J/A+A/468/49 LMXBs in the bulge of M31 (Voss+, 2007)
A study of the population of LMXBs in the bulge of M31.
Voss R., Gilfanov M.
<Astron. Astrophys., 468, 49-59 (2007)>
=2007A&A...468...49V 2007A&A...468...49V
ADC_Keywords: Galaxies, nearby ; Binaries, X-ray
Keywords: galaxies: individual: M 31 - X-rays: binaries - X-rays: galaxies
Abstract:
We explore the population of X-ray point sources in the bulge of M31
to contrast properties of various subpopulations, such as persistent
and transient sources and primordial LMXBs and dynamically formed
ones.
Based on the data from 26 archival Chandra observations we study the
source content and properties of various subpopulations of X-ray
sources to a maximum distance of 12' from the centre of M 31.
Description:
The analysis in this paper is based on 26 Chandra ACIS observations,
with aimpoints within 10' from M31 centre (00:42:44.31+41:16:09.4).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 96 263 The list of point like X-ray sources within a
distance of 12' from the centre of M 31.
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See also:
J/A+A/373/63 : M31 second ROSAT PSPC survey (Supper+, 2001)
J/ApJ/577/738 : M31 Chandra X-ray point sources (Kong+, 2002)
J/ApJ/578/114 : Chandra HRC source in M31 (Kaaret, 2002)
J/ApJ/609/735 : M31 Chandra X-ray sources (Williams+, 2004)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- [VG2007] Sequential number
5- 9 F5.1 arcsec Dist Distance to the centre of M31
11- 12 I2 h RAh Right ascension (J2000)
14- 15 I2 min RAm Right ascension (J2000)
17- 21 F5.2 s RAs Right ascension (J2000)
23 A1 --- DE- Declination sign (J2000)
24- 25 I2 deg DEd Declination (J2000)
27- 28 I2 arcmin DEm Declination (J2000)
30- 33 F4.1 arcsec DEs Declination (J2000)
35- 39 I5 ct cts Source counts (0.5-8keV)
41- 47 F7.1 ct ctscor Source counts after background subtraction
49- 53 F5.1 ct e_ctscor Statistical error on source counts after
background subtraction
55- 62 E8.3 10-7W LX X-ray luminosity, 0.5-8keV,
assuming 780kpc distance
64- 69 A6 --- Type Source Type (1)
72- 88 A17 --- ID Precise identification and references (2)
90- 95 A6 --- [KGP2002] Source name in Kong et al. (2002, Cat.
J/ApJ/577/738), Williams et al. (2004, Cat.
J/ApJ/609/735) and/or Williams et al.
(2004AJ....128.1588W 2004AJ....128.1588W)
96 A1 --- Flag [KX] Sources not included in [KGP2002] (3)
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Note (1): Source type as follows:
GC = confirmed globular cluster
GCC = globular cluster candidate
PN = planetary nebula
FGS = foreground star
Nova = nova
Rnova = Nova (random match)
EmO = emission line object
RAD = radio source
SNR = supernova remnant
EXT = extended source
t = transient source
Note (2): References for identifications:
B68 = Borngen (1968AN....291...19B 1968AN....291...19BA), [B68] NN in Simbad
B90 = Braun (1990ApJS...72..761B 1990ApJS...72..761B), [B90] NNN in Simbad
Bol = Galleti et al. (2004, Cat. J/A+A/416/917), Bol NNN in Simbad
CFN = Ciardullo et al. (1987ApJ...318..520C 1987ApJ...318..520C, [CFN87] NN in Simbad
CIA = Ciardullo et al. (1989, Cat. J/ApJ/339/53), Ford M 31 NNN
Cra = Crampton et al. (1984ApJ...284..663C 1984ApJ...284..663C), C84 NNN in Simbad
Fan = Fan et al. (2005PASP..117.1236F 2005PASP..117.1236F), [FMZ2005] NN in Simbad
GLG = Gelfand et al. (2004, Cat. J/ApJS/155/89), GLG NNN
MG = Magnier et al. (1995, Cat. J/A+AS/114/215), [MPV95] B-NNN in Simbad
MLA = Meyssonnier et al. (1993, Cat. J/A+AS/102/251), MLA NNNN in Simbad
Mita = Magnier, 1993, Ph.D. Thesis, MIT
PIE = Pietsch et al. (2005A&A...442..879P 2005A&A...442..879P), [PFF2005] WeCAPP-NYYYY-NN
SI = Shafter & Irby (2001ApJ...563..749S 2001ApJ...563..749S), [SI2001] 1997-06 in Simbad)
SIM = Simbad, WSTB 37W135 in Simbad
W2 = Williams et al. (2004AJ....128.1588W 2004AJ....128.1588W)
Note (3): Flags as follows:
K = observed in Kaaret (2002, Cat. J/ApJ/578/114)
X = new source
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History:
* 07-Nov-2007: From electronic version of the journal
(only 64 rows in table2)
* 17-Jan-2008: New version with all rows in table2
(End) Patricia Vannier [CDS] 07-Nov-2007