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J/ApJ/682/199   Globulars with X-ray sources in NGC 5128      (Woodley+, 2008)

Globular clusters and X-ray point sources in Centaurus A (NGC 5128). Woodley K.A., Raychaudhury S., Kraft R.P., Harris W.E., Jordan A., Whitaker K.E., Jones C., Forman W.R., Murray S.S. <Astrophys. J., 682, 199-211 (2008)> =2008ApJ...682..199W
ADC_Keywords: Clusters, globular ; Photometry ; Abundances, [Fe/H] ; X-ray sources ; Galaxies, nearby Keywords: galaxies: elliptical and lenticular, cD - globular clusters: general - galaxies: individual (NGC 5128) - X-rays: binaries - X-rays: galaxies Abstract: We detect 353 X-ray point sources, mostly low-mass X-ray binaries (LMXBs), in four Chandra observations of Centaurus A (NGC 5128), the nearest giant early-type galaxy, and correlate this point-source population with the largest available ensemble of confirmed and likely globular clusters (GCs) associated with this galaxy. Of the X-ray sources, 31 are coincident with 30 GCs that are confirmed members of the galaxy by radial velocity measurement (two X-ray sources match one GC within our search radius), while one X-ray source coincides with a GC resolved by Hubble Space Telescope (HST) images. Another 36 X-ray point sources match probable, but spectroscopically unconfirmed, GC candidates. Description: Chandra ACIS observations of Cen A were made in faint mode, in 1999 Dec 5, 2000 May 17, 2002 Sep 3 and 2003 Sep 14 (UT). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 83 67 Globular clusters in Cen A (NGC 5128) with X-ray sources
See also: J/MNRAS/386/1443 : 2dF study of globular clusters in NGC 5128 (Beasley+, 2008) J/AJ/134/494 : NGC 5128 globular clusters UBVRICMT1 phot. + RV (Woodley+, 2007) J/AJ/132/2187 : MCT1 photometry of NGC 5128 globular clusters (Harris+, 2006) J/AJ/128/723 : Washington Photometry in NGC 5128. II (Harris+, 2004) J/ApJ/600/716 : NGC 5128 Chandra X-ray point sources (Minniti+, 2004) J/ApJS/150/367 : Globular clusters in NGC 5128 (Peng+, 2004) J/A+A/369/812 : UVKs photometry of globular clusters in NGC 5128 (Rejkuba, 2001) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 11 A11 --- Name Globular cluster name (1) 12- 14 A3 --- n_Name [bcd, ] Individual notes (2) 16- 17 I2 h RAh Hour of right ascension (J2000) 19- 20 I2 min RAm Minute of right ascension (J2000) 22- 26 F5.2 s RAs Second of right ascension (J2000) 28 A1 --- DE- Declination sign (J2000) 29- 30 I2 deg DEd Degree of declination (J2000) 32- 33 I2 arcmin DEm Arcminute of declination (J2000) 35- 39 F5.2 arcsec DEs Arcsecond of declination (J2000) 40- 44 F5.2 arcmin Rad Galactocentric radius 46- 50 F5.2 mag Bmag ? B-band magnitude (3) 52- 56 F5.2 mag Vmag ? V-band magnitude (3) 58- 62 F5.2 mag Icmag ? Ic-band magnitude (3) 64- 68 F5.2 mag T1mag ? T1-band magnitude (4) 70- 75 F6.3 mag C-T1 ? C-T1 color index (4) 77- 83 F7.4 [-] [Fe/H] ? [Fe/H] metallicity (5)
Note (1): Globular cluster names significations: GC = GCs from Woodley et al. (2007, Cat. J/AJ/134/494). Clusters confirmed by either radial velocity or HST imaging. (Objects are <[WHB2007] GCNNNN> in Simbad). BTC = candidate GCs from Harris et al. (2004, Cat. J/AJ/128/723, objects are <[HHG2004] NNN> in Simbad) Minniti = candidate clusters from Minniti et al. (2004, Cat. J/ApJ/600/716, objects are <[MRF2004] NNN> in Simbad) K- = candidate GCs (with no radial velocity measurement) from Peng et al. (2004, Cat. J/ApJS/150/367, objects are <[KKF2001] NNN> in Simbad). Note (2): Flags as follows: b = GCs with radial velocity measurement listed as an average weight of all previous measurements in Woodley et al. (2007, Cat. J/AJ/134/494). c = GC 0233 matched both X-ray point source 55 and 56 within 1.5", and one of them within 0.5". d = Minniti et al. (2004, Cat. J/ApJ/600/716) suggest that Minniti 53 is spectroscopically confirmed from Harris et al. (1992AJ....104..613H), yet in this study, we do not find that the position of Minniti 53 matches any previously known GC with a radial velocity measurement within a search radius of 2". We list this object as a candidate GC. Note (3): The BVI data are taken from Peng et al. (2004, Cat. J/ApJS/150/367) and are not dereddened. Note (4): The Washington photometry data are from Harris et al. (2004, Cat. J/AJ/128/723) and are not dereddened. Note (5): The metallicity [Fe/H] was determined from the color (C-T1)0, using a conversion derived by Harris & Harris (2002AJ....123.3108H), which produces an uncertainty in [Fe/H] of ±0.2dex at the metal-poor end and ±0.07dex at the metal-rich end for a typical photometric uncertainty of σ(C-T1)∼0.1, assuming a mean age of τ∼13Gyr.
History: From electronic version of the journal
(End) Emmanuelle Perret [CDS] 04-Nov-2010
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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