J/A+A/555/A66 Baryons from groups and clusters of galaxies (Lagana+, 2013)
A comprehensive picture of baryons in groups and clusters of galaxies.
Lagana T.F., Martinet N., Durret F., Lima Neto G.B., Maughan B.,
Zhang Y.-Y.
<Astron. Astrophys., 555, A66 (2013)>
=2013A&A...555A..66L 2013A&A...555A..66L
ADC_Keywords: Clusters, galaxy ; Redshifts
Keywords: galaxies: clusters: general - cosmological parameters -
galaxies: clusters: intracluster medium
Abstract:
Based on XMM-Newton, Chandra, and SDSS data, we investigate the baryon
distribution in groups and clusters and its use as a cosmological
constraint. For this, we considered a sample of 123 systems with
temperatures kT500=1.0-9.0keV, total masses in the mass range
M500=(∼1013-4x1015)h70-1M☉, and redshifts 0.02<z<1.3.
The gas masses and total masses are derived from X-ray data under the
assumption of hydrostatic equilibrium and spherical symmetry. The
stellar masses are based on SDSS-DR8 optical photometric data. For the
37 systems out of 123 that had both optical and X-ray data available,
we investigated the gas, stellar, and total baryon mass fractions
inside r2500 and r500 and the differential gas mass fraction within
the spherical annulus between r2500 and r500, as a function of total
mass. For the other objects, we investigated the gas mass fraction
only.
Description:
In the present work, we analyse the sample of 114 clusters from
Maughan et al. (2008, cat. J/ApJS/174/117), which were updated in M12,
in the redshift range 0.11<z<1.3 and with temperatures ranging
from 2.0keV up to 8.9keV. 28 out of 114 have optical data available.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1a.dat 124 9 General properties, X-ray parameters and stellar
masses derived for our sample for groups
table1b.dat 129 117 General properties, X-ray parameters and stellar
masses derived for our sample for clusters from M12
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See also:
J/ApJS/174/117 : Properties and metal abundances of clusters (Maughan+, 2008)
Byte-by-byte Description of file: table1a.dat
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Bytes Format Units Label Explanations
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1- 15 A15 --- Name Group name
17- 21 F5.3 --- z Redshift
23- 24 I2 h RAh Right ascension (J2000)
26- 27 I2 min RAm Right ascension (J2000)
29- 32 F4.1 s RAs Right ascension (J2000)
34 A1 --- DE- Declination sign (J2000)
35- 36 I2 deg DEd Declination (J2000)
38- 39 I2 arcmin DEm Declination (J2000)
41- 42 I2 arcsec DEs Declination (J2000)
44- 48 F5.1 kpc r2500 Radius inside which the mean density is
higher than the critical value by a factor
of 2500 in kpc/h70
50- 54 F5.1 kpc r500 Radius inside which the mean density is
higher than the critical value by a factor
of 500 in kpc/h70
56- 59 F4.2 keV <kT> Mean gaz temperature
61- 64 F4.2 keV e_<kT> rms uncertainty on <kT>
66- 69 F4.2 10+12Msun Mg2500 Gaz mass inside r2500
71- 74 F4.2 10+12Msun e_Mg2500 rms uncertainty on Mg2500
76- 79 F4.2 10+12Msun Mg500 Gaz mass inside r500
81- 84 F4.2 10+12Msun e_Mg500 rms uncertainty on Mg500
86- 89 F4.2 10+13Msun Mt2500 Total mass inside r2500
91- 94 F4.2 10+13Msun e_Mt2500 rms uncertainty on Mt2500
96- 99 F4.2 10+13Msun Mt500 Total mass inside r500
101-104 F4.2 10+13Msun e_Mt500 rms uncertainty on Mt500
106-109 F4.2 10+12Msun Ms2500 Stellar mass inside r2500
111-114 F4.2 10+12Msun e_Ms2500 rms uncertainty on Ms2500
116-119 F4.2 10+12Msun Ms500 Stellar mass inside r500
121-124 F4.2 10+12Msun e_Ms500 rms uncertainty on Ms500
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Byte-by-byte Description of file: table1b.dat
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Bytes Format Units Label Explanations
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1- 16 A16 --- Name Cluster name
18- 21 F4.2 --- z Redshift
23- 24 I2 h RAh Right ascension (J2000)
26- 27 I2 min RAm Right ascension (J2000)
29- 34 F6.3 s RAs Right ascension (J2000)
36 A1 --- DE- Declination sign (J2000)
37- 38 I2 deg DEd Declination (J2000)
40- 41 I2 arcmin DEm Declination (J2000)
43- 47 F5.2 arcsec DEs Declination (J2000)
49- 53 F5.1 kpc r2500 Radius inside which the mean density is
higher than the critical value by a factor
of 2500 (in kpc/h70)
55- 60 F6.1 kpc r500 Radius inside which the mean density is
higher than the critical value by a factor
of 500 (in kpc/h70)
62- 65 F4.1 keV <kT> Mean gaz temperature
67- 69 F3.1 keV e_<kT> rms uncertainty on <kT>
71- 74 F4.2 10+13Msun Mg2500 Gaz mass inside r2500
76- 79 F4.2 10+13Msun e_Mg2500 rms uncertainty on Mg2500
81- 84 F4.1 10+13Msun Mg500 Gaz mass inside r500
86- 88 F3.1 10+13Msun e_Mg500 rms uncertainty on Mg500
90- 93 F4.2 10+14Msun Mt2500 Total mass inside r2500
95- 98 F4.2 10+14Msun e_Mt2500 rms uncertainty on Mt2500
100-104 F5.2 10+14Msun Mt500 Total mass inside r500
106-109 F4.2 10+14Msun e_Mt500 rms uncertainty on Mt500
111-114 F4.2 10+13Msun Ms2500 ? Stellar mass inside r2500
116-119 F4.2 10+13Msun e_Ms2500 ? rms uncertainty on Ms2500
121-124 F4.2 10+13Msun Ms500 ? Stellar mass inside r500
126-129 F4.2 10+13Msun e_Ms500 ? rms uncertainty on Ms500
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 25-Oct-2013