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J/ApJ/662/525       LMXBs in globular clusters of 5 galaxies   (Kundu+, 2007)

Probing the formation of low-mass X-ray binaries in globular clusters and the field. Kundu A., Maccarone T.J., Zepf S.E. <Astrophys. J., 662, 525-543 (2007)> =2007ApJ...662..525K
ADC_Keywords: Galaxies, nearby ; Clusters, globular ; X-ray sources ; Photometry Keywords: galaxies: general - galaxies: star clusters - globular clusters: general - X-rays: binaries - X-rays: galaxies Abstract: We present an analysis of LMXBs and GCs in five early-type galaxies using Chandra X-ray and HST optical data. Of the 186 LMXBs within the optical fields of view, 71 are in GCs, confirming that LMXBs are formed particularly efficiently in clusters due to dynamical interactions. Description: We have analyzed archival Chandra ACIS-S3 images of five early-type galaxies, NGC 1399, NGC 3115, NGC 3379, NGC 4594, and NGC 4649. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 63 175 NGC 1399 X-ray binaries table3.dat 61 554 NGC 1399 globular clusters table4.dat 71 24 NGC 1399 LMXB-GC candidates table5.dat 63 86 NGC 3115 X-ray binaries table6.dat 61 133 NGC 3115 globular clusters table7.dat 71 9 NGC 3115 LMXB-GC candidates table8.dat 63 71 NGC 3379 X-ray binaries table9.dat 61 61 NGC 3379 globular clusters table10.dat 71 7 NGC 3379 LMXB-GC candidates table11.dat 63 141 NGC 4594 X-ray binaries table12.dat 61 193 NGC 4594 globular clusters table13.dat 71 15 NGC 4594 LMXB-GC candidates table14.dat 63 165 NGC 4649 X-ray binaries table15.dat 61 418 NGC 4649 globular clusters table16.dat 71 16 NGC 4649 LMXB-GC candidates
Byte-by-byte Description of file: table[258].dat table1[14].dat
Bytes Format Units Label Explanations
1- 3 I3 --- XID Running X-ray identification number (1) 5 I1 --- f_XID [1,4]? Remark on XID (2) 7- 12 A6 --- --- [CXOKMZ] 14- 29 A16 --- CXOKMZ Chandra identification, JHHMMSS.s+SSMMSS 31- 32 I2 h RAh Hour of Right Ascension (J2000) 34- 35 I2 min RAm Minute of Right Ascension (J2000) 37- 41 F5.2 s RAs Second of Right Ascension (J2000) 43 A1 --- DE- Sign of the declination (J2000) 44- 45 I2 deg DEd Degree of Declination (J2000) 47- 48 I2 arcmin DEm Arcminute of Declination (J2000) 50- 53 F4.1 arcsec DEs Arcsecond of Declination (J2000) 55- 61 E7.2 10-7W LX Observed X-ray luminosity in erg/s 63 A1 --- HST [YN] Source within the HST field-of-view?
Note (1): Sources identified as [KMZ2007] NGC NNNN X NNN in Simbad. Note (2): Flag as follows: 1 = Nuclear source 2 = Optical counterparts outside the typical color range of globular clusters 3 = Likely optical counterpart on the edge of the WFPC2 chip 4 = Likely associated with the nearby companion spiral galaxy NGC 4647
Byte-by-byte Description of file: table[369].dat table1[25].dat
Bytes Format Units Label Explanations
1- 3 I3 --- OID Running optical identification number (1) 5 I1 --- f_OID [1,2]? Source too close to center (2) 7- 8 I2 h RAh Hour of Right Ascension (J2000) 10- 11 I2 min RAm Minute of Right Ascension (J2000) 13- 17 F5.2 s RAs Second of Right Ascension (J2000) 19 A1 --- DE- Sign of the declination (J2000) 20- 21 I2 deg DEd Degree of Declination (J2000) 23- 24 I2 arcmin DEm Arcminute of Declination (J2000) 26- 29 F4.1 arcsec DEs Arcsecond of Declination (J2000) 31- 35 F5.2 mag Bmag The B band magnitude 37- 40 F4.2 mag e_Bmag Uncertainty in Bmag 42- 46 F5.2 mag Imag The I band magnitude 48- 51 F4.2 mag e_Imag Uncertainty in Imag 53- 56 F4.2 mag B-I The (B-I) color index 58- 61 F4.2 mag e_B-I Uncertainty in B-I
Note (1): Sources identified as [KMZ 2007] NGC NNNN GC NNN in Simbad. Note (2): Flag as follows: 1 = Objects are within 8" of the center of the galaxy and are not considered for the rest of the LMXB-GC analysis due to the high X-ray background in this region. Object 1 is the nucleus of the galaxy. 2 = Objects are within 10" of the center of the galaxy and are not considered for the rest of the LMXB-GC analysis due to the high X-ray background in this region
Byte-by-byte Description of file: table[47].dat table1[036].dat
Bytes Format Units Label Explanations
1- 6 A6 --- --- [CXOKMZ] 8- 23 A16 --- CXOKMZ Chandra Name (JHHMMSS.s+DDMMSS) 25- 26 I2 --- XID X-ray identification number (1) 28- 30 I3 --- OID Optical identification number (2) 32- 39 E8.3 10-7W LX X-ray luminosity 41- 45 F5.2 mag Bmag B magnitude 47- 50 F4.2 mag e_Bmag rms uncertainty on Bmag 52- 56 F5.2 mag Imag I magnitude 58- 61 F4.2 mag e_Imag rms uncertainty on Imag 63- 66 F4.2 mag B-I B-I colour index 68- 71 F4.2 mag e_B-I rms uncertainty on B-I
Note (1): As in tables 2, 5, 8, 11 and 14, respectively. Note (2): As in tables 3, 6, 9, 12 and 15, respectively.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 13-May-2009
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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