VIPERS view of the star formation history of early-type galaxies

被引：0

作者：

Siudek, M. ^{[1
]}

Malek, K. ^{[2
]}

Garilli, B. ^{[3
,4
]}

Scodeggio, M. ^{[3
]}

Fritz, A. ^{[3
]}

Pollo, A. ^{[2
,5
]}

Abbas, U. ^{[6
]}

Adami, C. ^{[4
]}

Arnouts, S. ^{[7
]}

Bel, J. ^{[8
]}

Bolzonella, M. ^{[9
]}

Bottini, D. ^{[3
]}

Branchini, E. ^{[10
,11
,12
]}

Cappi, A. ^{[9
,13
]}

Coupon, J. ^{[14
]}

Cucciati, O. ^{[9
,15
]}

Davidzon, I. ^{[4
,9
]}

De Lucia, G. ^{[16
]}

de la Torre, S. ^{[4
]}

Franzetti, P. ^{[3
]}

Fumana, M. ^{[3
]}

Granett, B. R. ^{[8
]}

Guzzo, L. ^{[8
,17
]}

Ilbert, O. ^{[4
]}

Iovino, A. ^{[8
]}

Krywult, J. ^{[18
]}

Le Brun, V. ^{[4
]}

Le Fevre, O. ^{[4
]}

Maccagni, D. ^{[3
]}

Marulli, F. ^{[9
,15
,19
]}

McCracken, H. J. ^{[20
]}

Paioro, L. ^{[3
]}

Polletta, M. ^{[3
]}

Schlagenhaufer, H. ^{[21
,22
]}

Tasca, L. A. M. ^{[4
]}

Tojeiro, R. ^{[23
]}

Vergani, D. ^{[9
,24
]}

Zanichelli, A. ^{[25
]}

Burden, A. ^{[23
]}

Di Porto, C. ^{[9
]}

Marchetti, A. ^{[8
,26
]}

Marinoni, C. ^{[27
,28
]}

Mellier, Y. ^{[20
]}

Moscardini, L. ^{[9
,15
,19
]}

Nichol, R. C. ^{[23
]}

Peacock, J. A. ^{[29
]}

Percival, W. J. ^{[23
]}

Phleps, S. ^{[22
]}

Wolk, M. ^{[20
]}

Zamorani, G. ^{[9
]}

机构：

[1] Ctr Theoret Phys, PL-02668 Warsaw, Poland

[2] Natl Ctr Nucl Res, PL-05400 Otwock, Poland

[3] INAF Ist Astrofis Spaziale & Fis Cosm Milano, I-20133 Milan, Italy

[4] Aix Marseille Univ, CNRS, LAM, UMR 7326, F-13388 Marseille, France

[5] Jagiellonian Univ, Astron Observ, PL-30001 Krakow, Poland

[6] INAF Osservatorio Astron Torino, I-10025 Pino Torinese, Italy

[7] Canada France Hawaii Telescope, Kamuela, HI 96743 USA

[8] INAF Osservatorio Astron Brera, I-20122 Milan, Italy

[9] INAF Osservatorio Astron Bologna, I-40127 Bologna, Italy

[10] Univ Roma Tre, Dipartimento Matemat & Fis, I-00146 Rome, Italy

[11] INFN, Sez Roma Tre, I-00146 Rome, Italy

[12] INAF Osservatorio Astron Roma, I-00040 Monte Porzio Catone, RM, Italy

[13] Univ Nice Sophia Antipolis, CNRS, Observ Cote Azur, Lab Lagrange,UMR7293, F-06300 Nice, France

[14] Univ Geneva, Astron Observ, CH-1290 Versoix, Switzerland

[15] Alma Mater Studiorum Univ Bologna, Dipartimento Fis & Astron, I-40127 Bologna, Italy

[16] INAF Osservatorio Astron Trieste, I-34143 Trieste, Italy

[17] Univ Milano Bicocca, Dipartimento Fis, I-20126 Milan, Italy

[18] Jan Kochanowski Univ, Inst Phys, PL-25406 Kielce, Poland

[19] INFN, Sez Bologna, I-40127 Bologna, Italy

[20] Univ Paris 06, CNRS UMR7095, Inst Astrophys Paris, F-75014 Paris, France

[21] Univ Munich, Univ Sternwarte Munchen, D-81679 Munich, Germany

[22] Max Planck Inst Extraterr Phys, D-84571 Munich, Germany

[23] Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 3FX, Hants, England

[24] INAF Ist Astrofis Spaziale & Fis Cosm Bologna, I-40129 Bologna, Italy

[25] INAF Ist Radioastron, I-40129 Bologna, Italy

[26] Univ Milan, I-20130 Milan, Italy

[27] Aix Marseille Univ, CNRS, CPT, UMR 7332, F-13288 Marseille, France

[28] Univ Toulon & Var, CNRS, CPT, UMR 7332, F-83957 La Garde, France

[29] Univ Edinburgh, Royal Observ, Inst Astron, SUPA, Edinburgh EH9 3HJ, Midlothian, Scotland

来源：

PHOTONICS APPLICATIONS IN ASTRONOMY, COMMUNICATIONS, INDUSTRY, AND HIGH-ENERGY PHYSICS EXPERIMENTS 2015 | 2015年 / 9662卷

关键词：

galaxies:formation; evolution; galaxies: stellar content; REDSHIFT SURVEY VIPERS; RED-SEQUENCE GALAXIES; STELLAR MASS FUNCTION; SPECTROSCOPIC SAMPLE; FORMING GALAXIES; DATA RELEASE; EVOLUTION; BIMODALITY; ZCOSMOS; CLASSIFICATION;

D O I：

10.1117/12.2202710

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate redshift evolution of the relation between stellar mass, and star formation history for a high quality sample of early-type galaxies (ETGs) observed by the VIMOS Public Extragalactic Redshift Survey (VIPERS). Among nearly 100,000 VIPERS targets more than 22% are ETGs, which makes it a perfect sample to study the star, formation history based on galaxy spectroscopic features. We use two stellar absorption line indices, the 4000 angstrom break strength, and the Balmer absorption line index H delta(A) as the indicators of the present and past star formation in galaxies, and measure their dependence of the stellar mass. We find that the age of stellar population changes both with stellar mass and redshift. Lower mass ETGs have younger stellar populations than galaxies with higher mass. This trend is preserved in all the redshift range 0.4 < z < 1.2 and it is similar to the trends observed in the local Universe. For all stellar mass ranges D-4000 increases with redshift, while H delta(A) gets lower, which can be interpreted as the confirmation of the "downsizing" scenario.

引用

页数：15

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