The VIMOS Public Extragalactic Redshift Survey (VIPERS). Star formation history of passive red galaxies

M. Siudek; K. Małek; M. Scodeggio; B. Garilli; A. Pollo; C. P. Haines; A. Fritz; M. Bolzonella; S. de la Torre; B. R. Granett; L. Guzzo; U. Abbas; C. Adami; D. Bottini; A. Cappi; O. Cucciati; G. De Lucia; I. Davidzon; P. Franzetti; A. Iovino; J. Krywult; V. Le Brun; O. Le Fèvre; D. Maccagni; A. Marchetti; F. Marulli; M. Polletta; L. A. M. Tasca; R. Tojeiro; D. Vergani; A. Zanichelli; S. Arnouts; J. Bel; E. Branchini; O. Ilbert; A. Gargiulo; L. Moscardini; T. T. Takeuchi; G. Zamorani

doi:10.1051/0004-6361/201628951

The VIMOS Public Extragalactic Redshift Survey (VIPERS). Star formation history of passive red galaxies

M. Siudek, K. Małek, M. Scodeggio, B. Garilli, A. Pollo, C. P. Haines, A. Fritz, M. Bolzonella, S. de la Torre, B. R. Granett, L. Guzzo, U. Abbas, C. Adami, D. Bottini, A. Cappi, O. Cucciati, G. De Lucia, I. Davidzon, P. Franzetti, A. IovinoJ. Krywult, V. Le Brun, O. Le Fèvre, D. Maccagni, A. Marchetti, F. Marulli, M. Polletta, L. A. M. Tasca, R. Tojeiro, D. Vergani, A. Zanichelli, S. Arnouts, J. Bel, E. Branchini, O. Ilbert, A. Gargiulo, L. Moscardini, T. T. Takeuchi, G. Zamorani

School of Physics and Astronomy

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Abstract

Aims. We trace the evolution and the star formation history of passive red galaxies, using a subset of the VIMOS Public Extragalactic Redshift Survey (VIPERS). The detailed spectral analysis of stellar populations of intermediate-redshift passive red galaxies allows the build up of their stellar content to be followed over the last 8 billion years.
Methods. We extracted a sample of passive red galaxies in the redshift range 0.4 Results. We find that at z ~ 1 stellar populations in low-mass passive red galaxies are younger than in high-mass passive red galaxies, similar to what is observed at the present epoch. Over the full analyzed redshift range 0.4 < z < 1.0 and stellar mass range 10 < log (M_star/M⊙) < 12, the D4000 index increases with redshift, while HδA gets lower. This implies that the stellar populations are getting older with increasing stellar mass. Comparison to the spectra of passive red galaxies in the SDSS survey (z ~ 0.2) shows that the shape of the relations of D4000 and HδA with stellar mass has not changed significantly with redshift. Assuming a single burst formation, this implies that high-mass passive red galaxies formed their stars at z_form ~ 1.7, while low-mass galaxies formed their main stellar populations more recently, at z_form ~ 1. The consistency of these results, which were obtained using two independent estimators of the formation redshift (D4000 and HδA), further strengthens a scenario in which star formation proceeds from higher to lower mass systems as time passes, i.e., what has become known as the downsizing picture.

Original language	English
Article number	A107
Number of pages	17
Journal	Astronomy & Astrophysics
Volume	597
Early online date	11 Jan 2017
DOIs	https://doi.org/10.1051/0004-6361/201628951
Publication status	Published - Jan 2017

Keywords

Galaxies: evolution
Galaxies: stellar content

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© 2017, ESO. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at www.aanda.org / https://doi.org/10.1051/0004-6361/201628951
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Siudek, M., Małek, K., Scodeggio, M., Garilli, B., Pollo, A., Haines, C. P., Fritz, A., Bolzonella, M., de la Torre, S., Granett, B. R., Guzzo, L., Abbas, U., Adami, C., Bottini, D., Cappi, A., Cucciati, O., De Lucia, G., Davidzon, I., Franzetti, P., ... Zamorani, G. (2017). The VIMOS Public Extragalactic Redshift Survey (VIPERS). Star formation history of passive red galaxies. Astronomy & Astrophysics, 597, Article A107. https://doi.org/10.1051/0004-6361/201628951

@article{167e0d47539f4e88912da4fc239ee45d,

title = "The VIMOS Public Extragalactic Redshift Survey (VIPERS). Star formation history of passive red galaxies",

abstract = "Aims. We trace the evolution and the star formation history of passive red galaxies, using a subset of the VIMOS Public Extragalactic Redshift Survey (VIPERS). The detailed spectral analysis of stellar populations of intermediate-redshift passive red galaxies allows the build up of their stellar content to be followed over the last 8 billion years.Methods. We extracted a sample of passive red galaxies in the redshift range 0.4 Results. We find that at z ~ 1 stellar populations in low-mass passive red galaxies are younger than in high-mass passive red galaxies, similar to what is observed at the present epoch. Over the full analyzed redshift range 0.4 < z < 1.0 and stellar mass range 10 < log (Mstar/M⊙) < 12, the D4000 index increases with redshift, while HδA gets lower. This implies that the stellar populations are getting older with increasing stellar mass. Comparison to the spectra of passive red galaxies in the SDSS survey (z ~ 0.2) shows that the shape of the relations of D4000 and HδA with stellar mass has not changed significantly with redshift. Assuming a single burst formation, this implies that high-mass passive red galaxies formed their stars at zform ~ 1.7, while low-mass galaxies formed their main stellar populations more recently, at zform ~ 1. The consistency of these results, which were obtained using two independent estimators of the formation redshift (D4000 and HδA), further strengthens a scenario in which star formation proceeds from higher to lower mass systems as time passes, i.e., what has become known as the downsizing picture.",

keywords = "Galaxies: evolution, Galaxies: stellar content",

author = "M. Siudek and K. Ma{\l}ek and M. Scodeggio and B. Garilli and A. Pollo and Haines, {C. P.} and A. Fritz and M. Bolzonella and {de la Torre}, S. and Granett, {B. R.} and L. Guzzo and U. Abbas and C. Adami and D. Bottini and A. Cappi and O. Cucciati and {De Lucia}, G. and I. Davidzon and P. Franzetti and A. Iovino and J. Krywult and {Le Brun}, V. and {Le F{\`e}vre}, O. and D. Maccagni and A. Marchetti and F. Marulli and M. Polletta and Tasca, {L. A. M.} and R. Tojeiro and D. Vergani and A. Zanichelli and S. Arnouts and J. Bel and E. Branchini and O. Ilbert and A. Gargiulo and L. Moscardini and Takeuchi, {T. T.} and G. Zamorani",

note = "R.T. acknowledge financial support from the European Research Council under the European Community{\textquoteright}s Seventh Framework Programme (FP7/2007-2013)/ERC grant agreement n. 202686.",

year = "2017",

month = jan,

doi = "10.1051/0004-6361/201628951",

language = "English",

volume = "597",

journal = "Astronomy & Astrophysics",

issn = "0004-6361",

publisher = "EDP SCIENCES S A",

}

Siudek, M, Małek, K, Scodeggio, M, Garilli, B, Pollo, A, Haines, CP, Fritz, A, Bolzonella, M, de la Torre, S, Granett, BR, Guzzo, L, Abbas, U, Adami, C, Bottini, D, Cappi, A, Cucciati, O, De Lucia, G, Davidzon, I, Franzetti, P, Iovino, A, Krywult, J, Le Brun, V, Le Fèvre, O, Maccagni, D, Marchetti, A, Marulli, F, Polletta, M, Tasca, LAM, Tojeiro, R, Vergani, D, Zanichelli, A, Arnouts, S, Bel, J, Branchini, E, Ilbert, O, Gargiulo, A, Moscardini, L, Takeuchi, TT & Zamorani, G 2017, 'The VIMOS Public Extragalactic Redshift Survey (VIPERS). Star formation history of passive red galaxies', Astronomy & Astrophysics, vol. 597, A107. https://doi.org/10.1051/0004-6361/201628951

TY - JOUR

T1 - The VIMOS Public Extragalactic Redshift Survey (VIPERS). Star formation history of passive red galaxies

AU - Siudek, M.

AU - Małek, K.

AU - Scodeggio, M.

AU - Garilli, B.

AU - Pollo, A.

AU - Haines, C. P.

AU - Fritz, A.

AU - Bolzonella, M.

AU - de la Torre, S.

AU - Granett, B. R.

AU - Guzzo, L.

AU - Abbas, U.

AU - Adami, C.

AU - Bottini, D.

AU - Cappi, A.

AU - Cucciati, O.

AU - De Lucia, G.

AU - Davidzon, I.

AU - Franzetti, P.

AU - Iovino, A.

AU - Krywult, J.

AU - Le Brun, V.

AU - Le Fèvre, O.

AU - Maccagni, D.

AU - Marchetti, A.

AU - Marulli, F.

AU - Polletta, M.

AU - Tasca, L. A. M.

AU - Tojeiro, R.

AU - Vergani, D.

AU - Zanichelli, A.

AU - Arnouts, S.

AU - Bel, J.

AU - Branchini, E.

AU - Ilbert, O.

AU - Gargiulo, A.

AU - Moscardini, L.

AU - Takeuchi, T. T.

AU - Zamorani, G.

N1 - R.T. acknowledge financial support from the European Research Council under the European Community’s Seventh Framework Programme (FP7/2007-2013)/ERC grant agreement n. 202686.

PY - 2017/1

Y1 - 2017/1

N2 - Aims. We trace the evolution and the star formation history of passive red galaxies, using a subset of the VIMOS Public Extragalactic Redshift Survey (VIPERS). The detailed spectral analysis of stellar populations of intermediate-redshift passive red galaxies allows the build up of their stellar content to be followed over the last 8 billion years.Methods. We extracted a sample of passive red galaxies in the redshift range 0.4 Results. We find that at z ~ 1 stellar populations in low-mass passive red galaxies are younger than in high-mass passive red galaxies, similar to what is observed at the present epoch. Over the full analyzed redshift range 0.4 < z < 1.0 and stellar mass range 10 < log (Mstar/M⊙) < 12, the D4000 index increases with redshift, while HδA gets lower. This implies that the stellar populations are getting older with increasing stellar mass. Comparison to the spectra of passive red galaxies in the SDSS survey (z ~ 0.2) shows that the shape of the relations of D4000 and HδA with stellar mass has not changed significantly with redshift. Assuming a single burst formation, this implies that high-mass passive red galaxies formed their stars at zform ~ 1.7, while low-mass galaxies formed their main stellar populations more recently, at zform ~ 1. The consistency of these results, which were obtained using two independent estimators of the formation redshift (D4000 and HδA), further strengthens a scenario in which star formation proceeds from higher to lower mass systems as time passes, i.e., what has become known as the downsizing picture.

AB - Aims. We trace the evolution and the star formation history of passive red galaxies, using a subset of the VIMOS Public Extragalactic Redshift Survey (VIPERS). The detailed spectral analysis of stellar populations of intermediate-redshift passive red galaxies allows the build up of their stellar content to be followed over the last 8 billion years.Methods. We extracted a sample of passive red galaxies in the redshift range 0.4 Results. We find that at z ~ 1 stellar populations in low-mass passive red galaxies are younger than in high-mass passive red galaxies, similar to what is observed at the present epoch. Over the full analyzed redshift range 0.4 < z < 1.0 and stellar mass range 10 < log (Mstar/M⊙) < 12, the D4000 index increases with redshift, while HδA gets lower. This implies that the stellar populations are getting older with increasing stellar mass. Comparison to the spectra of passive red galaxies in the SDSS survey (z ~ 0.2) shows that the shape of the relations of D4000 and HδA with stellar mass has not changed significantly with redshift. Assuming a single burst formation, this implies that high-mass passive red galaxies formed their stars at zform ~ 1.7, while low-mass galaxies formed their main stellar populations more recently, at zform ~ 1. The consistency of these results, which were obtained using two independent estimators of the formation redshift (D4000 and HδA), further strengthens a scenario in which star formation proceeds from higher to lower mass systems as time passes, i.e., what has become known as the downsizing picture.

KW - Galaxies: evolution

KW - Galaxies: stellar content

U2 - 10.1051/0004-6361/201628951

DO - 10.1051/0004-6361/201628951

M3 - Article

SN - 0004-6361

VL - 597

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

M1 - A107

ER -

The VIMOS Public Extragalactic Redshift Survey (VIPERS). Star formation history of passive red galaxies

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Keywords

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