J/A+A/278/379 X-ray Emission from Abell Clusters of Galaxies (Briel+ 1993)
X-ray Emission from a Complete Sample of Abell Clusters of Galaxies
Briel U.G., Henry J.P.
<Astron. Astrophys. 278, 379 (1993)>
=1993A&A...278..379B 1993A&A...278..379B
ADC_Keywords: X-ray sources ; Clusters, galaxy
Keywords: cosmology: observations - galaxies: clustering - X-rays: galaxies
Description:
The results of ROSAT All-Sky Survey (RASS, see cat. IX/10) have been
used to investigate the X-ray properties of a complete sample of Abell
clusters within a 561 square degree region at high galactic latitude;
the mean redshift of the sample is 0.17.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1 105 145 Summary of the characteristics and X-ray
results of the deep cluster sample
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Byte-per-byte Description of file: table1
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Bytes Format Units Label Explanations
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1- 4 I4 --- Abell Abell Number
8- 9 I2 h RAh Right Ascension (1950) (1)
11- 12 I2 min RAm Right Ascension (1950) (1)
14- 17 F4.1 s RAs Right Ascension (1950) (1)
20 A1 --- DE- Declination sign (1)
21- 22 I2 deg DEd Declination (1950) (1)
24- 25 I2 arcmin DEm Declination (1950) (1)
27- 28 I2 arcsec DEs Declination (1950) (1)
32- 36 F5.3 --- z Redshift
40 I1 --- Rich. Abell's richness
44- 46 I3 --- ACO ACO's galaxy counts
50- 54 F5.3 10+21/cm2 N(HI) Galactic neutral hydrogen column density
58- 62 F5.3 --- FCCC Fraction of cluster counts collected
66- 71 F6.1 s Exp ROSAT-All-Sky-Survey exposure time
74- 79 F6.2 ct/ks NCR Net counting rate
83- 87 F5.2 ct/ks e_NCR 1-sigma error of the counting rate
91 A1 --- l_XFlux limit flag on X-ray flux
92- 97 F6.2 10-16W/m2 XFlux X-ray flux in 0.5-2.5 keV (observed frame)
101 A1 --- l_XLum limit flag on X-ray luminosity
102-105 F4.2 10+37W XLum X-ray luminosity in 0.5-2.5 keV (rest frame)
for H_o = 50 km/s/Mpc and q_o = 0.5
(unit 10+44 erg/s)
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Note (1): the position listed corresponds to the geometrical "average"
position of those (frequently very few) galaxies listed by
Huchra et al. (1990ApJ...365...66H 1990ApJ...365...66H)
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Acknowledgements:
Ulrich G. Briel
History:
* 22-Dec-1993: first archived at CDS
* 21-Apr-1997: duplicated cluster A 1918 removed
(End) Patricia Bauer [CDS] 22-Dec-1993