The XMM large-scale structure survey: An initial sample of galaxy groups and clusters to a redshift z < 0.6

J. P. Willis; F. Pacaud; I. Valtchanov; M. Pierre; T. Ponman; A. Read; S. Andreon; B. Altieri; H. Quintana; S. Dos Santos; M. Birkinshaw; M. Bremer; P. A. Duc; G. Galaz; E. Gosset; L. Jones; J. Surdej

doi:10.1111/j.1365-2966.2005.09473.x

The XMM large-scale structure survey: An initial sample of galaxy groups and clusters to a redshift z < 0.6

J. P. Willis^*, F. Pacaud, I. Valtchanov, M. Pierre, T. Ponman, A. Read, S. Andreon, B. Altieri, H. Quintana, S. Dos Santos, M. Birkinshaw, M. Bremer, P. A. Duc, G. Galaz, E. Gosset, L. Jones, J. Surdej

^*Corresponding author for this work

School of Physics

Research output: Contribution to journal › Review article (Academic Journal) › peer-review

63 Citations (Scopus)

Abstract

We present X-ray and optical spectroscopic observations of 12 galaxy groups and clusters identified within the X-ray Multi-Minor (XMM) Large-Scale Structure (LSS) survey. Groups and clusters are selected as extended X-ray sources from a 3.5 deg2 XMM image mosaic above a flux limit 8 × 10 ^-15 erg s^-1 cm^-2 in the [0.5-2] keV energy band. Deep BVRI images and multi-object spectroscopy confirm each source as a galaxy concentration located within the redshift interval 0.29 < z < 0.56. We combine line-of-sight velocity dispersions with the X-ray properties of each structure computed from a two-dimensional surface brightness model and a single temperature fit to the XMM spectral data. The resulting distribution of X-ray luminosity, temperature and velocity dispersion indicate that the XMM-LSS survey is detecting low-mass clusters and galaxy groups to redshifts z < 0.6. Confirmed systems display little or no evidence for X-ray luminosity evolution at a given X-ray temperature compared to lower-redshift X-ray group and cluster samples. A more complete understanding of these trends will be possible with the compilation of a statistically complete sample of galaxy groups and clusters anticipated within the continuing XMM-LSS survey.

Original language	English
Pages (from-to)	675-691
Number of pages	17
Journal	Monthly Notices of the Royal Astronomical Society
Volume	363
Issue number	2
DOIs	https://doi.org/10.1111/j.1365-2966.2005.09473.x
Publication status	Published - 21 Oct 2005

Keywords

Large-scale structure of Universe
Surveys
X-rays: galaxies: clusters

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Willis, J. P., Pacaud, F., Valtchanov, I., Pierre, M., Ponman, T., Read, A., Andreon, S., Altieri, B., Quintana, H., Dos Santos, S., Birkinshaw, M., Bremer, M., Duc, P. A., Galaz, G., Gosset, E., Jones, L., & Surdej, J. (2005). The XMM large-scale structure survey: An initial sample of galaxy groups and clusters to a redshift z < 0.6. Monthly Notices of the Royal Astronomical Society, 363(2), 675-691. https://doi.org/10.1111/j.1365-2966.2005.09473.x

Willis, J. P. ; Pacaud, F. ; Valtchanov, I. ; Pierre, M. ; Ponman, T. ; Read, A. ; Andreon, S. ; Altieri, B. ; Quintana, H. ; Dos Santos, S. ; Birkinshaw, M. ; Bremer, M. ; Duc, P. A. ; Galaz, G. ; Gosset, E. ; Jones, L. ; Surdej, J. / The XMM large-scale structure survey : An initial sample of galaxy groups and clusters to a redshift z < 0.6. In: Monthly Notices of the Royal Astronomical Society. 2005 ; Vol. 363, No. 2. pp. 675-691.

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title = "The XMM large-scale structure survey: An initial sample of galaxy groups and clusters to a redshift z < 0.6",

abstract = "We present X-ray and optical spectroscopic observations of 12 galaxy groups and clusters identified within the X-ray Multi-Minor (XMM) Large-Scale Structure (LSS) survey. Groups and clusters are selected as extended X-ray sources from a 3.5 deg2 XMM image mosaic above a flux limit 8 × 10 -15 erg s-1 cm-2 in the [0.5-2] keV energy band. Deep BVRI images and multi-object spectroscopy confirm each source as a galaxy concentration located within the redshift interval 0.29 < z < 0.56. We combine line-of-sight velocity dispersions with the X-ray properties of each structure computed from a two-dimensional surface brightness model and a single temperature fit to the XMM spectral data. The resulting distribution of X-ray luminosity, temperature and velocity dispersion indicate that the XMM-LSS survey is detecting low-mass clusters and galaxy groups to redshifts z < 0.6. Confirmed systems display little or no evidence for X-ray luminosity evolution at a given X-ray temperature compared to lower-redshift X-ray group and cluster samples. A more complete understanding of these trends will be possible with the compilation of a statistically complete sample of galaxy groups and clusters anticipated within the continuing XMM-LSS survey.",

keywords = "Large-scale structure of Universe, Surveys, X-rays: galaxies: clusters",

author = "Willis, {J. P.} and F. Pacaud and I. Valtchanov and M. Pierre and T. Ponman and A. Read and S. Andreon and B. Altieri and H. Quintana and {Dos Santos}, S. and M. Birkinshaw and M. Bremer and Duc, {P. A.} and G. Galaz and E. Gosset and L. Jones and J. Surdej",

year = "2005",

month = oct,

day = "21",

doi = "10.1111/j.1365-2966.2005.09473.x",

language = "English",

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Willis, JP, Pacaud, F, Valtchanov, I, Pierre, M, Ponman, T, Read, A, Andreon, S, Altieri, B, Quintana, H, Dos Santos, S, Birkinshaw, M , Bremer, M, Duc, PA, Galaz, G, Gosset, E, Jones, L & Surdej, J 2005, 'The XMM large-scale structure survey: An initial sample of galaxy groups and clusters to a redshift z < 0.6', Monthly Notices of the Royal Astronomical Society, vol. 363, no. 2, pp. 675-691. https://doi.org/10.1111/j.1365-2966.2005.09473.x

The XMM large-scale structure survey : An initial sample of galaxy groups and clusters to a redshift z < 0.6. / Willis, J. P.; Pacaud, F.; Valtchanov, I.; Pierre, M.; Ponman, T.; Read, A.; Andreon, S.; Altieri, B.; Quintana, H.; Dos Santos, S.; Birkinshaw, M.; Bremer, M.; Duc, P. A.; Galaz, G.; Gosset, E.; Jones, L.; Surdej, J.

In: Monthly Notices of the Royal Astronomical Society, Vol. 363, No. 2, 21.10.2005, p. 675-691.

Research output: Contribution to journal › Review article (Academic Journal) › peer-review

TY - JOUR

T1 - The XMM large-scale structure survey

T2 - An initial sample of galaxy groups and clusters to a redshift z < 0.6

AU - Willis, J. P.

AU - Pacaud, F.

AU - Valtchanov, I.

AU - Pierre, M.

AU - Ponman, T.

AU - Read, A.

AU - Andreon, S.

AU - Altieri, B.

AU - Quintana, H.

AU - Dos Santos, S.

AU - Birkinshaw, M.

AU - Bremer, M.

AU - Duc, P. A.

AU - Galaz, G.

AU - Gosset, E.

AU - Jones, L.

AU - Surdej, J.

PY - 2005/10/21

Y1 - 2005/10/21

N2 - We present X-ray and optical spectroscopic observations of 12 galaxy groups and clusters identified within the X-ray Multi-Minor (XMM) Large-Scale Structure (LSS) survey. Groups and clusters are selected as extended X-ray sources from a 3.5 deg2 XMM image mosaic above a flux limit 8 × 10 -15 erg s-1 cm-2 in the [0.5-2] keV energy band. Deep BVRI images and multi-object spectroscopy confirm each source as a galaxy concentration located within the redshift interval 0.29 < z < 0.56. We combine line-of-sight velocity dispersions with the X-ray properties of each structure computed from a two-dimensional surface brightness model and a single temperature fit to the XMM spectral data. The resulting distribution of X-ray luminosity, temperature and velocity dispersion indicate that the XMM-LSS survey is detecting low-mass clusters and galaxy groups to redshifts z < 0.6. Confirmed systems display little or no evidence for X-ray luminosity evolution at a given X-ray temperature compared to lower-redshift X-ray group and cluster samples. A more complete understanding of these trends will be possible with the compilation of a statistically complete sample of galaxy groups and clusters anticipated within the continuing XMM-LSS survey.

AB - We present X-ray and optical spectroscopic observations of 12 galaxy groups and clusters identified within the X-ray Multi-Minor (XMM) Large-Scale Structure (LSS) survey. Groups and clusters are selected as extended X-ray sources from a 3.5 deg2 XMM image mosaic above a flux limit 8 × 10 -15 erg s-1 cm-2 in the [0.5-2] keV energy band. Deep BVRI images and multi-object spectroscopy confirm each source as a galaxy concentration located within the redshift interval 0.29 < z < 0.56. We combine line-of-sight velocity dispersions with the X-ray properties of each structure computed from a two-dimensional surface brightness model and a single temperature fit to the XMM spectral data. The resulting distribution of X-ray luminosity, temperature and velocity dispersion indicate that the XMM-LSS survey is detecting low-mass clusters and galaxy groups to redshifts z < 0.6. Confirmed systems display little or no evidence for X-ray luminosity evolution at a given X-ray temperature compared to lower-redshift X-ray group and cluster samples. A more complete understanding of these trends will be possible with the compilation of a statistically complete sample of galaxy groups and clusters anticipated within the continuing XMM-LSS survey.

KW - Large-scale structure of Universe

KW - Surveys

KW - X-rays: galaxies: clusters

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U2 - 10.1111/j.1365-2966.2005.09473.x

DO - 10.1111/j.1365-2966.2005.09473.x

M3 - Review article (Academic Journal)

AN - SCOPUS:27144502074

VL - 363

SP - 675

EP - 691

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 2

ER -

The XMM large-scale structure survey: An initial sample of galaxy groups and clusters to a redshift z < 0.6

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