The VIMOS Public Extragalactic Redshift Survey (VIPERS): Environment-size relation of massive passive galaxies at 0.5 ≤ z ≤ 0.8 - Archive ouverte HAL Access content directly
Journal Articles Astronomy and Astrophysics - A&A Year : 2019

The VIMOS Public Extragalactic Redshift Survey (VIPERS): Environment-size relation of massive passive galaxies at 0.5 ≤ z ≤ 0.8

A. Gargiulo
  • Function : Author
O. Cucciati
B. Garilli
M. Scodeggio
  • Function : Author
M. Bolzonella
  • Function : Author
G. Zamorani
G. de Lucia
J. Krywult
  • Function : Author
L. Guzzo
  • Function : Author
B. Granett
S. de La Torre
U. Abbas
  • Function : Author
D. Bottini
  • Function : Author
P. Franzetti
  • Function : Author
A. Fritz
  • Function : Author
C. Haines
  • Function : Author
A. Hawken
  • Function : Author
A. Iovino
  • Function : Author
D. Maccagni
  • Function : Author
K. Małek
  • Function : Author
F. Marulli
A. Pollo
  • Function : Author
R. Tojeiro
  • Function : Author
D. Vergani
  • Function : Author
A. Zanichelli
  • Function : Author
E. Branchini
J. Coupon
  • Function : Author
L. Moscardini
  • Function : Author
J. Peacock
  • Function : Author

Abstract

We use the statistics of the VIPERS survey to investigate the relation between the surface mean stellar mass density Sigma=Mstar/(2*pi*Re^2) of massive passive galaxies (MPGs, Mstar>10^11 Msun) and their environment in the redshift range 0.52*10^11 Msun, we find an excess of MPGs with low Sigma and a deficit of high-Sigma MPGs in the densest regions wrt other environments. We interpret this result as due to the migration of some high-Sigma MPGs (<1% of the total population of MPGs) into low-Sigma 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 Sigma-delta relation of MSFGs at z>0.8 and find that it is consistent within 1 sigma with that of low-Sigma 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-Sigma MPGs at z<0.8.
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Dates and versions

hal-02448375 , version 1 (26-06-2022)

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A. Gargiulo, O. Cucciati, B. Garilli, M. Scodeggio, M. Bolzonella, et al.. The VIMOS Public Extragalactic Redshift Survey (VIPERS): Environment-size relation of massive passive galaxies at 0.5 ≤ z ≤ 0.8. Astronomy and Astrophysics - A&A, 2019, 631, pp.A15. ⟨10.1051/0004-6361/201833600⟩. ⟨hal-02448375⟩
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