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J/PASJ/56/965       X-ray properties of ASCA objects         (Fukazawa+, 2004)

ASCA compilation of X-ray properties of hot gas in elliptical galaxies and galaxy clusters: two breaks in the temperature dependences. Fukazawa Y., Makishima K., Ohashi T. <Publ. Astron. Soc. Jap., 56, 965-1009 (2004)> =2004PASJ...56..965F
ADC_Keywords: Galaxy catalogs ; Clusters, galaxy ; X-ray sources ; Morphology Keywords: galaxies: clusters: general - galaxies: elliptical and lenticular, cD - X-rays: galaxies: clusters - X-rays: ISM Abstract: Utilizing ASCA archival data of about 300 objects of elliptical galaxies, groups, and clusters of galaxies, we performed systematic measurements of the X-ray properties of hot gas in their systems, and compiled them in this paper. The steepness of the luminosity-temperature (LT) relation, LX∝(kT)alpha, in the range of kT∼1.5-15keV is alpha=3.17±0.15, consistent with previous measurements. Description: We utilized all of the ASCA data of elliptical galaxies and clusters. Several clusters were observed more than once, and we chose the observation with the longest exposure. The total number of objects that we identified as elliptical galaxies and clusters are 313, and are listed in table 3. Some of objects cannot be utilized for deriving various correlations, due to an unknown redshift (17), insignificant detection (13), or contamination of the environmental X-ray emission (such as cluster emission around non-cD elliptical galaxies) (10). In the following, we catalogued the physical properties of hot gas for all of the objects that were significantly detected. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 97 313 Sample list of clusters of galaxies table4.dat 70 298 Results of spectral fittings table5.dat 124 290 Results of radial profile fittings table6.dat 141 291 Flux, central surface brightness and luminosity table7.dat 141 57 *Results of radial profile fittings with the double-beta model
Note on table7.dat: We assume the parameters of the inner beta-model component alpha2= 10h50-1kpc and beta2=0.7.
See also: VI/117 : Observation Log from ASCA (PLAIN Center, 2001) J/ApJ/518/656 : ASCA Large Sky Survey (Ueda+, 1999) J/ApJS/133/1 : GIS catalog project : source catalog (Ueda+, 2001) J/ApJS/134/77 : ASCA Galactic Plane Survey faint X-ray sources (Sugizak+ 2001) J/ApJS/148/275 : ASCA AGN optical identifications (Akiyama+, 2003) J/PASJ/53/445 : ASCA Deep survey in Lockman Hole Field (Ishisaki+, 2001) J/PASJ/55/161 : ASCA sources in the SMC (Yokogawa+, 2003) Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 17 A17 --- Name Name of cluster 19- 26 I8 --- Seq Sequential number 27 A1 --- n_Seq [+] when redshift not available, estimated by ourselves (see text in detail) 29- 34 F6.4 --- z Redshift 36- 45 A10 "YYYY/MM/DD" Obs1.date Date of start of observation 46 A1 --- --- [-] 47- 51 A5 "h:m" Obs1.time Time of start of observation 53- 62 A10 "YYYY/MM/DD" Obs2.date Date of end of observation 63 A1 --- --- [-] 64- 68 A5 "h:m" Obs2.time Time of end of observation 70- 76 F7.3 deg RAdeg Right ascension in decimal degrees (J2000) 78- 84 F7.3 deg DEdeg Declination in decimal degrees (J2000) 86- 90 I5 s ExpTime Exposure time 92- 97 F6.3 ct/s CountRate ?=- Count rate in ct/s/1GIS
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 17 A17 --- Name Name of cluster 19- 21 I3 --- XCenter X center coordinates in units of DETX/DETY channel 23- 25 I3 --- YCenter Y center coordinates in units of DETX/DETY channel 27- 28 I2 --- Rad1 Inner radius of the integration region of spectra, in units of DETX/DETY channel 29 A1 --- --- [-] 30- 31 I2 --- Rad2 Outer radius of the integration region of spectra, in units of DETX/DETY channel 33- 37 F5.2 10+20cm-2 NH Hydrogen column density 39 I1 --- n_NH [1/2] Note on spectrum fitting (1) 41 A1 --- l_kT Limit flag on kT 42- 46 F5.2 keV kT Temperature energy 48- 52 F5.2 keV e_kT ? rms uncertainty on kT 54 A1 --- l_Abund Limit flag on Abund 55- 59 F5.2 Sun Abund ?=- Metal abundance 61- 64 F4.2 Sun e_Abund ? rms uncertainty on Abund 67- 70 F4.2 --- ThFrac Flux fraction of thermal component in the spectral fitting
Note (1): Note is numbered as follows: 1 = result in fitting only the GIS spectrum 2 = result in simultaneous fitting with the GIS and SIS spectra
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 17 A17 --- Name Name of cluster 18 A1 --- n_Name [+] if the redshift is assumed to be the value in table 3 20- 23 F4.2 --- beta1 beta1 parameter (see article) 25- 28 F4.2 --- e_beta1 Error on beta1 (lower limit) 30- 33 F4.2 --- E_beta1 Error on beta1 (upper limit) 35- 39 F5.2 arcmin alpha1 Core radius, in arcmin (see article) 41- 44 F4.2 arcmin e_alpha1 Error on alpha1 (lower limit) 46- 49 F4.2 arcmin E_alpha1 Error on alpha1 (upper limit) 51- 56 F6.1 kpc alpha1kpc Core radius, in h50-1kpc 58- 63 F6.2 10-3cm-3 ne01 Electron density in 10-3h500.5cm-3 65- 70 F6.2 10-3cm-3 e_ne01 Error on ne01 (lower limit) 72- 77 F6.2 10-3cm-3 E_ne01 Error on ne01 (upper limit) 79- 85 E7.2 solMass Mtot Total mass, in h_50_^-1^solMass (1) 87- 94 E8.3 solMass Mgas Gas mass, in h_50_^-2.5^solMass (1) 96-102 E7.2 solMass e_Mgas Error on Mgas (lower limit) in h50-2.5solMass 104-110 E7.2 solMass E_Mgas Error on Mgas (upper limit) in h50-2.5solMass 112-113 A2 --- l_Rlimit [=> ] Limit flag on Rlimit 114-118 F5.3 Mpc Rlimit Detection radius in h_5-_^-1^Mpc (2) 120-124 F5.2 arcmin Rlimit2 Detection radius in arcmin
Note (1): The mass within Rlimit. See text in detail. Note (2): The maximum radius up to which the GIS can detect the X-ray emission
Byte-by-byte Description of file: table6.dat
Bytes Format Units Label Explanations
1- 17 A17 --- Name Name of cluster 18 A1 --- n_Name [+] if the redshift is assumed to be the value in table 3 20- 26 E7.2 mW/m2 FX X-ray flux in the 0.5-10keV observer frame 28- 34 E7.2 mW/m2/arcmin2 SX Central surface brightness in the 0.5-10keV observer frame 36- 42 E7.2 mW/m2/arcmin2 e_SX Error on SX (lower limit) 44- 51 E8.3 mW/m2/arcmin2 E_SX Error on SX (upper limit) 53- 60 E8.3 10-7W LX Bolometric X-ray luminosity, in h50-2erg/s 62- 68 E7.2 10-7W e_LX Error on LX (lower limit) 70- 78 E9.4 10-7W E_LX Error on LX (upper limit) 80- 83 F4.2 --- FLum Fraction of luminosity in 0.5-10keV band 85 A1 --- l_LX2 Limit flag on LX2 86- 92 E7.2 W LX2 ? Bolometric X-ray luminosity for the inner components in the double-beta model fitting, in h50-2erg/s 94-100 E7.2 W e_LX2 ? Error on LX2 (lower limit) 102-109 E8.3 W E_LX2 ? Error on LX2 (upper limit) 111-117 E7.2 W LX1 ? Bolometric X-ray luminosity for the outer components in the double-beta model fitting, in h50-2erg/s 119-125 E7.2 W e_LX1 ? Error on LX1 (lower limit) 127-133 E7.2 W E_LX1 ? Error on LX1 (upper limit) 135-141 E7.2 W LX0.6 ? Bolometric X-ray luminosity obtained when we assumed beta1=0.6 for the outer component
Byte-by-byte Description of file: table7.dat
Bytes Format Units Label Explanations
1- 17 A17 --- Name Name of cluster 19- 22 F4.2 --- beta1 beta1 parameter (see article) 24- 27 F4.2 --- e_beta1 Error on beta1 (lower limit) 29- 32 F4.2 --- E_beta1 Error on beta1 (upper limit) 34- 40 F7.2 arcmin alpha1 Code radius, in arcmin (see article) 42- 46 F5.2 arcmin e_alpha1 Error on alpha1 (lower limit) 48- 52 F5.2 arcmin E_alpha1 Error on alpha1 (upper limit) 54- 58 F5.1 kpc alpha1kpc Core radius, in h50-1kpc 60- 65 F6.1 kpc alpha10.6 Core radius when we assumed beta1=0.6 for the outer beta-model component 67- 72 F6.2 10-3cm-3 ne02 Electron density for the inner component, in 10-3h500.5cm-3 74- 79 F6.2 10-3cm-3 e_ne02 Error on ne02 (lower limit) 81- 86 F6.2 10-3cm-3 E_ne02 Error on ne02 (upper limit) 88- 91 F4.2 10-3cm-3 ne01 Electron density for the outer component, in 10-3h500.5cm-3 93- 96 F4.2 10-3cm-3 e_ne01 Error on ne01 (lower limit) 98-102 F5.2 10-3cm-3 E_ne01 Error on ne01 (upper limit) 104-107 F4.2 10-3cm-3 ne010.6 Electron density for the outer component, when we assumed beta1=0.6 for the outer beta-model component 109-115 E7.2 solMass Mgas Gas mass within detection radius, Rlimit, in h50-2.5solMass 117-123 E7.2 solMass e_Mgas Error in Mgas (lower limit), in h50-2.5solMass 125-132 E8.3 solMass E_Mgas Error in Mgas (upper limit), in h50-2.5solMass 134-141 E8.3 solMass Mgas0.6 Gas mass when we assumed beta1=0.6 for the outer beta-model component
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 02-Nov-2005
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