The XMM Large-Scale Structure survey: an initial sample of galaxy groups and clusters to a redshift z<0.6

JP Willis; F Pacaud; I Valtchanov; M Pierre; Trevor Ponman; A Read; S Andreon; B Altieri; H Quintana; S Dos Santos; M Birkinshaw; M Bremer; PA Duc; G Galaz; E Gosset; Laurence 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

JP Willis, F Pacaud, I Valtchanov, M Pierre, Trevor Ponman, A Read, S Andreon, B Altieri, H Quintana, S Dos Santos, M Birkinshaw, M Bremer, PA Duc, G Galaz, E Gosset, Laurence Jones, J Surdej

Physics and Astronomy

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Abstract

We present X-ray and optical spectroscopic observations of 12 galaxy groups and clusters identified within the X-ray Multi-Mirror (XMM) Large-Scale Structure (LSS) survey. Groups and clusters are selected as extended X-ray sources from a 3.5 deg(2) XMM image mosaic above a flux limit 8 x 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	Royal Astronomical Society. Monthly Notices
Volume	363
Issue number	2
Early online date	7 Sept 2005
DOIs	https://doi.org/10.1111/j.1365-2966.2005.09473.x
Publication status	Published - 7 Sept 2005

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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. Royal Astronomical Society. Monthly Notices , 363(2), 675-691. https://doi.org/10.1111/j.1365-2966.2005.09473.x

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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-Mirror (XMM) Large-Scale Structure (LSS) survey. Groups and clusters are selected as extended X-ray sources from a 3.5 deg(2) XMM image mosaic above a flux limit 8 x 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.",

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

year = "2005",

month = sep,

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

language = "English",

volume = "363",

pages = "675--691",

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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', Royal Astronomical Society. Monthly Notices , vol. 363, no. 2, pp. 675-691. https://doi.org/10.1111/j.1365-2966.2005.09473.x

TY - JOUR

T1 - The XMM Large-Scale Structure survey: an initial sample of galaxy groups and clusters to a redshift z<0.6

AU - Willis, JP

AU - Pacaud, F

AU - Valtchanov, I

AU - Pierre, M

AU - Ponman, Trevor

AU - Read, A

AU - Andreon, S

AU - Altieri, B

AU - Quintana, H

AU - Dos Santos, S

AU - Birkinshaw, M

AU - Bremer, M

AU - Duc, PA

AU - Galaz, G

AU - Gosset, E

AU - Jones, Laurence

AU - Surdej, J

PY - 2005/9/7

Y1 - 2005/9/7

N2 - We present X-ray and optical spectroscopic observations of 12 galaxy groups and clusters identified within the X-ray Multi-Mirror (XMM) Large-Scale Structure (LSS) survey. Groups and clusters are selected as extended X-ray sources from a 3.5 deg(2) XMM image mosaic above a flux limit 8 x 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-Mirror (XMM) Large-Scale Structure (LSS) survey. Groups and clusters are selected as extended X-ray sources from a 3.5 deg(2) XMM image mosaic above a flux limit 8 x 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.

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U2 - 10.1111/j.1365-2966.2005.09473.x

DO - 10.1111/j.1365-2966.2005.09473.x

M3 - Article

SN - 0035-8711

VL - 363

SP - 675

EP - 691

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

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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