It does not exclude that other physical mechanisms, such as strong compaction and gas dissipation in field galaxies, followed by a sequence of mergers may have also played a significant role in the field ETG evolution, but not necessarily in the evolution of cluster galaxies. This could be explained by early-epoch differences in the formation and early evolution of galaxies in haloes of a different mass, as predicted by models. The passive ETG average size evolution with redshift is slower at 1 < z < 2 when compared to the field. We study the galaxy mass-size relation in 15 spectroscopically confirmed clusters at 1.4 10.5 are systematically ≳0.2 − 0.3dex larger (≳3 σ) than field ETGs at a similar redshift and mass from the CANDELS survey. School of Physics and Astronomy, University of Nottingham, University Park, Nottingham NG7 2RD, UKĭepartment of Physics, University of California, One Shields Avenue, Davis, CA 95616, USA Zentrum für Astronomie der Universität Heidelberg, Astronomisches Rechen-Institut, Mönchhofstr 12-14, 69120 Heidelberg, GermanyĮuropean Southern Observatory, Karl-Schwarzschildstrasse 2, 85748 Garching, Germany National Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 0LW, UKĭepartment of Astronomy, University of Florida, Gainesville, FL 32611-2055, USAĭepartment of Astronomy & Physics, Saint Mary’s University, 923 Robie Street, Halifax, NS B3H 3C3, Canada Université de Strasbourg, CNRS, Observatoire astronomique de Strasbourg, UMR 7550, 67000 Strasbourg, France School of Physics & Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ, UK Université Paris Cité, CNRS, Astroparticule et Cosmologie, 75013 Paris, FranceĮ-mail: Propulsion Laboratory, Cahill Center for Astronomy & Astrophysics, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, California, USA Gonzalez 6, Gaël Noirot 7, Alessandro Rettura 2, Dominika Wylezalek 8, Carlos De Breuck 9, Nina A. Afanasiev 1, Simona Mei 1 ,2, Hao Fu 3, Francesco Shankar 3, Stefania Amodeo 4, Daniel Stern 2, Elizabeth A. Astronomical objects: linking to databasesĪnton V.
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