The Vimos VLT Deep Survey. Stellar mass segregation and large-scale galaxy environment in the redshift range 0.2 < z < 1.4

Marco Scodeggio (1) , D. Vergani (2) , O. Cucciati (3) , Angela Iovino (3) , P. Franzetti (1) , Bianca Garilli (1) , Fabrice Lamareille (4) , M. Bolzonella (5) , L. Pozzetti (5) , U. Abbas (6, 7) , Christian Marinoni (8) , Thierry Contini (4) , D. Bottini (1) , V. Le Brun (6) , Olivier Le Fèvre (6) , D. Maccagni (1) , R. Scaramella (9) , Laurence Tresse (6) , G. Vettolani (9) , A. Zanichelli (9) , C. Adami (6) , S. Arnouts (10, 6) , Sandro Bardelli (5) , A. Cappi (5) , Stéphane Charlot (11, 12) , Paolo Ciliegi (5) , S. Foucaud (13) , I. Gavignaud (14) , L. Guzzo (3) , Olivier Ilbert (15) , Henry J. Mccracken (11, 16) , B. Marano (2) , A. Mazure (6) , Baptiste Meneux (17) , R. Merighi (5) , S. Paltani (18) , R. Pello (4) , Agnieszka Pollo (19) , M. Radovich (20) , G. Zamorani (5) , E. Zucca (5) , M. Bondi (9) , Angela Bongiorno (17) , J. Brinchmann (21) , Sylvain de la Torre (6) , L. de Ravel (6) , L. Gregorini (9) , P. Memeo (1) , E. Pérez-Montero (4) , Yannick Mellier (11, 16) , Sonia Temporin (22) , C. Jakob Walcher (6)

1 IASF-Milano - Istituto di Astrofisica Spaziale e Fisica Cosmica
2 UNIBO - Alma Mater Studiorum Università di Bologna = University of Bologna
3 INAF-Osservatorio Astronomico di Brera
4 LATT - Laboratoire Astrophysique de Toulouse-Tarbes
5 OABO - INAF-Osservatorio Astronomico di Bologna
6 LAM - Laboratoire d'Astrophysique de Marseille
7 INAF-OATo - INAF-Osservatorio Astrofisico di Torino
8 CPT - Centre de Physique Théorique - UMR 7332
9 IRA-INAF, Bologna
10 CFHT - Canada-France-Hawaii Telescope Corporation
11 IAP - Institut d'Astrophysique de Paris
12 MPA - Max-Planck-Institut für Astrophysik
13 UON - University of Nottingham, UK
14 AIP - Astrophysikalisches Institut Potsdam
15 Institute for Astronomy, University of Hawaii
16 LERMA - Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique
17 MPE - Max-Planck-Institut für Extraterrestriche Physik
18 INTEGRAL Science Data Centre
19 The Andrzej Soltan Institute for Nuclear Studies
20 INAF-OAC - INAF-Osservatorio Astronomico di Capodimonte
21 Universidade do Porto = University of Porto
22 Universität Innsbruck [Innsbruck]

Context: Hierarchical models of galaxy formation predict that the properties of a dark matter halo depend on the large-scale environment surrounding the halo. As a result of this correlation, we expect massive haloes to be present in larger number in overdense regions than in underdense ones. Given that a correlation exists between a galaxy stellar mass and the hosting dark matter halo mass, the segregation in dark matter halo mass should then result in a segregation in the distribution of stellar mass in the galaxy population.
Aims: In this work we study the distribution of galaxy stellar mass and rest-frame optical color as a function of the large-scale galaxy distribution using the VLT VIMOS Deep Survey sample, in order to verify the presence of segregation in the properties of the galaxy population.
Methods: We use VVDS redshift measurements and multi-band photometric data to derive estimates of the stellar mass, rest-frame optical color, and of the large-scale galaxy density, on a scale of approximately 8 Mpc, for a sample of 5619 galaxies in the redshift range 0.2

Domaines: Astrophysique [astro-ph]

Marco Scodeggio, D. Vergani, O. Cucciati, Angela Iovino, P. Franzetti, et al.. The Vimos VLT Deep Survey. Stellar mass segregation and large-scale galaxy environment in the redshift range 0.2 < z < 1.4. Astronomy and Astrophysics - A&A, 2009, 501, pp.21-27. ⟨10.1051/0004-6361/200810511⟩. ⟨hal-03730777⟩