VVDS-SWIRE
| العنوان: | VVDS-SWIRE |
|---|---|
| المؤلفون: | S. Temporin, D. Maccagni, F. Lamareille, Duncan Farrah, Alain Mazure, C. J. Walcher, Paolo Ciliegi, Christian Marinoni, B. Garilli, V. Le Brun, O. Ilbert, D. Vergani, J. P. Picat, Fan Fang, L. Tresse, T. Contini, Angela Bongiorno, Jarle Brinchmann, E. Zucca, P. Franzetti, S. Paltani, Roberto Scaramella, R. Merighi, Stephane Arnouts, R. Pello, O. Le Fevre, Lucia Pozzetti, G. Zamorani, A. Zanichelli, Stéphane Charlot, M. Bondi, Mario Radovich, S. J. Oliver, H. J. McCracken, David L. Shupe, O. Cucciati, Carol J. Lonsdale, S. de la Torre, Yannick Mellier, D. Bottini, Bruno Marano, C. Adami, A. Pollo, I. Gavignaud, S. Bardelli, Paola Merluzzi, Luigi Guzzo, M. Bolzonella, I. Waddington, Marco Scodeggio, G. Vettolani, A. Iovino, Sylvie Foucaud, Jason Surace, B. Meneux, A. Cappi |
| المساهمون: | Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), INAF-Osservatorio Astronomico di Brera, Department of Astronomy, Cornell University, Infrared Processing Analysis Center, California Institute of Technology (IPAC), University of Sussex, Observatoire Astronomique de l'Université de Genève, Istituto di Astrofisica Spaziale e Fisica Cosmica (IASF-Milano), Spitzer Science Center, California Institute of Technology (SSC), Laboratoire Astrophysique de Toulouse-Tarbes (LATT), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), IRA-INAF, Bologna, INAF-Osservatorio Astronomico di Bologna (OABO), Max-Planck-Institut für Astrophysik (MPA), Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), School of Physics and Astronomy, University of Nottingham, Astrophysikalisches Institut Potsdam (AIP), Institute for Astronomy, University of Hawaii, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Centre National de la Recherche Scientifique (CNRS), Centre de Physique Théorique - UMR 7332 (CPT), Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), INTEGRAL Science Data Centre, INAF-Osservatorio Astronomico di Capodimonte (INAF-OAC), Centro de Astrofisica da Universidade do Porto (CAUP) |
| المصدر: | Astronomy and Astrophysics-A&A Astronomy and Astrophysics-A&A, 2007, 475, pp.443-451. ⟨10.1051/0004-6361:20077161⟩ |
| بيانات النشر: | EDP Sciences, 2007. |
| سنة النشر: | 2007 |
| مصطلحات موضوعية: | Physics, Star formation, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Correlation function (astronomy), Galaxy, Redshift, Luminosity, Photometry (optics), Stars, Space and Planetary Science, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Cluster analysis, Astrophysics::Galaxy Astrophysics |
| الوصف: | International audience; Aims:By combining data from the VIMOS VLT Deep Survey (VVDS) with the Spitzer Wide-area InfraRed Extragalactic survey (SWIRE), we have built the currently largest spectroscopic sample of high redshift galaxies selected in the rest-frame near-infrared. We have obtained 2040 spectroscopic redshifts of galaxies with (m3.6)_AB < 21.5 at 3.6 mu m, and 1255 spectroscopic redshifts of galaxies with (m4.5)_AB < 21. These allow us to investigate the clustering evolution of galaxies selected via their rest-frame near-infrared luminosity in the redshift range 0.2 < z < 2.1. Methods: We use the projected two-point correlation function w_p(r_p) to study the three dimensional clustering properties of galaxies detected at 3.6 mu m and 4.5 mu m with the InfraRed Array Camera (IRAC) in the SWIRE survey with measured spectroscopic redshifts from the first epoch VVDS. We compare these properties to those of a larger sample of 16672 SWIRE galaxies for which we have accurate photometric redshifts in the same field. Results: We find that in the 3.6 mu m and 4.5 mu m flux limited samples, the apparent correlation length does not change from redshift ~2 to the present. The measured correlation lengths have a mean value of r0 ~= 3.9±0.5 h-1 Mpc for the galaxies selected at 3.6 mu m and a mean value of r0 ~= 4.4±0.5 h-1 Mpc for the galaxies selected at 4.5 mu m, across the whole redshift range explored. These values are larger than those typicaly found for I-band selected galaxies at I_AB < 24, for which r0 varies from 2.69 h-1 Mpc to 3.63 h-1 Mpc between z = 0.5 to z = 2.1. We find that the difference in correlation length between I-band and 3.6-4.5 mum selected samples decreases with increasing redshift, becoming comparable at z ~= 1.5. We interpret this as evidence that galaxies with older stellar populations and galaxies actively forming stars reside in comparably over-dense environments at epochs earlier than z ~= 1.5, supporting the recently reported flattening of the color-density relation at high redshift. The increasing difference in correlation length with cosmic time observed between rest-frame UV-optical and near-infrared selected samples could then be an indication that star formation is gradually shifting to lower density regions with decreasing redshift, while the older, passively evolving galaxies remain in the most over-dense peaks. |
| وصف الملف: | application/pdf |
| تدمد: | 1432-0746 0004-6361 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ac2e27e96655fc8f088802f94dd3d8c https://doi.org/10.1051/0004-6361:20077161 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....4ac2e27e96655fc8f088802f94dd3d8c |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14320746 00046361 |
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