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J/A+A/495/733       XMM-Newton spectral survey of M31 disc        (Shaw+, 2009)

An X-ray spectral survey of the disc of M31 with XMM-Newton. Shaw Greening L., Barnard R., Kolb U., Tonkin C., Osborne J.P. <Astron. Astrophys., 495, 733-741 (2009)> =2009A&A...495..733S
ADC_Keywords: Galaxies, nearby ; X-ray sources Keywords: galaxies: individual: M 31 - X-rays: general - X-rays: binaries Abstract: We present the results of a complete spectral survey of the X-ray point sources detected in five XMM-Newton observations along the major axis of M 31 but avoiding the central bulge, aimed at establishing the population characteristics of X-ray sources in this galaxy. We obtained background subtracted spectra and lightcurves for each of the 335 X-ray point sources detected across the five observations from 2002. We also correlate our source list with those of earlier X-ray surveys and radio, optical and infra-red catalogues. Sources with more than 50 source counts are individually spectrally fit in order to create the most accurate luminosity functions of M 31 to date. Description: One observation of each disc field of M 31 was taken using the EPIC pn and MOS cameras on XMM-Newton in January and June 2002 File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tablea1.dat 131 335 Position and spectral properties of each source detected in five archival XMM-Newton observations of the disc of M 31
See also: B/xmm : XMM-Newton Observation Log (XMM-Newton SOC, 2002) J/ApJ/577/738 : M31 Chandra X-ray point sources (Kong+, 2002) J/ApJ/578/114 : Chandra HRC source in M31 (Kaaret, 2002) J/A+A/373/63 : M31 second ROSAT PSPC survey (Supper+, 2001) J/A+A/434/483 : An XMM-Newton survey of M 31 (Pietsch+, 2005) Byte-by-byte Description of file: tablea1.dat
Bytes Format Units Label Explanations
1- 3 I3 --- [SBK2009] [1/335] Source sequential number 5- 6 I2 h RAh Right ascension (J2000) 8- 9 I2 min RAm Right ascension (J2000) 11- 14 F4.1 s RAs Right ascension (J2000) 16 A1 --- DE- Declination sign (J2000) 17- 18 I2 deg DEd Declination (J2000) 20- 21 I2 arcmin DEm Declination (J2000) 23- 24 I2 arcsec DEs Declination (J2000) 26- 33 A8 --- Cam Detection camera(s) 35- 40 A6 --- Fit Best fit model (1) 43 A1 --- n_nH [f] f for fixed nH to 0.1x1022Hatom/cm2 45- 48 F4.2 10+22cm-2 nH ? Hydrogen column density 50- 53 F4.2 10+22cm-2 e_nH ? Error on nH (lower limit) 55- 59 F5.2 10+22cm-2 E_nH ? Error on nH (upper limit) 61- 65 F5.2 keV Gamma/kT ? Gamma or kT value (2) 67- 70 F4.2 keV e_Gamma/kT ? Error on Gamma/kT (lower limit) 72- 77 F6.2 keV E_Gamma/kT ? Error on Gamma/kT (upper limit) 80- 87 F8.3 10+29W Lum ? X-ray luminosity (3) 90- 97 F8.3 10+29W e_Lum ? rms uncertainty on Lum 99 A1 --- --- [/] 100-107 F8.3 10+29W Lum2 ? Second value of X-ray luminosity 109-116 F8.3 10+29W e_Lum2 ? rms uncertainty on Lum2 118-126 A9 --- Class Classification of X-ray source (4) 128-130 I3 --- [PFH2005] ? Source name in Pietsch et al., 2005, Cat. J/A+A/434/483 131 A1 --- r_Class [?a] Reference for classification (5)
Note (1): The best fit model to a source can be as follows: faint = less than 50 source counts (no Gamma/kT value) pl = power law (Gamma) bb = blackbody (kT) br = bremsstrahlung (kT) nsa = neutron star atmosphere (kT) diskbb = disk blackbody (kT) Note (2): Appropriate parameter (photon index, Gamma, or temperature, kT) of the best fit model Note (3): derived from the model parameters with 90% confidence; in 1036erg/s Note (4): Classifications as follows: fg Star = foreground star <fg Star> = foreground star candidate AGN = active galactic nucleus <AGN> = AGN candidate Gal = galaxy GCl = galaxy cluster <SSS> = supersoft source candidate in M 31 SNR = supernova remnant in M 31 <SNR> = supernova remnant candidate in M 31 GlC = source in globular cluster <GlC> = source in globular cluster candidate XRB = X-ray binary in M 31 <hard> = HR2-e_HR2>-0.2 or only HR3 and HR4 defined, and no other classification Note (5): Flag "a" for this work classification, else from [PFH2005] (Pietsch et al., 2005, Cat. J/A+A/434/483)
History: * 16-Sep-2009: From electronic version of the journal * 22-June-2010: in tablea1, [PFH2005] 513 corrected in 512 (for [SBK2009] 153) and [PFH2005] 512 corrected in 513.
(End) Patricia Vannier [CDS] 13-Aug-2009
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