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The XMM cluster survey: The build-up of stellar mass in brightest cluster galaxies at high redshift

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The XMM cluster survey : The build-up of stellar mass in brightest cluster galaxies at high redshift. / Stott, J. P.; Collins, C. A.; Sahlén, M.; Hilton, M.; Lloyd-Davies, E.; Capozzi, D.; Hosmer, M.; Liddle, A. R.; Mehrtens, N.; Miller, C. J.; Romer, A. K.; Stanford, S. A.; Viana, P. T P; Davidson, M.; Hoyle, B.; Kay, S. T.; Nichol, R. C.

In: The Astrophysical Journal, Vol. 718, No. 1, 20.07.2010, p. 23-30.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Stott, JP, Collins, CA, Sahlén, M, Hilton, M, Lloyd-Davies, E, Capozzi, D, Hosmer, M, Liddle, AR, Mehrtens, N, Miller, CJ, Romer, AK, Stanford, SA, Viana, PTP, Davidson, M, Hoyle, B, Kay, ST & Nichol, RC 2010, 'The XMM cluster survey: The build-up of stellar mass in brightest cluster galaxies at high redshift', The Astrophysical Journal, vol. 718, no. 1, pp. 23-30. https://doi.org/10.1088/0004-637X/718/1/23

APA

Stott, J. P., Collins, C. A., Sahlén, M., Hilton, M., Lloyd-Davies, E., Capozzi, D., Hosmer, M., Liddle, A. R., Mehrtens, N., Miller, C. J., Romer, A. K., Stanford, S. A., Viana, P. T. P., Davidson, M., Hoyle, B., Kay, S. T., & Nichol, R. C. (2010). The XMM cluster survey: The build-up of stellar mass in brightest cluster galaxies at high redshift. The Astrophysical Journal, 718(1), 23-30. https://doi.org/10.1088/0004-637X/718/1/23

Vancouver

Stott JP, Collins CA, Sahlén M, Hilton M, Lloyd-Davies E, Capozzi D et al. The XMM cluster survey: The build-up of stellar mass in brightest cluster galaxies at high redshift. The Astrophysical Journal. 2010 Jul 20;718(1):23-30. https://doi.org/10.1088/0004-637X/718/1/23

Author

Stott, J. P. ; Collins, C. A. ; Sahlén, M. ; Hilton, M. ; Lloyd-Davies, E. ; Capozzi, D. ; Hosmer, M. ; Liddle, A. R. ; Mehrtens, N. ; Miller, C. J. ; Romer, A. K. ; Stanford, S. A. ; Viana, P. T P ; Davidson, M. ; Hoyle, B. ; Kay, S. T. ; Nichol, R. C. / The XMM cluster survey : The build-up of stellar mass in brightest cluster galaxies at high redshift. In: The Astrophysical Journal. 2010 ; Vol. 718, No. 1. pp. 23-30.

Bibtex

@article{055cc1783b0a45dcb2e2e0f5c000b8f9,
title = "The XMM cluster survey: The build-up of stellar mass in brightest cluster galaxies at high redshift",
abstract = "We present deep J- and Ks-band photometry of 20 high redshift galaxy clusters between z = 0.8 and 1.5, 19 of which are observed with the MOIRCS instrument on the Subaru telescope. By using near-infrared light as a proxy for stellar mass we find the surprising result that the average stellar mass of Brightest Cluster Galaxies (BCGs) has remained constant at ∼9 × 1011 M⊙ since z ∼ 1.5. We investigate the effect on this result of differing star formation histories generated by three well-known and independent stellar population codes and find it to be robust for reasonable, physically motivated choices of age and metallicity. By performing Monte Carlo simulations we find that the result is unaffected by any correlation between BCG mass and cluster mass in either the observed or model clusters. The large stellar masses imply that the assemblage of these galaxies took place at the same time as the initial burst of star formation. This result leads us to conclude that dry merging has had little effect on the average stellar mass of BCGs over the last 9-10 Gyr in stark contrast to the predictions of semi-analytic models, based on the hierarchical merging of dark matter halos, which predict a more protracted mass build-up over a Hubble time. However, we discuss that there is potential for reconciliation between observation and theory if there is a significant growth of material in the intracluster light over the same period.",
keywords = "CD, Galaxies: clusters: general, Galaxies: elliptical and lenticular, Galaxies: evolution",
author = "Stott, {J. P.} and Collins, {C. A.} and M. Sahl{\'e}n and M. Hilton and E. Lloyd-Davies and D. Capozzi and M. Hosmer and Liddle, {A. R.} and N. Mehrtens and Miller, {C. J.} and Romer, {A. K.} and Stanford, {S. A.} and Viana, {P. T P} and M. Davidson and B. Hoyle and Kay, {S. T.} and Nichol, {R. C.}",
year = "2010",
month = jul,
day = "20",
doi = "10.1088/0004-637X/718/1/23",
language = "English",
volume = "718",
pages = "23--30",
journal = "The Astrophysical Journal",
issn = "0004-637X",
publisher = "Institute of Physics Publishing",
number = "1",

}

RIS

TY - JOUR

T1 - The XMM cluster survey

T2 - The build-up of stellar mass in brightest cluster galaxies at high redshift

AU - Stott, J. P.

AU - Collins, C. A.

AU - Sahlén, M.

AU - Hilton, M.

AU - Lloyd-Davies, E.

AU - Capozzi, D.

AU - Hosmer, M.

AU - Liddle, A. R.

AU - Mehrtens, N.

AU - Miller, C. J.

AU - Romer, A. K.

AU - Stanford, S. A.

AU - Viana, P. T P

AU - Davidson, M.

AU - Hoyle, B.

AU - Kay, S. T.

AU - Nichol, R. C.

PY - 2010/7/20

Y1 - 2010/7/20

N2 - We present deep J- and Ks-band photometry of 20 high redshift galaxy clusters between z = 0.8 and 1.5, 19 of which are observed with the MOIRCS instrument on the Subaru telescope. By using near-infrared light as a proxy for stellar mass we find the surprising result that the average stellar mass of Brightest Cluster Galaxies (BCGs) has remained constant at ∼9 × 1011 M⊙ since z ∼ 1.5. We investigate the effect on this result of differing star formation histories generated by three well-known and independent stellar population codes and find it to be robust for reasonable, physically motivated choices of age and metallicity. By performing Monte Carlo simulations we find that the result is unaffected by any correlation between BCG mass and cluster mass in either the observed or model clusters. The large stellar masses imply that the assemblage of these galaxies took place at the same time as the initial burst of star formation. This result leads us to conclude that dry merging has had little effect on the average stellar mass of BCGs over the last 9-10 Gyr in stark contrast to the predictions of semi-analytic models, based on the hierarchical merging of dark matter halos, which predict a more protracted mass build-up over a Hubble time. However, we discuss that there is potential for reconciliation between observation and theory if there is a significant growth of material in the intracluster light over the same period.

AB - We present deep J- and Ks-band photometry of 20 high redshift galaxy clusters between z = 0.8 and 1.5, 19 of which are observed with the MOIRCS instrument on the Subaru telescope. By using near-infrared light as a proxy for stellar mass we find the surprising result that the average stellar mass of Brightest Cluster Galaxies (BCGs) has remained constant at ∼9 × 1011 M⊙ since z ∼ 1.5. We investigate the effect on this result of differing star formation histories generated by three well-known and independent stellar population codes and find it to be robust for reasonable, physically motivated choices of age and metallicity. By performing Monte Carlo simulations we find that the result is unaffected by any correlation between BCG mass and cluster mass in either the observed or model clusters. The large stellar masses imply that the assemblage of these galaxies took place at the same time as the initial burst of star formation. This result leads us to conclude that dry merging has had little effect on the average stellar mass of BCGs over the last 9-10 Gyr in stark contrast to the predictions of semi-analytic models, based on the hierarchical merging of dark matter halos, which predict a more protracted mass build-up over a Hubble time. However, we discuss that there is potential for reconciliation between observation and theory if there is a significant growth of material in the intracluster light over the same period.

KW - CD

KW - Galaxies: clusters: general

KW - Galaxies: elliptical and lenticular

KW - Galaxies: evolution

U2 - 10.1088/0004-637X/718/1/23

DO - 10.1088/0004-637X/718/1/23

M3 - Journal article

AN - SCOPUS:78149393825

VL - 718

SP - 23

EP - 30

JO - The Astrophysical Journal

JF - The Astrophysical Journal

SN - 0004-637X

IS - 1

ER -