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J/A+A/533/A33       LMXBs detected in nearby galaxies        (Zhang+, 2011)

Luminosity functions of LMXBs in different stellar environments. Zhang Z., Gilfanov M., Voss R., Sivakoff G.R., Kraft R.P., Brassington N.J., Kundu A., Jordan A., Sarazin C. <Astron. Astrophys., 533, A33 (2011)> =2011A&A...533A..33Z
ADC_Keywords: Clusters, globular ; Binaries, X-ray Keywords: X-rays: binaries - globular clusters: general Abstract: Based on the archival data from the Chandra observations of nearby galaxies, we study different sub populations of low-mass X-ray binaries (LMXBs) - dynamically formed systems in globular clusters (GCs) and in the nucleus of M 31 and (presumably primordial) X-ray binaries in the fields of galaxies. Our aim is to produce accurate luminosity distributions of X-ray binaries in different environments, suitable for quantitative comparison with each other and with the output of population synthesis calculations. Our sample includes seven nearby galaxies (M 31, Maffei 1, Centaurus A, M 81, NGC 3379, NGC 4697, and NGC 4278) and the Milky Way, which together provide relatively uniform coverage down to the luminosity limit of 1035erg/s. In total we have detected 185 LMXBs associated with GCs, 35 X-ray sources in the nucleus of M 31, and 998 field sources of which ∼365 are expected to be background AGN. We combine these data, taking special care to accurately account for X-ray and optical incompleteness corrections and the removal of the contamination from the cosmic X-ray background sources, to produce luminosity distributions of X-ray binaries in different environments to far greater accuracy than has been obtained previously. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 28 93 The list of Chandra observations analyzed in this paper table6.dat 45 185 All the 185 LMXBs in globulars in our sample
See also: B/chandra : The Chandra Archive Log (CXC, 1999-) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 8 A8 --- Gal Galaxy name (1) 10 A1 --- n_ObsID [*] Reference observation (2) 11- 14 I4 --- ObsID Chandra Obs-ID 16- 21 A6 --- Inst Instrument (ACIS-I or ACIS-S) 23- 28 F6.2 ks ExpTime Exposure time
Note (1): M 31(1) is the bulge region and M 31(2) is the disk region. Note (2): The observations marked by "*" were used as the reference when combining the data.
Byte-by-byte Description of file: table6.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Sequential number 5- 12 A8 --- Gal Galaxy where source is detected 15- 16 I2 h RAh Source right ascension (J2000) 18- 19 I2 min RAm Source right ascension (J2000) 21- 25 F5.2 s RAs Source right ascension (J2000) 27 A1 --- DE- Source declination sign (J2000) 28- 29 I2 deg DEd Source declination (J2000) 31- 32 I2 arcmin DEm Source declination (J2000) 34- 38 F5.2 arcsec DEs Source declination (J2000) 40- 45 F6.2 10+29W LX X-ray luminosity in the 0.5-8keV band (in units of 10+36erg/s)
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 25-Nov-2011
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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