J/ApJ/794/48 XMM-Newton galaxy clusters X-ray properties (Connor+, 2014)
Scaling relations and X-ray properties of moderate-luminosity galaxy clusters
from 0.3<z<0.6 with XMM-Newton.
Connor T., Donahue M., Sun M., Hoekstra H., Mahdavi A., Conselice C.J.,
McNamara B.
<Astrophys. J., 794, 48 (2014)>
=2014ApJ...794...48C 2014ApJ...794...48C (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; X-ray sources ; Redshifts
Keywords: galaxies: clusters: general - X-rays: galaxies: clusters
Abstract:
We present new X-ray temperatures and improved X-ray luminosity
estimates for 15 new and archival XMM-Newton observations of galaxy
clusters at intermediate redshift with mass and luminosities near the
galaxy group/cluster division (M2500<2.4x1070-1M☉,
L<2x1044erg/s, 0.3<z<0.6). These clusters have weak-lensing
mass measurements based on Hubble Space Telescope observations of
clusters representative of an X-ray-selected sample (the ROSAT 160SD
survey). The angular resolution of XMM-Newton allows us to disentangle
the emission of these galaxy clusters from nearby point sources, which
significantly contaminated previous X-ray luminosity estimates for 6
of the 15 clusters. We extend cluster scaling relations between X-ray
luminosity, temperature, and weak-lensing mass for low-mass,
X-ray-selected clusters out to redshift ∼0.45. These relations are
important for cosmology and the astrophysics of feedback in galaxy
groups and clusters. Our joint analysis with a sample of 50 clusters
in a similar redshift range but with larger masses
(M500<21.9x1014M☉, 0.15≤z≤0.55) from the Canadian Cluster
Comparison Project finds that within r2500, M∝L0.44±0.05,
T∝L0.23±0.02, and M∝T1.9±0.2. The estimated
intrinsic scatter in the M-L relation for the combined sample is
reduced to σlog(M|L)=0.10, from σlog(M|L)=0.26
with the original ROSAT measurements. We also find an intrinsic
scatter for the T-L relation, σlog(T|L)=0.07±0.01.
Description:
Our sample is based on 25 galaxy clusters first detected in the ROSAT
160 Square Degree Survey. Vikhlinin et al. (1998, J/ApJ/502/558)
describe the initial survey, and a reanalysis with spectroscopic
redshifts comes from Mullis et al. (2003, J/ApJ/594/154). These 25
clusters were further studied with an HST snapshot program (PI:
Donahue) of one orbit per cluster with the F814W filter. Due to the
nature of the snapshot program, the clusters were randomly selected
from a master list of 72 clusters. We searched the archive of
XMM-Newton observations with the XMM-Newton Science Archive (XSA) v7.2
within a 15' radius of the cluster positions given in Hoekstra et al.
(2011ApJ...726...48H 2011ApJ...726...48H). As of 2013 June 28, we found 27 observations
that included the cluster. All observations were taken with the
European Photon Imaging Camera (EPIC), which consists of two MOS
cameras (Turner et al. 2001A&A...365L..27T 2001A&A...365L..27T) and the pn camera
(Struder et al. 2001A&A...365L..18S 2001A&A...365L..18S).
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table3.dat 35 67 Masked Sources
table5.dat 54 50 CCCP Cluster Properties Within r2500
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See also:
V/138 : A catalogue of cross-matched radio/infrared/X-ray sources
(Combi+, 2011)
IX/50 : XMM-Newton Serendipitous Source Catalogue 3XMM-DR6
(XMM-SSC, 2016)
J/ApJ/502/558 : Catalog of ROSAT galaxy clusters (Vikhlinin+ 1998)
J/ApJ/594/154 : 160 square degree ROSAT survey (Mullis+, 2003)
J/ApJS/172/182 : XMM Clusters of galaxies in COSMOS field (Finoguenov+ 2007)
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 h RAh Hour of Right Ascension (J2000)
4- 5 I2 min RAm Minute of Right Ascension (J2000)
7- 12 F6.3 s RAs Second of Right Ascension (J2000)
14 A1 --- DE- Sign of the Declination (J2000)
15- 16 I2 deg DEd Degree of Declination (J2000)
18- 19 I2 arcmin DEm Arcminute of Declination (J2000)
21- 25 F5.2 arcsec DEs Arcsecond of Declination (J2000)
27- 35 F9.5 arcsec Rad Mask radius
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Byte-by-byte Description of file: table5.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 16 A16 --- Name Cluster Name
18- 21 F4.2 10+14Msun Mass Weak lensing mass (in 1014Msun/h70) (1)
23- 27 F5.3 10+14Msun e_Mass Error on Mass (in 1014Msun/h70) (1)
29- 32 F4.2 10+38W Lum Bolometric luminosity
(in 1045erg/s/h702) (2)
34- 37 F4.2 10+38W e_Lum Error on Lum (in 1045erg/s/h702) (2)
39- 43 F5.2 keV Temp X-ray temperature
45- 48 F4.2 keV e_Temp Error on Temp
50- 54 F5.3 --- z Redshift
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Note (1): Mass multiplied by E(z).
Note (2): Luminosity divided by E(z).
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History:
From electronic version of the journal
(End) Prepared by [AAS], Tiphaine Pouvreau [CDS] 25-Apr-2017