J/MNRAS/435/1265 Masses of galaxy clusters (Ettori, 2013)
The generalized scaling relations for X-ray galaxy clusters:
the most powerful mass proxy.
Ettori S.
<Mon. Not. R. Astron. Soc., 435, 1265-1277 (2013)>
=2013MNRAS.435.1265E 2013MNRAS.435.1265E
ADC_Keywords: Clusters, galaxy ; Redshifts ; Stars, masses
Keywords: galaxies: clusters: general; cosmology: miscellaneous
X-rays: galaxies: clusters
Abstract:
The application to observational data of the generalized scaling
relations (gSRs) presented in Ettori et al. (2012MNRAS.420.2058E 2012MNRAS.420.2058E) is
here discussed. We extend further the formalism of the gSR in the
self-similar model for X-ray galaxy clusters, showing that for a
generic relation Mtot∝LαMgβTγ, where
L, Mg and T are the gas luminosity, mass and temperature,
respectively, the values of the slopes lay in the plane
4α+3β+2γ=3. Using published data set, we show that
some projections of the gSR are the most efficient relations, holding
among observed physical quantities in the X-ray band, to recover the
cluster gravitating mass.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tableb1.dat 87 120 *Best-fitting results on the reconstructed masses
of the objects of four samples using the MgT
generalized scaling relations (gSR)
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Note on tableb1.dat: The redshifts quoted in the original work are used. The
cosmology used has H0=70km/s/Mpc, Ωm=0.3 and ΩΛ=0.7
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Byte-by-byte Description of file: tableb1.dat
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Bytes Format Units Label Explanations
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1- 18 A18 --- Cluster Cluster name
21- 23 A3 --- Sample Sample designation (1)
25- 30 F6.4 --- z [0.01/0.55] Redshift
32 I1 --- CC [0/1] Cluster hosts (1) or not (0) a
cooling core (see Section 3.1)
34- 38 F5.2 10+14Msun MHSE Hydrostatic equilibrium mass MHSE
40- 43 F4.2 10+14Msun e_MHSE Error on MHSE
45- 49 F5.2 10+14Msun MfM13 Fitting mass with M13 z and MHSE
51- 54 F4.2 10+14Msun e_MfM13 Error on MfM13
56- 60 F5.2 10+14Msun MfM13-CC Fitting mass with M13-CC z and MHSE
62- 65 F4.2 10+14Msun e_MfM13-CC Error on MfM13-CC
67- 71 F5.2 10+14Msun MfM12 Fitting mass with M12 z and MHSE
73- 76 F4.2 10+14Msun e_MfM12 Error on MfM12
78- 82 F5.2 10+14Msun MfS09 Fitting mass with S09 z and MHSE
84- 87 F4.2 10+14Msun e_MfS09 Error on MfS09
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Note (1): Samples as follows:
M13 = Mahdavi et al. (2013ApJ...767..116M 2013ApJ...767..116M)
M12 = Maughan (2014MNRAS.437.1171M 2014MNRAS.437.1171M)
P09 = Pratt et al. (2009A&A...498..361P 2009A&A...498..361P)
S09 = Sun et al. (2009ApJ...693.1142S 2009ApJ...693.1142S)
M13-CC = subsample of cooling core (CC) systems of M13 sample
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 24-Sep-2014