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The evolution in the stellar mass of brightest cluster galaxies over the past 10 billion years

Journal Article


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Abstract


  • Using a sample of 98 galaxy clusters recently imaged in the near-infrared with the European

    Southern Observatory (ESO) New Technology Telescope, WIYN telescope and William Her-

    schel Telescope, supplemented with 33 clusters from the ESO archive, we measure how the

    stellar mass of the most massive galaxies in the universe, namely brightest cluster galaxies

    (BCGs), increases with time. Most of the BCGs in this new sample lie in the redshift range

    0.2

    in the stellar mass of BCGs stalls. From this sample of 132 clusters, we create a subsample

    of 102 systems that includes only those clusters that have estimates of the cluster mass. We

    combine the BCGs in this subsample with BCGs from the literature, and find that the growth in

    stellar mass of BCGs from 10 billion years ago to the present epoch is broadly consistent with

    recent semi-analytic and semi-empirical models. As in other recent studies, tentative evidence

    indicates that the stellar mass growth rate of BCGs may be slowing in the past 3.5 billion

    years. Further work in collecting larger samples, and in better comparing observations with

    theory using mock images, is required if a more detailed comparison between the models and

    the data is to be made

Authors


  •   Bellstedt, Sabine (external author)
  •   Lidman, Chris E.
  •   Muzzin, Adam (external author)
  •   Franx, Marijn (external author)
  •   Guatelli, Susanna
  •   Hill, Allison R. (external author)
  •   Hoekstra, Henk (external author)
  •   Kurinsky, Noah (external author)
  •   Labbe, Ivo (external author)
  •   Marchesini, Danilo (external author)
  •   Marsan, Z. Cemile (external author)
  •   Safavi-Naeini, Mitra (external author)
  •   Sifon, Cristobal (external author)
  •   Stefanon, Mauro (external author)
  •   van de Sande, Jesse (external author)
  •   van Dokkum, Pieter (external author)
  •   Weigel, Catherine (external author)

Publication Date


  • 2016

Citation


  • Bellstedt, S., Lidman, C., Muzzin, A., Franx, M., Guatelli, S., Hill, A. R., Hoekstra, H., Kurinsky, N., Labbe, I., Marchesini, D., Marsan, Z. Cemile., Safavi-Naeini, M., Sifon, C., Stefanon, M., Van De Sande, J., Van Dokkum, P. & Weigel, C. (2016). The evolution in the stellar mass of brightest cluster galaxies over the past 10 billion years. Monthly Notices of the Royal Astronomical Society, 460 (3), 2862-2874.

Scopus Eid


  • 2-s2.0-84983356774

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=6947&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5918

Number Of Pages


  • 12

Start Page


  • 2862

End Page


  • 2874

Volume


  • 460

Issue


  • 3

Abstract


  • Using a sample of 98 galaxy clusters recently imaged in the near-infrared with the European

    Southern Observatory (ESO) New Technology Telescope, WIYN telescope and William Her-

    schel Telescope, supplemented with 33 clusters from the ESO archive, we measure how the

    stellar mass of the most massive galaxies in the universe, namely brightest cluster galaxies

    (BCGs), increases with time. Most of the BCGs in this new sample lie in the redshift range

    0.2

    in the stellar mass of BCGs stalls. From this sample of 132 clusters, we create a subsample

    of 102 systems that includes only those clusters that have estimates of the cluster mass. We

    combine the BCGs in this subsample with BCGs from the literature, and find that the growth in

    stellar mass of BCGs from 10 billion years ago to the present epoch is broadly consistent with

    recent semi-analytic and semi-empirical models. As in other recent studies, tentative evidence

    indicates that the stellar mass growth rate of BCGs may be slowing in the past 3.5 billion

    years. Further work in collecting larger samples, and in better comparing observations with

    theory using mock images, is required if a more detailed comparison between the models and

    the data is to be made

Authors


  •   Bellstedt, Sabine (external author)
  •   Lidman, Chris E.
  •   Muzzin, Adam (external author)
  •   Franx, Marijn (external author)
  •   Guatelli, Susanna
  •   Hill, Allison R. (external author)
  •   Hoekstra, Henk (external author)
  •   Kurinsky, Noah (external author)
  •   Labbe, Ivo (external author)
  •   Marchesini, Danilo (external author)
  •   Marsan, Z. Cemile (external author)
  •   Safavi-Naeini, Mitra (external author)
  •   Sifon, Cristobal (external author)
  •   Stefanon, Mauro (external author)
  •   van de Sande, Jesse (external author)
  •   van Dokkum, Pieter (external author)
  •   Weigel, Catherine (external author)

Publication Date


  • 2016

Citation


  • Bellstedt, S., Lidman, C., Muzzin, A., Franx, M., Guatelli, S., Hill, A. R., Hoekstra, H., Kurinsky, N., Labbe, I., Marchesini, D., Marsan, Z. Cemile., Safavi-Naeini, M., Sifon, C., Stefanon, M., Van De Sande, J., Van Dokkum, P. & Weigel, C. (2016). The evolution in the stellar mass of brightest cluster galaxies over the past 10 billion years. Monthly Notices of the Royal Astronomical Society, 460 (3), 2862-2874.

Scopus Eid


  • 2-s2.0-84983356774

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=6947&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5918

Number Of Pages


  • 12

Start Page


  • 2862

End Page


  • 2874

Volume


  • 460

Issue


  • 3