J/A+A/558/A3 XMM-Newton point-source catalogue of the SMC (Sturm+, 2013)
The XMM-Newton survey of the Small Magellanic Cloud:
The X-ray point-source catalogue.
Sturm R., Haberl F., Pietsch W., Ballet J., Hatzidimitriou D.,
Buckley D.A.H., Coe M., Ehle M., Filipovic M.D., La Palombara N., Tiengo A.
<Astron. Astrophys. 558, A3 (2013)>
=2013A&A...558A...3S 2013A&A...558A...3S
ADC_Keywords: Surveys ; Magellanic Clouds ; X-ray sources
Keywords: galaxies: Small Magellanic Cloud - galaxies: stellar content -
X-rays: general - X-rays binaries - catalogs
Description:
The XMM-Newton survey of the Small Magellanic Cloud (SMC) yields a
complete coverage of the bar and eastern wing in the 0.2-12.0keV band.
This catalogue comprises 3053 unique X-ray point sources and sources
with moderate extent that have been reduced from 5236 individual
detections found in observations between April 2000 and April 2010.
Sources have a median position uncertainty of 1.3" (1σ) and
limiting fluxes down to ∼1*10-14erg/s/cm2 in the 0.2-4.5keV band,
corresponding to 5*1033erg/s for sources in the SMC. Sources have
been classified using hardness ratios, X-ray variability, and their
multi-wavelength properties.
In addition to the main-field (5.58deg2) available outer fields have
been included in the catalogue, yielding a total field area of
6.32deg2.
X-ray sources with high extent (>40", e.g. supernova remnants and
galaxy cluster) have been presented by Haberl et al. (2012,
Cat. J/A+A/545/A128)
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
smc_src.dat 454 3053 Source catalogue
smc_src.fit 2880 228 Source catalogue in FITS format
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See also:
B/xmm : XMM-Newton Observation Log (XMM-Newton SOC, 2012)
IX/41 : XMM-Newton Serendipitous Source Cat. 2XMMi-DR3 (XMM-SSC, 2010)
J/A+A/545/A128 : SMC XMM-Newton images (Haberl+, 2012)
Byte-by-byte Description of file: smc_src.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq [1/3312] Unique source number
6- 21 A16 --- XMMU Unique source name (JHHMMSS.s+DDMMSS)
23- 24 I2 --- Ndet [1/34] Number of detections
26- 27 I2 --- Nobs [1/36] Number of observations
29- 40 E12.6 --- srcML Source detection likelihood (MLdet)
42- 50 F9.6 deg RAdeg Mean source right ascension (J2000)
52- 61 F10.6 deg DEdeg Mean source declination (J2000)
63- 67 F5.2 arcsec ePos Mean error on position
69- 80 E12.6 mW/m2 F1 Mean flux in 0.2-0.5keV band (erg/cm2/s)
82- 93 E12.6 mW/m2 e_F1 Mean error on F1
95-106 E12.6 mW/m2 F2 Mean flux in 0.5-1.0keV band (erg/cm2/s)
108-119 E12.6 mW/m2 e_F2 Mean error on F2
121-132 E12.6 mW/m2 F3 Mean flux in 1.0-2.0keV band (erg/cm2/s)
134-145 E12.6 mW/m2 e_F3 Mean error on F3
147-158 E12.6 mW/m2 F4 Mean flux in 2.0-4.5keV band (erg/cm2/s)
160-171 E12.6 mW/m2 e_F4 Mean error on F4
173-184 E12.6 mW/m2 F5 Mean flux in 4.5-12.0keV band (erg/cm2/s)
186-197 E12.6 mW/m2 e_F5 Mean error on F5
199-210 E12.6 mW/m2 Ftot Mean flux in 0.2-12.0keV band (erg/cm2/s)
212-223 E12.6 mW/m2 e_Ftot Mean error on F
225-236 E12.6 mW/m2 Fxid Mean flux in 0.2-4.5keV band (erg/cm2/s)
238-249 E12.6 mW/m2 e_Fxid Mean error on Fxid
251-262 E12.6 mW/m2 Fmax ? Maximum 0.2-4.5keV flux of all observations
264-275 E12.6 mW/m2 e_Fmax ? Error on Fmax
277-288 E12.6 mW/m2 Fmin ? Minimum/upper-limit 0.2-4.5keV flux
290-301 E12.6 mW/m2 e_Fmin ? Error on Fmin
303-311 F9.6 --- HR1 [-1/1]? Hardness ratio of bands 1 and 2 (1)
313-320 F8.6 --- e_HR1 ? Mean error on HR1
322-330 F9.6 --- HR2 [-1/1]? Hardness ratio of bands 2 and 3 (1)
332-339 F8.6 --- e_HR2 ? Mean error on HR2
341-349 F9.6 --- HR3 [-1/1]? Hardness ratio of bands 3 and 4 (1)
351-358 F8.6 --- e_HR3 ? Mean error on HR3
360-368 F9.6 --- HR4 [-1/1]? Hardness ratio of bands 4 and 5 (1)
370-377 F8.6 --- e_HR4 ? Mean error on HR4
379-383 F5.2 arcsec Ext ? Total band extent
385-389 F5.2 arcsec e_Ext ? Error on Ext
391-398 F8.2 --- extML ? Likelihood of the extent ((MLext)
400-403 F4.2 --- Cst [0/1]? Constant probability (2)
405-411 F7.2 --- V ? Variability between observations
413-418 F6.2 --- S ? Significance of V
420-428 A9 --- Class Classification of X-ray source (3)
430-454 A25 --- Ident Identification of X-ray or optical source
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Note (1): Hardness ratios compare the count rate in two adjacent energy
bands and are defined as HRi=(R(i+1)-R(i))/(R(i+1)+R(i)) where R(i)
is the count rate of band i:
1 = 0.2-0.5keV
2 = 0.5-1.0keV
3 = 1.0-2.0keV
4 = 2.0-4.5keV
5 = 4.5-12.0keV
Note (2): Kolmogorov-Smirnov test probability that the source is constant
within the observation. For multiple detections, the minimum of all
observations is given.
Note (3): Source class of identified and classified sources are
(uncertain cases are marked with a question mark ?), as follows:
fg-star = foreground star
<fg-star> = candidate foreground star
HMXB = high-mass X-ray binary in the SMC
= candidate high-mass X-ray binary in the SMC
AGN = active galactic nucleus
= candidate counterparts:
radio (r),
Chandra X-ray source (x),
infrared (i),
optical (o), the later being uncertain
galaxy = galaxy
Cl* = star cluster
INS = isolated neutron star
PWN = pulsar wind nebula
MQ = micro quasar
SMC-star = star in the SMC
SSS = supersoft X-ray source
= candidate supersoft X-ray source
AXP = anomalous X-ray pulsar
ClG = galaxy cluster
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Acknowledgements:
Richard Sturm, rsturm( at )mpe.mpg.de
References:
Haberl et al., 2012A&A...545A.128H 2012A&A...545A.128H, Cat. J/A+A/545/A128
(End) Richard Sturm [MPE] , Emmanuelle Perret [CDS] 29-Jul-2013