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Title: Stellar-to-halo mass relation of cluster galaxies

In the formation of galaxy groups and clusters, the dark matter haloes containing satellite galaxies are expected to be tidally stripped in gravitational interactions with the host. We use galaxy-galaxy weak lensing to measure the average mass of dark matter haloes of satellite galaxies as a function of projected distance to the centre of the host, since stripping is expected to be greater for satellites closer to the centre of the cluster. We further classify the satellites according to their stellar mass: assuming that the stellar component of the galaxy is less disrupted by tidal stripping, stellar mass can be used as a proxy of the infall mass. We study the stellar to halo mass relation of satellites as a function of the cluster-centric distance to measure tidal stripping. We use the shear catalogues of the DES science veri cation archive, the CFHTLenS and the CFHT Stripe 82 surveys, and we select satellites from the redMaPPer catalogue of clusters. For galaxies located in the outskirts of clusters, we nd a stellar to halo mass relation in good agreement with the theoretical expectations from Moster, Naab & White (2013) for central galaxies. In the centre of the cluster, we nd thatmore » this relation is shifted to smaller halo mass for a given stellar mass. We interpret this nding as further evidence for tidal stripping of dark matter haloes in high density environments.« less
Authors:
 [1] ;  [1] ;  [1] ; ORCiD logo [2] ;  [3] ;  [3] ;  [4] ;  [5] ;  [6] ;  [7] ;  [6] ;  [8] ;  [9] ;  [10] ;  [11]
  1. Aix-Marseille Univ., and CNRS/IN2P3, Marseille (France)
  2. Aix-Marseille Univ., and CNRS/IN2P3, Marseille (France); Alma Mater Studorium Univ. di Bologna (Italy)
  3. Argelander Inst. for Astronomy, Bonn (Germany)
  4. Ecole Polytechnique Federale Lausanne (Switzlerland)
  5. Univ. of California, Santa Cruz, CA (United States)
  6. Ministerio da Ciencia, Tecnologia e Inovacao (MCTI), Rio de Janiero (Brazil). Centro Brasileiro de Pesquisas Fisicas (CBPF)
  7. Univ. College London (United Kingdom)
  8. Argelander Inst. for Astronomy, Bonn (Germany); Ecole Polytechnique Federale Lausanne (Switzlerland)
  9. Univ. of Arizona, Tucson, AZ (United States)
  10. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  11. Univ. of British Columbia, Vancouver, BC (Canada)
Publication Date:
Grant/Contract Number:
AC02-76SF00515; Hi 1495/2-1
Type:
Accepted Manuscript
Journal Name:
Monthly Notices of the Royal Astronomical Society
Additional Journal Information:
Journal Volume: 471; Journal Issue: 1; Journal ID: ISSN 0035-8711
Publisher:
Royal Astronomical Society
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS
OSTI Identifier:
1390599