The VIMOS Public Extragalactic Redshift Survey (VIPERS)

Moresco, M.; Rota, S.; Solarz, A.; Bianchi, D.; Krakowski, T.; Giocoli, C.; Jullo, E.; Pezzotta, A.; Wilson, M. J.; Steigerwald, H.; de la Torre, S.; Guzzo, L.; Haines, C. P.; Granett, B. R.; Bel, J.; Abbas, U.; Bolzonella, M.; Cappi, A.; Adami, C.; Davidzon, I.; Garilli, B.; Siudek, M.; Bottini, D.; Scodeggio, M.; Hudelot, P.; Cucciati, O.; Fritz, A.; Carbone, C.; Marulli, F.; Franzetti, P.; Guennou, L.; Branchini, E.; Zamorani, G.; Iovino, A.; Fumana, M.; Arnouts, S.; Krywult, J.; Le Brun, V.; Maccagni, D.; Hawken, A. J.; Le Fèvre, O.; Coupon, J.; Mohammad, F. G.; Blaizot, J.; Paioro, L.; Małek, K.; De Lucia, G.; Martizzi, D.; Schlagenhaufer, H.; Moscardini, L.; Ilbert, O.; Polletta, M.; McCracken, H. J.; Pollo, A.; Marinoni, C.; Tasca, L. A. M.; Tojeiro, R.; Schimd, C.; Burden, A.; Vergani, D.; Gargiulo, A.; Peacock, J. A.; Moutard, T.; Marchetti, A.; Zanichelli, A.; Di Porto, C.; Percival, W. J.; Koda, J.; Mellier, Y.; Monaco, P.; Viel, M.; Nichol, R. C.; Metcalf, R. B.; Phleps, S.; Prada, F.; Takeuchi, T. T.; Wolk, M.; Yepes, G.

Published in

Astronomy & Astrophysics, (586), p. A23

DOI: 10.1051/0004-6361/201527129

Astronomy & Astrophysics, (608), p. A44, 2017

DOI: 10.1051/0004-6361/201630276

Astronomy & Astrophysics, (601), p. A144, 2017

DOI: 10.1051/0004-6361/201630116

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The VIMOS Public Extragalactic Redshift Survey (VIPERS)

Journal article published in 2013 by M. Moresco, S. Rota, A. Solarz, D. Bianchi, T. Krakowski, C. Giocoli, E. Jullo, A. Pezzotta, M. J. Wilson, H. Steigerwald, S. de la Torre, L. Guzzo

, C. P. Haines

, B. R. Granett, J. Bel and other authors.

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Abstract

We use the unparalleled statistics of the VIPERS survey to investigate the relation between the surface mean stellar mass density Σ = ℳ/ (2 πR_e²) of massive passive galaxies (MPGs, ℳ ≥ 10¹¹ M_⊙) and their local environment in the redshift range 0.5 ≤ z ≤ 0.8. Passive galaxies were selected on the basis of their NUVrK colors (∼900 objects), and the environment was defined as the galaxy density contrast, δ, using the fifth nearest-neighbor approach. The analysis of Σ versus δ was carried out in two stellar mass bins. In galaxies with ℳ ≤ 2 × 10¹¹ M_⊙, no correlation between Σ and δ is observed. This implies that the accretion of satellite galaxies, which is more frequent in denser environments (groups or cluster outskirts) and efficient in reducing the galaxy Σ, is not relevant in the formation and evolution of these systems. Conversely, in galaxies with ℳ > 2 × 10¹¹ M_⊙, we find an excess of MPGs with low Σ and a deficit of high-Σ MPGs in the densest regions with respect to other environments. We interpret this result as due to the migration of some high-Σ MPGs (< 1% of the total population of MPGs) into low-Σ MPGs, probably through mergers or cannibalism of small satellites. In summary, our results imply that the accretion of satellite galaxies has a marginal role in the mass-assembly history of most MPGs. We have previously found that the number density of VIPERS massive star-forming galaxies (MSFGs) declines rapidily from z = 0.8 to z = 0.5, which mirrors the rapid increase in the number density of MPGs. This indicates that the MSFGs at z ≥ 0.8 migrate to the MPG population. Here, we investigate the Σ–δ relation of MSFGs at z ≥ 0.8 and find that it is consistent within 1σ with that of low-Σ MPGs at z ≤ 0.8. Thus, the results of this and our previous paper show that MSFGs at z ≥ 0.8 are consistent in terms of number and environment with being the progenitors of low-Σ MPGs at z < 0.8.

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The VIMOS Public Extragalactic Redshift Survey (VIPERS)

Abstract