The VIMOS Public Extragalactic Redshift Survey (VIPERS) Environmental effects shaping the galaxy stellar mass function

被引：65

作者：

Davidzon, I. ^{[1
,2
]}

Cucciati, O. ^{[2
,3
]}

Bolzonella, M. ^{[2
]}

De Lucia, G. ^{[4
]}

Zamorani, G. ^{[2
]}

Arnouts, S. ^{[1
,5
]}

Moutard, T. ^{[1
]}

Ilbert, O. ^{[1
]}

Garilli, B. ^{[6
]}

Scodeggio, M. ^{[6
]}

Guzzo, L. ^{[7
,8
,9
]}

Abbas, U. ^{[10
]}

Adami, C. ^{[1
]}

Bel, J. ^{[7
,8
,11
,12
]}

Bottini, D. ^{[6
]}

Branchini, E. ^{[13
,14
,15
]}

Cappi, A. ^{[2
,16
]}

Coupon, J. ^{[17
]}

de la Torre, S. ^{[1
]}

Di Porto, C. ^{[2
]}

Fritz, A. ^{[6
]}

Franzetti, P. ^{[6
]}

Fumana, M. ^{[6
]}

Granett, B. R. ^{[7
,8
]}

Guennou, L. ^{[1
,18
]}

Iovino, A. ^{[7
,8
]}

Krywult, J. ^{[19
]}

Le Brun, V. ^{[1
]}

Le Fevre, O. ^{[1
]}

Maccagni, D. ^{[6
]}

Malek, K. ^{[20
]}

Marulli, F. ^{[2
,3
,21
]}

McCracken, H. J. ^{[22
]}

Mellier, Y. ^{[22
]}

Moscardini, L. ^{[2
,3
,21
]}

Polletta, M. ^{[6
]}

Pollo, A. ^{[20
,23
]}

Tasca, L. A. M. ^{[1
]}

Tojeiro, R. ^{[24
]}

Vergani, D. ^{[2
,25
]}

Zanichelli, A. ^{[26
]}

机构：

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

[2] INAF Osservatorio Astron Bologna, Via Ranzani 1, I-40127 Bologna, Italy

[3] Univ Bologna, Dipartimento Fis & Astron Alma Mater Studiorum, Viale Berti Pichat 6-2, I-40127 Bologna, Italy

[4] INAF Osservatorio Astron Trieste, Via GB Tiepolo 11, I-34143 Trieste, Italy

[5] Canada France Hawaii Telescope Corp, 65-1238 Mamalahoa Highway, Kamuela, HI 96743 USA

[6] INAF Ist Astrofis Spaziale & Fis Cosm Milano, Via Bassini 15, I-20133 Milan, Italy

[7] INAF Osservatorio Astron Brera, Via Brera 28, I-20122 Milan, Italy

[8] Via E Bianchi 46, I-23807 Merate, Italy

[9] Univ Milano Bicocca, Dipartimento Fis, Piazza Sci 3, I-20126 Milan, Italy

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

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

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

[13] Univ Rome Tre, Dipartimento Matemat & Fis, Via Vasca Navale 84, I-00146 Rome, Italy

[14] Ist Nazl Fis Nucl, Sez Roma Tre, Via Vasca Navale 84, I-00146 Rome, Italy

[15] INAF Osservatorio Astron Roma, Via Frascati 33, I-00040 Monte Porzio Catone, RM, Italy

[16] Univ Nice Sophia Antipolis, Lab Lagrange, Observ Cote Azur, CNRS,UMR 7293, F-06300 Nice, France

[17] Univ Geneva, Astron Observ, Ch Ecogia 16, CH-1290 Versoix, Switzerland

[18] Univ Paris 11, CNRS, UMR 8617, Inst Astrophys Spatiale, F-91405 Orsay, France

[19] Jan Kochanowski Univ, Inst Phys, Ul Swietokrzyska 15, PL-25406 Kielce, Poland

[20] Natl Ctr Nucl Res, Ul Hoza 69, PL-00681 Warsaw, Poland

[21] Ist Nazl Fis Nucl, Sez Bologna, Viale Berti Pichat 6-2, I-40127 Bologna, Italy

[22] Univ Paris 06, Inst Astrophys Paris, CNRS, UMR 7095, 98Bis Blvd Arago, F-75014 Paris, France

[23] Jagiellonian Univ, Astron Observ, Orla 171, PL-30001 Krakow, Poland

[24] Univ Portsmouth, Inst Cosmol & Gravitat, Dennis Sciatna Bldg,Burnaby Rd, Portsmouth PO1 3FX, Hants, England

[25] INAF Ist Astrofis Spaziale & Fis Cosm Bologna, Via Gobetti 101, I-40129 Bologna, Italy

[26] INAF Ist Radioastron, Via Gobetti 101, I-40129 Bologna, Italy

来源：

ASTRONOMY & ASTROPHYSICS | 2016年 / 586卷

基金：

欧洲研究理事会;

关键词：

galaxies: evolution; galaxies: statistics; galaxies: interactions; large-scale structure of Universe; VLT DEEP SURVEY; MORPHOLOGY-DENSITY RELATION; PROBE WMAP OBSERVATIONS; SIMILAR-TO; STAR-FORMATION HISTORIES; DIGITAL-SKY-SURVEY; LUMINOSITY FUNCTION; RED-SEQUENCE; PHOTOMETRIC REDSHIFTS; POPULATION SYNTHESIS;

D O I：

10.1051/0004-6361/201527129

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We exploit the first public data release of VIPERS to investigate environmental effects in the evolution of galaxies between z similar to 0.5 and 0.9. The large number of spectroscopic redshifts (more than 50 000) over an area of about 10 deg(2) provides a galaxy sample with high statistical power. The accurate redshift measurements (sigma(z) = 0.00047(1+ z(spec))) allow us to robustly isolate galaxies living in the lowest and highest density environments (delta < 0.7 and delta > 4, respectively) as defined in terms of spatial 3D density contrast delta. We estimate the stellar mass function of galaxies residing in these two environments and constrain the high-mass end (M greater than or similar to 10(11) M-circle dot) with unprecedented precision. We find that the galaxy stellar mass function in the densest regions has a different shape than was measured at low densities, with an enhancement of massive galaxies and a hint of a flatter (less negative) slope at z < 0.8. We normalise each mass function to the comoving volume occupied by the corresponding environment and relate estimates from different redshift bins. We observe an evolution of the stellar mass function of VIPERS galaxies in high densities, while the low-density one is nearly constant. We compare these results to semi-analytical models and find consistent environmental signatures in the simulated stellar mass functions. We discuss how the halo mass function and fraction of central/satellite galaxies depend on the environments considered, making intrinsic and environmental properties of galaxies physically coupled, hence difficult to disentangle. The evolution of our low-density regions is described well by the formalism introduced by Peng et al. (2010, ApJ, 721, 193), and is consistent with the idea that galaxies become progressively passive because of internal physical processes. The same formalism could also describe the evolution of the mass function in the high density regions, but only if a significant contribution from dry mergers is considered.

引用

页数：21

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