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 functio...
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OXFORD UNIV PRESS
2017
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ndltd-arizona.edu-oai-arizona.openrepository.com-10150-6257372017-10-04T03:00:29Z Stellar-to-halo mass relation of cluster galaxies Niemiec, Anna Jullo, Eric Limousin, Marceau Giocoli, Carlo Erben, Thomas Hildebrant, Hendrik Kneib, Jean-Paul Leauthaud, Alexie Makler, Martin Moraes, Bruno Pereira, Maria E. S. Shan, Huanyuan Rozo, Eduardo Rykoff, Eli Van Waerbeke, Ludovic Univ Arizona, Dept Phys gravitational lensing: weak galaxies: clusters: general 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 Dark Energy Survey (DES) science verification archive, the Canada-France-Hawaii Lensing Survey (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 find a stellar-to-halo mass relation in good agreement with the theoretical expectations from Moster et al. for central galaxies. In the centre of the cluster, we find that this relation is shifted to smaller halo mass for a given stellar mass. We interpret this finding as further evidence for tidal stripping of dark matter haloes in high-density environments. 2017-10 Article Stellar-to-halo mass relation of cluster galaxies 2017, 471 (1):1153 Monthly Notices of the Royal Astronomical Society 0035-8711 1365-2966 10.1093/mnras/stx1667 http://hdl.handle.net/10150/625737 http://arizona.openrepository.com/arizona/handle/10150/625737 Monthly Notices of the Royal Astronomical Society en https://academic.oup.com/mnras/article-lookup/doi/10.1093/mnras/stx1667 © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society OXFORD UNIV PRESS |
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NDLTD |
language |
en |
sources |
NDLTD |
topic |
gravitational lensing: weak galaxies: clusters: general |
spellingShingle |
gravitational lensing: weak galaxies: clusters: general Niemiec, Anna Jullo, Eric Limousin, Marceau Giocoli, Carlo Erben, Thomas Hildebrant, Hendrik Kneib, Jean-Paul Leauthaud, Alexie Makler, Martin Moraes, Bruno Pereira, Maria E. S. Shan, Huanyuan Rozo, Eduardo Rykoff, Eli Van Waerbeke, Ludovic Stellar-to-halo mass relation of cluster galaxies |
description |
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 Dark Energy Survey (DES) science verification archive, the Canada-France-Hawaii Lensing Survey (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 find a stellar-to-halo mass relation in good agreement with the theoretical expectations from Moster et al. for central galaxies. In the centre of the cluster, we find that this relation is shifted to smaller halo mass for a given stellar mass. We interpret this finding as further evidence for tidal stripping of dark matter haloes in high-density environments. |
author2 |
Univ Arizona, Dept Phys |
author_facet |
Univ Arizona, Dept Phys Niemiec, Anna Jullo, Eric Limousin, Marceau Giocoli, Carlo Erben, Thomas Hildebrant, Hendrik Kneib, Jean-Paul Leauthaud, Alexie Makler, Martin Moraes, Bruno Pereira, Maria E. S. Shan, Huanyuan Rozo, Eduardo Rykoff, Eli Van Waerbeke, Ludovic |
author |
Niemiec, Anna Jullo, Eric Limousin, Marceau Giocoli, Carlo Erben, Thomas Hildebrant, Hendrik Kneib, Jean-Paul Leauthaud, Alexie Makler, Martin Moraes, Bruno Pereira, Maria E. S. Shan, Huanyuan Rozo, Eduardo Rykoff, Eli Van Waerbeke, Ludovic |
author_sort |
Niemiec, Anna |
title |
Stellar-to-halo mass relation of cluster galaxies |
title_short |
Stellar-to-halo mass relation of cluster galaxies |
title_full |
Stellar-to-halo mass relation of cluster galaxies |
title_fullStr |
Stellar-to-halo mass relation of cluster galaxies |
title_full_unstemmed |
Stellar-to-halo mass relation of cluster galaxies |
title_sort |
stellar-to-halo mass relation of cluster galaxies |
publisher |
OXFORD UNIV PRESS |
publishDate |
2017 |
url |
http://hdl.handle.net/10150/625737 http://arizona.openrepository.com/arizona/handle/10150/625737 |
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