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J/ApJ/588/1009      Chandra X-ray observations of NGC 2516   (Damiani+, 2003)

Chandra X-ray observations of the young open cluster NGC 2516. Damiani F., Flaccomio E., Micela G., Sciortino S., Harnden F.R.Jr, Murray S.S., Wolk S.J., Jeffries R.D. <Astrophys. J. 588, 1009 (2003)> =2003ApJ...588.1009D
ADC_Keywords: Clusters, open ; X-ray sources ; Photometry, UBVRI Keywords: open clusters and associations: individual (NGC 2516) - stars: coronae - X-rays: stars Abstract: We present a comprehensive study of the Chandra X-ray observations of the young open cluster NGC 2516. We have analyzed eight individual Chandra observations. We have combined the data to achieve the greatest sensitivity, reaching down to log fX=-14.56(erg/s/cm2), or logLX=28.69(erg/s) at the distance of NGC 2516. Out of 284 X-ray sources detected, 155 are identified with photometric cluster members, with very little ambiguity. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table4.dat 85 288 NGC 2516 X-ray source optical identifications table5.dat 16 114 X-ray luminosities for detected NGC 2516 members table6.dat 11 570 Upper limits to X-ray luminosities for undetected NGC 2516 members
See also: J/AJ/123/290 : UBVI CCD photometry of NGC 2516 (Sung+, 2002) J/A+A/312/818 : NGC 2516 X-ray sources (Dachs+, 1996) Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 3 I3 --- [DFM2003] X-ray source number 5 I1 h RAh Hour of mean Right Ascension (J2000) 7- 8 I2 min RAm Minute of mean Right Ascension (J2000) 10- 14 F5.2 s RAs Second of mean Right Ascension (J2000) 16 A1 --- DE- Sign of the mean Declination (J2000) 17- 18 I2 deg DEd Degree of mean Declination (J2000) 20- 21 I2 arcmin DEm Arcminute of mean Declination (J2000) 23- 26 F4.1 arcsec DEs Arcsecond of mean Declination (J2000) 28- 31 F4.2 arcsec PosErr Positional error 33- 37 F5.2 10-6ct/s/cm2 Flux Mean source X-Ray flux 39- 42 F4.2 10-6ct/s/cm2 e_Flux Error in Flux 44 I1 --- o_[DFM2003] Number of detections 46- 50 I5 --- JTH ? Jeffries et al. (2001A&A...375..863J) number (G1) 52- 56 F5.2 arcsec Offset ? Optical-X-ray offset 58- 63 F6.3 mag Vmag ? The V band magnitude 65- 70 F6.3 mag B-V ? The (B-V) color 72- 76 F5.3 mag V-I ? The (V-I) color 78- 80 A3 --- Mem Cluster member flag (yes/no) 82- 84 A3 --- Bin Binary flag (yes/no)
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 3 I3 --- [DFM2003] X-ray number 5- 9 I5 --- JTH Jeffries et al. (2001A&A...375..863J) number (G1) 11- 15 F5.2 [10-7W] logLX Log of X-ray luminosity in units of erg/s
Byte-by-byte Description of file: table6.dat
Bytes Format Units Label Explanations
1- 5 I5 --- JTH Jeffries et al. (2001A&A...375..863J) number (G1) 7- 11 F5.2 [10-7W] logLX Log of the upper limit X-ray luminosity in units of erg/s
Global notes: Note (G1): Cl* NGC 2516 JTH NNNNN in Simbad
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Bauer [CDS] 26-Sep-2003
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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