela, C Benoist, K Benson, D Bertacca, M Bethermin, L Bisigello, A Blanchard, L Blot, H B"ohringer, S Borgani, ML Brown, S Bruton, A Calabro, B Camacho Quevedo, F Caro, CS Carvalho, T Castro, R Chary, F Cogato, AR Cooray, O Cucciati, S Davini, F De Paolis, G Desprez, A D'iaz-S'anchez, J Diaz, S Di Domizio, JM Diego, P-A Duc, Y Fang, AMN Ferguson, AG Ferrari, PG Ferreira, A Finoguenov, A Fontana, A Franco, K Ganga, J Garc'ia-Bellido, T Gasparetto, V Gautard, E Gaztanaga, F Giacomini, AH Gonzalez, G Gozaliasl, M Guidi, CM Gutierrez, A Hall, S Hemmati, C Hern'andez-Monteagudo, H Hildebrandt, J Hjorth, JE Kajava, V Kansal, D Karagiannis, K Kiiveri, C Kirkpatrick, S Kruk, J Le Graet, L Legrand, M Lembo, F Lepori, G Leroy, GF Lesci, J Lesgourgues, L Leuzzi, TI Liaudat, A Loureiro, J Macias-Perez, G Maggio, M Magliocchetti, EA Magnier, F Mannucci, R Maoli, CJAP Martins, L Maurin, M Miluzio, P Monaco, C Moretti, G Morgante, S Nadathur, K Naidoo, A Navarro-Alsina, S Nesseris, M Oguri, F Passalacqua, K Paterson, L Patrizii, A Pisani, D Potter, S Quai, M Radovich, P-F Rocci, G Rodighiero, S Sacquegna, M Sahl'en, DB Sanders, E Sarpa, C Scarlata, J Schaye, A Schneider, D Sciotti, E Sellentin, LC Smith, K Tanidis, G Testera, R Teyssier, S Tosi, A Troja, C Valieri, A Venhola, D Vergani, G Verza, P Vielzeuf, NA Walton, JR Weaver, JG Sorce, E Soubrie, D Scott
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Redshift tomography of the kinematic matter dipole

Physical Review D American Physical Society (APS) 111:12 (2025) 123547

Authors:

Sebastian von Hausegger, Charles Dalang

Abstract:

The dipole anisotropy induced by our peculiar motion in the sky distribution of cosmologically distant sources is an important consistency test of the standard Friedmann-Lemaître-Robertson-Walker cosmology. In this work, we formalize how to compute the kinematic matter dipole in redshift bins. Apart from the usual terms arising from angular aberration and flux boosting, there is a contribution from the boosting of the redshifts that becomes important when considering a sample selected on observed redshift, leading to nonvanishing correction terms. We discuss examples and provide expressions to incorporate arbitrary redshift selection functions. We also discuss the effect of redshift measurement uncertainties in this context, in particular in upcoming surveys for which we provide estimates of the correction terms. Depending on the shape of a sample’s redshift distribution and on the applied redshift cuts, the correction terms can become substantial, even to the degree that the direction of the dipole is reversed. Lastly, we discuss how cuts on variables correlated with observed redshift, such as color, can induce additional correction terms. Published by the American Physical Society 2025
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syren-baryon: Analytic emulators for the impact of baryons on the matter power spectrum

(2025)

Authors:

Lukas Kammerer, Deaglan J Bartlett, Gabriel Kronberger, Harry Desmond, Pedro G Ferreira
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Euclid preparation: The NISP spectroscopy channel, on ground performance and calibration

(2025)

Authors:

Euclid Collaboration, W Gillard, T Maciaszek, E Prieto, F Grupp, A Costille, K Jahnke, J Clemens, S Dusini, M Carle, C Sirignano, E Medinaceli, S Ligori, E Franceschi, M Trifoglio, W Bon, R Barbier, S Ferriol, A Secroun, N Auricchio, P Battaglia, C Bonoli, L Corcione, F Hormuth, D Le Mignant, G Morgante, C Padilla, R Toledo-Moreo, L Valenziano, R Bender, FJ Castander, PB Lilje, A Balestra, J-JC Barriere, M Berthe, C Boderndorf, A Bonnefoi, V Capobianco, R Casas, H Cho, F Ducret, J-L Gimenez, W Holmes, A Hornstrup, M Jhabvala, E Jullo, R Kohley, B Kubik, R Laureijs, I Lloro, C Macabiau, Y Mellier, G Polenta, GD Racca, A Renzi, M Schirmer, G Seidel, M Seiffert, G Sirri, G Smadja, L Stanco, S Wachter, H Aussel, T Auphan, BR Granett, R Chary, Y Copin, P Hudelot, V Le Brun, F Torradeflot, PN Appleton, P Casenove, P-Y Chabaud, M Frailis, M Fumana, L Guzzo, G Mainetti, D Maino, M Moresco, WJ Percival, R Scaramella, M Scodeggio, NR Stickley, D Vibert, Y Wang, J Zoubian, N Aghanim, B Altieri, A Amara, S Andreon, C Baccigalupi, M Baldi, S Bardelli, A Biviano, A Bonchi, E Branchini, M Brescia, J Brinchmann, S Camera, G Cañas-Herrera, C Carbone, J Carretero, S Casas, M Castellano, G Castignani, S Cavuoti, KC Chambers, A Cimatti, C Colodro-Conde, G Congedo, CJ Conselice, L Conversi, F Courbin, HM Courtois, J-G Cuby, A Da Silva, R da Silva, H Degaudenzi, G De Lucia, AM Di Giorgio, H Dole, M Douspis, F Dubath, X Dupac, S Escoffier, M Fabricius, M Farina, R Farinelli, P Fosalba, S Fotopoulou, N Fourmanoit, P Franzetti, S Galeotta, K George, B Gillis, C Giocoli, P Gómez-Alvarez, J Gracia-Carpio, A Grazian, SVH Haugan, J Hoar, H Hoekstra, IM Hook, E Keihänen, S Kermiche, A Kiessling, M Kümmel, M Kunz, H Kurki-Suonio, Q Le Boulc'h, AMC Le Brun, P Liebing, V Lindholm, E Maiorano, O Mansutti, S Marcin, O Marggraf, K Markovic, M Martinelli, N Martinet, F Marulli, R Massey, S Maurogordato, HJ McCracken, S Mei, M Melchior, M Meneghetti, E Merlin, G Meylan, A Mora, L Moscardini, R Nakajima, C Neissner, RC Nichol, S-M Niemi, JW Nightingale, S Paltani, F Pasian, K Pedersen, V Pettorino, S Pires, M Poncet, LA Popa, L Pozzetti, F Raison, R Rebolo, J Rhodes, G Riccio, E Romelli, M Roncarelli, E Rossetti, R Saglia, Z Sakr, AG Sánchez, D Sapone, B Sartoris, JA Schewtschenko, P Schneider, T Schrabback, E Sefusatti, P Simon, J Steinwagner, P Tallada-Crespí, D Tavagnacco, AN Taylor, HI Teplitz, I Tereno, S Toft, I Tutusaus, J Valiviita, T Vassallo, G Verdoes Kleijn, A Veropalumbo, J Weller, A Zacchei, G Zamorani, FM Zerbi, IA Zinchenko, E Zucca, V Allevato, M Ballardini, M Bolzonella, E Bozzo, C Burigana, R Cabanac, A Cappi, D Di Ferdinando, JA Escartin Vigo, L Gabarra, WG Hartley, J Martín-Fleitas, S Matthew, N Mauri, RB Metcalf, A Pezzotta, M Pöntinen, C Porciani, I Risso, V Scottez, M Sereno, M Tenti, M Viel, M Wiesmann, Y Akrami, IT Andika, S Anselmi, M Archidiacono, F Atrio-Barandela, D Bertacca, M Bethermin, A Blanchard, L Blot, S Borgani, ML Brown, S Bruton, A Calabro, B Camacho Quevedo, F Caro, CS Carvalho, T Castro, Y Charles, F Cogato, S Conseil, AR Cooray, O Cucciati, S Davini, F De Paolis, G Desprez, A Díaz-Sánchez, JJ Diaz, S Di Domizio, JM Diego, P Dimauro, P-A Duc, A Enia, Y Fang, AMN Ferguson, AG Ferrari, A Finoguenov, A Franco, K Ganga, J García-Bellido, T Gasparetto, V Gautard, E Gaztanaga, F Giacomini, F Gianotti, G Gozaliasl, A Gregorio, M Guidi, CM Gutierrez, A Hall, S Hemmati, C Hernández-Monteagudo, H Hildebrandt, J Hjorth, JJE Kajava, Y Kang, V Kansal, D Karagiannis, K Kiiveri, CC Kirkpatrick, S Kruk, J Le Graet, L Legrand, M Lembo, F Lepori, G Leroy, GF Lesci, J Lesgourgues, L Leuzzi, TI Liaudat, SJ Liu, A Loureiro, J Macias-Perez, G Maggio, M Magliocchetti, C Mancini, F Mannucci, R Maoli, CJAP Martins, L Maurin, CJR McPartland, M Miluzio, P Monaco, A Montoro, C Moretti, S Nadathur, K Naidoo, A Navarro-Alsina, F Passalacqua, K Paterson, L Patrizii, A Pisani, D Potter, S Quai, M Radovich, P-F Rocci, S Sacquegna, M Sahlén, DB Sanders, E Sarpa, A Schneider, D Sciotti, E Sellentin, LC Smith, K Tanidis, C Tao, G Testera, R Teyssier, S Tosi, A Troja, M Tucci, C Valieri, A Venhola, D Vergani, G Verza, NA Walton, L Zalesky
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Euclid : Quick Data Release (Q1) – Photometric studies of known transients

Astronomy & Astrophysics EDP Sciences 711 (2025) A38-A38

Authors:

C Duffy, E Cappellaro, MT Botticella, IM Hook, F Poidevin, TJ Moriya, AA Chrimes, V Petrecca, K Paterson, A Goobar, L Galbany, R Kotak, C Gall, CM Gutierrez, C Tao, L Izzo, N Aghanim, B Altieri, A Amara, S Andreon, N Auricchio, C Baccigalupi, M Baldi, A Balestra, S Bardelli

Abstract:

We report on serendipitous Euclid observations of previously known transients, using the Euclid Q1 data release. By cross-matching with the Transient Name Server (TNS) we identify 164 transients that coincide with the data release. Although the Euclid Q1 release only includes single-epoch data, we are able to make Euclid photometric measurements at the location of 161 of these transients where 67 had a significant flux measurement in at least one band . Euclid obtained deep photometric measurements or upper limits of these transients in the and bands at various phases of the transient light curves, including before, during, and after the observations of ground-based transient surveys. Approximately 70% of known transients reported in the six months before the Euclid observation date and with a discovery magnitude brighter than 24 were detected in Euclid IE images. Our observations include one of the earliest near-infrared detections of a Type Ia supernova (SN 2024pvw) 15 days prior to its peak brightness, and the late-phase (435.9 days post peak) observations of the enigmatic core-collapse SN 2023aew. Euclid deep photometry provides valuable information on the nature of these transients such as their progenitor systems and power with late-time observations being a uniquely powerful contribution . In addition, Euclid is able to detect the host galaxies of some transients that were previously classed as hostless. The Q1 data demonstrate the power of the Euclid data even with only single-epoch observations available, as will be the case for much larger areas of sky in the Euclid Wide Survey
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