<i>Euclid</i>: Early Release Observations – NISP-only sources and the search for luminous <i>z</i> = 6–8 galaxies

This paper presents a search for high redshift galaxies from the Euclid Early Release Observations program ‘Magnifying Lens.’ The 1.5 deg 2 area covered by the twin Abell lensing cluster fields is comparable in size to the few other deep near-infrared surveys such as COSMOS, and so provides an opportunity to significantly increase known samples of rare UV-bright galaxies at z ≈ 6–8 ( M UV ≲ −22). Beyond their still uncertain role in reionisation, these UV-bright galaxies are ideal laboratories from which to study galaxy formation and constrain the bright-end of the UV luminosity function. Of the 501 994 sources detected from a combined Y E , J E , and H E NISP detection image, 168 do not have any appreciable VIS/ I E flux. These objects span a range in spectral colours, separated into two classes: 139 extremely red sources; and 29 Lyman-break galaxy candidates. Best-fit redshifts and spectral templates suggest the former is composed of both z ≳ 5 dusty star-forming galaxies and z ≈ 1–3 quiescent systems. The latter is composed of more homogeneous Lyman-break galaxies at z ≈ 6–8. In both cases, contamination by L- and T-type dwarfs cannot be ruled out with Euclid images alone. Additional contamination from instrumental persistence is investigated using a novel time series analysis. This work lays the foundation for future searches within the Euclid Deep Fields, where thousands more z ≳ 6 Lyman-break systems and extremely red sources will be identified.

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Journal
Astronomy and Astrophysics
Published
2024-08-19
DOI
https://doi.org/10.1051/0004-6361/202450794
Citations
5
Primary Topic
Astronomy and Astrophysical Research
Type
article
Field-Weighted Citation Impact
2.53

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article

Euclid: Early Release Observations – NISP-only sources and the search for luminous z = 6–8 galaxies

G. Seidel, J. Brinchmann, G. Rodighiero, P. G'omez-Alvarez et al.
5 citations
Astronomy and Astrophysics
Astronomy and Astrophysical Research
2.53
article

Euclid: Early Release Observations – NISP-only sources and the search for luminous z = 6–8 galaxies

G. Seidel, J. Brinchmann, G. Rodighiero, P. G'omez-Alvarez, Will J. Percival, R. P. Saglia, Nathan Allen, G. Murphree, G. Riccio, L. Conversi, D. Le Mignant, C. Sirignano, M. Brescia, E. Merlin, I. Hook, M. Kunz, C. Padilla, J. Carretero, M. Schirmer, D. B. Sanders, F. Marulli, O. Marggraf, Arvind C. N. Hughes, Marko Shuntov, N. A. Hatch, Patrice Simon, F. Courbin, Y. Copin, A. Kiessling, M. Jhabvala, G. Sirri, M. Viel, E Maiorano, S. Maurogordato, F. Grupp, Sina Taamoli, S. Bardelli, Francisco Javier Castander, Harry I. Teplitz, T. Kitching, R.A. Bowler, M. Melchior, V. Capobianco, S.-M Niemi, T. Schrabback, M Miluzio, D. Stern, S. Farrens, T. Saifollahi, S. Andreon, S. V. H. Haugan, R. Massey, T. Vassallo, J.-C. Cuillandre, R. Laureijs, S. Paltani, R. Toledo-Moreo, J. Hoar, M. Moresco, D. Sapone, S. Belladitta, M. Meneghetti, H. J. McCracken, N. Martinet, D. Bonino, A. Veropalumbo, M. Poncet, L. Valenziano, H. Dole, E. Romelli, C. Burigana, A. M. Di Giorgio, Christopher J. Conselice, Henk Hoekstra, H. Degaudenzi, O. Mansutti, L. Moscardini, B. Milvang-Jensen, A. Ealet, N. Aghanim, Peter Eisenhardt, W. Gillard, Bahram Mobasher, S. Pires, A. Grazian, B. Gillis, M. Castellano, John R. Weaver, F. Dubath, M. Kümmel, A. Hornstrup, R. Bender, S. Fotopoulou, E. Rossetti, E. Medinaceli, F. Hormuth, D Scott, A. Balestra, K. Jahnkę, V. Pettorino, E. Branchini, B. Altieri, A. Secroun, M. Farina, F. Pasian, L. Guzzo, Stephen Serjeant, J. Weller, P. Franzetti, J. Rhodes, S. Galeotta, F. Raison, E. Franceschi, Daniel Masters, Marco Baldi, L. Zalesky, J Martín-Fleitas, C.J.R. McPartland, C. Stone, C. Giocoli, István Szapudi, K. Markovič, Hakim Atek, A Amara, S. Camera, J. J. Mohr, R. Gavazzi, Pascal A. Oesch, J. Dinis, V. Lindholm, P.-F Rocci, E. Keihänen, G. Meylan, G. Castignani, P. C. Schneider, R. Nakajima, S. Cavuoti, N. Auricchio, Michael Kluge, M. Frailis, V Scottez, Z. Sakr, C. Carbone, S. Kermiche, L. Corcione, W. Holmes, Sune Toft, J. M. Diego, P. B. Lilje, A.N. Taylor, S. Serrano, M. Douspis, L. Pozzetti, H. M. Courtois, G. Polenta, C. Bodendorf, R. C. Nichol, i, M. Ezziati, I Valdes, Yun Wang, A. Da Silva, L. Stančo, K. Ito, I. Lloro, M. Roncarelli, I. Tutusaus, Y. Mellier, D. Maino, A. Cimatti, I. Tereno, A Renzi, L. A. Popa, O. Lahav, H. Kurki‐Suonio, P. Hudelot, S Mei, K. Pedersen, B. Kubik, X Dupac, V. F. Cardone, S. Casas, E Zucca, S. Ferriol, S Ligori, G. Congedo, D. Mortlock
article en
5 citations

Abstract

This paper presents a search for high redshift galaxies from the Euclid Early Release Observations program ‘Magnifying Lens.’ The 1.5 deg 2 area covered by the twin Abell lensing cluster fields is comparable in size to the few other deep near-infrared surveys such as COSMOS, and so provides an opportunity to significantly increase known samples of rare UV-bright galaxies at z ≈ 6–8 ( M UV ≲ −22). Beyond their still uncertain role in reionisation, these UV-bright galaxies are ideal laboratories from which to study galaxy formation and constrain the bright-end of the UV luminosity function. Of the 501 994 sources detected from a combined Y E , J E , and H E NISP detection image, 168 do not have any appreciable VIS/ I E flux. These objects span a range in spectral colours, separated into two classes: 139 extremely red sources; and 29 Lyman-break galaxy candidates. Best-fit redshifts and spectral templates suggest the former is composed of both z ≳ 5 dusty star-forming galaxies and z ≈ 1–3 quiescent systems. The latter is composed of more homogeneous Lyman-break galaxies at z ≈ 6–8. In both cases, contamination by L- and T-type dwarfs cannot be ruled out with Euclid images alone. Additional contamination from instrumental persistence is investigated using a novel time series analysis. This work lays the foundation for future searches within the Euclid Deep Fields, where thousands more z ≳ 6 Lyman-break systems and extremely red sources will be identified.

Astronomy and AstrophysicsVol. 697
Université Claude Bernard Lyon 1 (FR), University of California, Riverside (US), University of Geneva (CH), Leiden University (NL), California Institute of Technology (US), University of Copenhagen (DK), Centre National de la Recherche Scientifique (FR), Goddard Space Flight Center (US), Institute of Space Sciences (ES), University of Hawaii System (US), Jet Propulsion Laboratory (US), University of Helsinki (FI), Université Toulouse III - Paul Sabatier (FR), University of Bonn (DE), Scuola Internazionale Superiore di Studi Avanzati (IT), University of Padua (IT), University of Lisbon (PT), University of British Columbia (CA), University of Nottingham (GB), University of Trieste (IT), University of Waterloo (CA), University of Groningen (NL), Université Fédérale de Toulouse Midi-Pyrénées (FR), Universidade do Porto (PT), Perimeter Institute (CA), Saint Joseph University (LB), University of Oslo (NO), Institute for High Energy Physics (ES), University of Milan (IT), Durham University (GB), Universität Innsbruck (AT), Université Côte d'Azur (FR), The Open University (GB), Aarhus University (DK), Université Paris Cité (FR), Aix-Marseille Université (FR), Heidelberg University (DE), University of Massachusetts Amherst (US), Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR), Université Paris-Saclay (FR), Centre National d'Études Spatiales (FR), Helsinki Institute of Physics (FI), Astronomical Observatory of Rome (IT), Agenzia Spaziale Italiana (IT), Trieste Astronomical Observatory (IT), Institut d'Astrophysique de Paris (FR), Astronomical Observatory of Capodimonte (IT), Laboratoire AstroParticule et Cosmologie (FR), Observatoire astronomique de Strasbourg (FR), Brera Astronomical Observatory (IT), University of Surrey (GB), University of Manchester (GB), FHNW University of Applied Sciences and Arts Northwestern Switzerland (CH), Institute for High Performance Computing and Networking (IT), Universidad Politécnica de Cartagena (ES), University of Bristol (GB), Sorbonne Université (FR), Técnicas Reunidas (Spain) (ES), Astrophysique, Instrumentation et Modélisation (FR), Institute of Astrophysics and Space Sciences (PT), Max Planck Institute for Extraterrestrial Physics (DE), Institut d'Estudis Espacials de Catalunya (ES), European Space Astronomy Centre (ES), Centre de physique des particules de Marseille (FR), Laboratoire d’Astrophysique de Marseille (FR), Istituto Nazionale di Fisica Nucleare, Sezione di Torino (IT), Institute for Space Astrophysics and Planetology (IT), Institut d'Astrophysique Spatiale (FR), Istituto Nazionale di Fisica Nucleare, Sezione di Padova (IT), Osservatorio Astrofisico di Torino (IT), Royal Observatory (GB), Istituto Nazionale di Fisica Nucleare, Sezione di Napoli (IT), Max Planck Institute for Astronomy (DE), Lagrange Laboratory (FR), Istituto di Radioastronomia di Bologna (IT), Château Gombert (FR), Federico II University Hospital (IT), Université Bourgogne Franche-Comté (FR), Cegep Edouard Montpetit (CA), Istituto Nazionale di Fisica Nucleare, Sezione di Genova (IT), Observatoire de la Côte d’Azur (FR), CEA Paris-Saclay (FR), Institut National de Physique Nucléaire et de Physique des Particules (FR), Istituto Nazionale di Fisica Nucleare, Sezione di Milano (IT), Institute of Space Science - INFLPR Subsidiary (RO), Istituto Nazionale di Fisica Nucleare, Sezione di Bologna (IT), Port d'Informació Científica (ES), Istituto Nazionale di Fisica Nucleare, Sezione di Trieste (IT), Institute for Fundamental Physics of the Universe (IT), Instituto de Física de Cantabria (ES), Institute of Nuclear Physics of Lyon (FR), Istituto Nazionale di Fisica Nucleare, Sezione di Roma I (IT), Osservatorio Astronomico di Padova (IT), European Space Research Institute (IT), Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (ES), Institut de Recherche en Astrophysique et Planétologie (FR), Infrared Processing and Analysis Center (US), Osservatorio di Astrofisica e Scienza dello Spazio, Fondazione ICSC Centro Nazionale di Ricerca in High Performance Computing, Big Data e Quantum Computing, Institut de Physique des 2 Infinis de Lyon (FR), European Space Research and Technology Centre (NL), University College London (GB), Imperial College London (GB), École Polytechnique Fédérale de Lausanne (CH), University of Turin (IT), Lancaster University (GB), Université de Strasbourg (FR), University of Chile (CL), Heidelberg Institute for Theoretical Studies (DE), The University of Tokyo (JP), Ludwig-Maximilians-Universität München (DE), University of Genoa (IT), National Institute for Astrophysics (IT), RWTH Aachen University (DE), Netherlands Institute for Radio Astronomy (NL), University of Bologna (IT), Universitat Politècnica de Catalunya (ES), Technical University of Denmark (DK), University of Edinburgh (GB)
National Aeronautics and Space Administration, European Space Agency, National Research Foundation, Danmarks Grundforskningsfond, Centre National d’Etudes Spatiales, Magyar Tudományos Akadémia, Agenzia Spaziale Italiana, Conseil Régional, Île-de-France, National Astronomical Observatory of Japan, Agenția Spațială Română, Norsk Romsenter, Natural Sciences and Engineering Research Council of Canada, Fundação para a Ciência e a Tecnologia
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