J/MNRAS/424/2086 LX-T relation in galaxy clusters (Hilton+, 2012)
The XMM cluster survey: evidence for energy injection at high redshift from
evolution of the X-ray luminosity-temperature relation.
Hilton M., Romer A.K., Kay S.T., Mehrtens N., Lloyd-Davies E.J.,
Thomas P.A., Short C.J., Mayers J.A., Rooney P.J., Stott J.P.,
Collins C.A., Harrison C.D., Hoyle B., Liddle A.R., Mann R.G., Miller C.J.,
Sahlen M., Viana P.T.P., Davidson M., Hosmer M., Nichol R.C., Sabirli K.,
Stanford S.A., West M.J.
<Mon. Not. R. Astron. Soc., 424, 2086-2096 (2012)>
=2012MNRAS.424.2086H 2012MNRAS.424.2086H
ADC_Keywords: Clusters, galaxy ; X-ray sources ; Redshifts
Keywords: galaxies: clusters: general -
galaxies: clusters: intracluster medium - galaxies: high-redshift -
cosmology: observations - X-rays: galaxies: clusters
Abstract:
We measure the evolution of the X-ray luminosity-temperature
(LX-T) relation since z∼1.5 using a sample of 211 serendipitously
detected galaxy clusters with spectroscopic redshifts drawn from the
XMM Cluster Survey first data release (XCS-DR1). This is the first
study spanning this redshift range using a single, large, homogeneous
cluster sample.
We compare our results to numerical simulations, where we fit
simulated cluster samples using the same methods used on the XCS data.
Description:
XCS-DR1 (http://www.xcs-home.org/datareleases) is constructed from
5776 XMM observations, publicly available before 2010 July.
In this work, we use only the subsample of 211 XCS-DR1 clusters with
spectroscopic redshifts.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tables1.dat 62 211 *The sample of 211 XCS-DR1 clusters with
spectroscopic redshifts used in this work
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Note on tables1.dat: The X-ray analysis pipelines used to measure LX and T are
described in Lloyd-Davies et al. (2011MNRAS.418...14L 2011MNRAS.418...14L).
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See also:
J/MNRAS/423/1024 : XCS-DR1 Cluster Catalogue (Mehrtens+, 2012)
Byte-by-byte Description of file: tables1.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- --- [XMMXCS]
8- 25 A18 --- XMMXCS XMMXCS name (JHHMMSS.s+DDMMSS.s)
27- 30 F4.2 --- z Redshift
32- 37 F6.3 10+37W LX Bolometric X-ray luminosity measured
within R500 (1)
39- 43 F5.3 10+37W E_LX Error on LX (upper value)
45- 50 F6.3 10+37W e_LX Error on LX (lower value)
52- 54 F3.1 keV T X-ray temperature
56- 58 F3.1 keV E_T Error on T (upper value)
60- 62 F3.1 keV e_T Error on T (lower value)
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Note (1): where R500 is the radius at which the enclosed mean density is
500 times the critical density at the cluster redshift
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 03-May-2013