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J/A+A/309/116       10 globular cluster ROSAT observations (Johnston+, 1996)

ROSAT observations of ten globular clusters with large core radii Johnston H.M., Verbunt F., Hasinger G. <Astron. Astrophys. 309, 116 (1996)> =1996A&A...309..116J
ADC_Keywords: Clusters, globular ; X-ray sources Mission_Name: ROSAT Keywords: globular clusters: general - X-rays: stars Description: We present X-ray observations of ten globular clusters observed with the ROSAT PSPC. The clusters were chosen to have large core radii and to be nearby. Three clusters contain X-ray sources which are probably associated with the cluster. One is the previously discovered X-ray transient H1825-331 in NGC 6652. The other two, in NGC 6366 and NGC 6809, are new members of the class of low-luminosity sources, with luminosities in the region of 1032erg/s. Upper limits can be placed on the source temperatures of both sources, making them similar to sources found in other globular clusters by ROSAT. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 104 115 Detected sources
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 2 A2 --- Name Source name (1) 4- 10 A7 --- Cluster Cluster name 13- 14 I2 h RAh Right ascension J2000 (hours) 16- 17 I2 min RAm Right ascension J2000 (minutes) 19- 22 F4.1 s RAs Right ascension J2000 (seconds) 25 A1 --- DE- Declination J2000 sign 26- 27 I2 deg DEd Declination J2000 (degrees) 29- 30 I2 arcmin DEm Declination J2000 (minutes) 32- 33 I2 arcsec DEs Declination J2000 (seconds) 35- 39 F5.1 --- Delta [0,] Offset from core (core radii) 41- 46 I6 ct Cts Counts (2) 48- 49 I2 ct e_Cts ? Error on counts 51- 58 F8.2 10-24W/m2 S 0.5-2.5 keV X-ray flux 61 A1 --- l_HR1 Limit flag on HR1 62- 66 F5.2 --- HR1 []? Hardness ratio 1 68- 71 F4.2 --- e_HR1 []? Error on HR1 74 A1 --- l_HR2 Limit flag on HR2 75- 79 F5.2 --- HR2 []? Hardness ratio 2 81- 84 F4.2 --- e_HR2 []? Error on HR2 88- 99 A12 --- ID Optical ID (3) 101-104 F4.1 arcsec Offset ? Offset between X-ray & optical
Note (1): "C" represents the upper limit to the number of counts at the cluster core, for clusters where no source was detected in the core. Note (2): Counts <0 indicate an upper limit Note (3): A source was taken to be a counterpart when the difference in position was less than about 15 arcsec.
Courtesy: H.M. Johnston, History: For object No. 4, the right identification, HD89493 instead of HD89483, was corrected on 23-Jul-2001
(End) Patricia Bauer [CDS] 12-Jan-1996
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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