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Proceedings Paper

VIPERS view of the star formation history of early-type galaxies
Author(s): M. Siudek; K. Malek; B. Garilli; M. Scodeggio; A. Fritz; A. Pollo; U. Abbas; C. Adami; S. Arnouts; J. Bel; M. Bolzonella; D. Bottini; E. Branchini; A. Cappi; J. Coupon; O. Cucciati; I. Davidzon; G. De Lucia; S. de la Torre; P. Franzetti; M. Fumana; B. R. Granett; L. Guzzo; O. Ilbert; A. Iovino; J. Krywult; V. Le Brun; O. Le Fèvre; D. Maccagni; F. Marulli; H. J. McCracken; L. Paioro; M. Polletta; H. Schlagenhaufer; L. A. M. Tasca; R. Tojeiro; D. Vergani; A. Zanichelli; A. Burden; C. Di Porto; A. Marchetti; C. Marinoni; Y. Mellier; L. Moscardini; R. C. Nichol; J. A. Peacock; W. J. Percival; S. Phleps; M. Wolk; G. Zamorani
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Paper Abstract

We present studies over the relations between stellar mass, redshift and star formation history for a high quality sample of early-type galaxies (ETGs) observed by the by the VIMOS Public Extragalactic Redshift Survey (VIPERS). VIPERS is an ongoing Large Programme to map in detail the large-scale distribution of galaxies at 0:5 < z < 1:2 with a unique volume (24 deg2) and sampling rate (~= 45%). At this redshift, IPERS fills a unique niche in galaxy surveys, provides a exceptional opportunity to study galaxies and their evolution at an epoch when the Universe had approximately half its current age. VIPERS data set will become the z ~ 1 equivalent of current state-of-the-art local (z < 0:2) surveys, allowing us to compare measurements at these two different epochs on equal statistical footing. The final sample of this survey is going to reach nearly 100,000 galaxies. As the VIPERS sample contains ~ 15% of the early type galaxies with known spectroscopic redshift and a very good quality spectra, it is a perfect sample to study the star formation history based on their spectroscopic features. We show that there the age of stellar population is depending on the stellar mass and the redshift. Our results show that lower mass galaxies have young stellar populations, while higher mass ETGs are populated with old stars. This suggest that marginal star formation occurs in massive galaxies. This result is consistent with the observations of the local Universe. Moreover, this trend of evolution is preserved for the different redshift range between 0:4 < z < 1:2.

Paper Details

Date Published: 11 September 2015
PDF: 15 pages
Proc. SPIE 9662, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2015, 966213 (11 September 2015); doi: 10.1117/12.2202710
Show Author Affiliations
M. Siudek, Ctr. for Theoretical Physics (Poland)
K. Malek, National Ctr. for Nuclear Research (Poland)
B. Garilli, INAF - IASF Milano (Italy)
Aix-Marseille Univ., CNRS, LAM (France)
M. Scodeggio, INAF - IASF Milano (Italy)
A. Fritz, INAF - IASF Milano (Italy)
A. Pollo, National Ctr. for Nuclear Research (Poland)
Jagiellonian Univ. (Poland)
U. Abbas, INAF - Osservatorio Astronomico di Torino (Italy)
C. Adami, Aix-Marseille Univ., CNRS, LAM (France)
S. Arnouts, Canada-France-Hawaii Telescope (United States)
J. Bel, Canada-France-Hawaii Telescope (United States)
M. Bolzonella, INAF - Osservatorio Astronomico di Bologna (Italy)
D. Bottini, INAF - IASF Milano (Italy)
E. Branchini, Univ. degli Studi di Roma Tre (Italy)
INFN (Italy)
INAF - Osservatorio Astronomico di Roma (Italy)
A. Cappi, INAF - Osservatorio Astronomico di Bologna (Italy)
Lab. Lagrange, Univ. de Nice Sophia Antipolis, CNRS (Italy)
J. Coupon, Univ. of Geneva (Switzerland)
O. Cucciati, Univ. di Bologna (Italy)
INAF - Osservatorio Astronomico di Bologna (Italy)
I. Davidzon, Aix-Marseille Univ., CNRS, LAM (France)
INAF - Osservatorio Astronomico di Bologna (Italy)
G. De Lucia, INAF - Osservatorio Astronomico di Trieste (Italy)
S. de la Torre, Aix-Marseille Univ., CNRS, LAM (France)
P. Franzetti, INAF - IASF Milano (Italy)
M. Fumana, INAF - IASF Milano (Italy)
B. R. Granett, INAF - Osservatorio Astronomico di Brera (Italy)
L. Guzzo, INAF - Osservatorio Astronomico di Brera (Italy)
Univ. di Milano-Bicocca (Italy)
O. Ilbert, Aix-Marseille Univ., CNRS, LAM (France)
A. Iovino, INAF - Osservatorio Astronomico di Brera (Italy)
J. Krywult, Jan Kochanowski Univ. (Poland)
V. Le Brun, Aix-Marseille Univ., CNRS, LAM (France)
O. Le Fèvre, Aix-Marseille Univ., CNRS, LAM (France)
D. Maccagni, INAF - IASF Milano (Italy)
F. Marulli, Univ. di Bologna (Italy)
INFN (Italy)
INAF - Osservatorio Astronomico di Bologna (Italy)
H. J. McCracken, Institut d'Astrophysique de Paris, CNRS, Univ. Pierre et Marie Curie (France)
L. Paioro, INAF - IASF Milano (Italy)
M. Polletta, INAF - IASF Milano (Italy)
H. Schlagenhaufer, Univ. München, Ludwig-Maximillians Univ. (Germany)
Max-Planck-Institut für Extraterrestrische Physik (Germany)
L. A. M. Tasca, Aix-Marseille Univ., CNRS, LAM (France)
R. Tojeiro, Univ. of Portsmouth (United Kingdom)
D. Vergani, INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica Bologna (Italy)
INAF - Osservatorio Astronomico di Bologna (Italy)
A. Zanichelli, INAF - Istituto di Radioastronomia (Italy)
A. Burden, Univ. of Portsmouth (United Kingdom)
C. Di Porto, INAF - Osservatorio Astronomico di Bologna (Italy)
A. Marchetti, Univ. degli Studi di Milano (Italy)
INAF - Osservatorio Astronomico di Brera (Italy)
C. Marinoni, Aix Marseille Univ., CNRS, CPT (France)
INAF - Osservatorio Astronomico di Roma (Italy)
Univ. de Toulon, CNRS, CPT (France)
Y. Mellier, Institute d'Astrophysique de Paris, CNRS, Univ. Pierre et Marie Curie (France)
L. Moscardini, Univ. di Bologna (Italy)
INFN (Italy)
INAF - Osservatorio Astronomico di Bologna (Italy)
R. C. Nichol, Univ. of Portsmouth (United Kingdom)
J. A. Peacock, The Royal Observatory, Edinburgh (United Kingdom)
W. J. Percival, Univ. of Portsmouth (United Kingdom)
S. Phleps, Max-Planck-Institut für Extraterrestrische Physik (Germany)
M. Wolk, Institute d'Astrophysique de Paris, CNRS, Univ. Pierre et Marie Curie (France)
G. Zamorani, INAF - Osservatorio Astronomico di Bologna (Italy)


Published in SPIE Proceedings Vol. 9662:
Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2015
Ryszard S. Romaniuk, Editor(s)

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