J/A+A/368/835 Soft X-ray sources in the Galactic Center region (Sidoli+, 2001)
A catalogue of soft X-ray sources in the Galactic Center region.
Sidoli L., Belloni T., Mereghetti S.
<Astron. Astrophys. 368, 835 (2001)>
=2001A&A...368..835S 2001A&A...368..835S
ADC_Keywords: X-ray sources
Keywords: catalogues - galaxy: center - X-rays: general - X-rays: stars
Abstract:
We present a catalogue of 107 point-like X-ray sources derived from a
systematic analysis of all the ROSAT PSPC observations of the galactic
center region performed in 1992-1993. Besides SgrA*, the massive black
hole at the galactic center, 41 X-ray sources have been positionally
associated with already classified objects. Twenty are identified with
foreground stars and five with known Low Mass X-ray Binaries. The
majority of the sources in our catalogue still remains unidentified.
They are hard and/or severely absorbed and probably represent a large
population of X-ray binaries located in the galactic center region,
accreting at low accretion rates, and still largely unknown.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 166 24 X-ray sources not detected
table3.dat 158 107 The ROSAT PSPC Catalogue in the Galactic Center
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See also:
IX/30 : Second ROSAT PSPC Catalog (ROSAT, 2000)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 17 A17 --- Source Source name
19- 37 A19 --- BibCode Reference BibCode
39- 56 A18 --- Aut Author's name for the BibCode
58-166 A109 --- Com Comments
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- [SBM2001] Object name
5- 6 I2 --- [PT94] ? Source number in Predehl & Truemper
(1994A&A...290L..29P 1994A&A...290L..29P)
9- 10 I2 h RAh Right ascension (J2000)
12- 13 I2 min RAm Right ascension (J2000)
15- 18 D4.1 s RAs Right ascension (J2000)
20 A1 --- DE- Declination sign (J2000)
21- 22 I2 deg DEd Declination (J2000)
24- 25 I2 arcmin DEm Declination (J2000)
27- 31 F5.2 arcsec DEs Declination (J2000)
33- 37 F5.2 arcsec e_Pos rms uncertainty on position
38 A1 --- l_CountRate Limit flag on CountRate
39- 44 F6.2 ct/ks CountRate Count rate in the total energy band
(0.1-2.4 keV)
46- 50 F5.3 ct/ks e_CountRate ? rms uncertainty on CountRate
51- 53 A3 --- n_CountRate Note on CountRate (1)
56 A1 --- l_Log(S/H) Limit flag on Log(S/H)
57- 64 F8.5 --- Log(S/H) ? Softness ratio (0.1-0.4keV)/(0.9-2.4keV)
65- 69 F5.3 --- e_Log(S/H) ? rms uncertainty on Log(S/H)
71 A1 --- l_Log(M/H) Limit flag on Log(M/H)
72- 79 F8.5 --- Log(M/H) ? Softness ratio (0.5-0.9keV)/(0.9-2.4keV)
81- 86 F6.4 --- e_Log(M/H) ? rms uncertainty on Log(M/H)
88-187 A100 --- Notes Notes (2)
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Note (1): Sources not detected in the total (T: 0.1-2.4keV) energy band,
but only in a partial (S: 0.1-0.4keV, M: 0.5-0.9keV or H: 0.9-2.4keV)
band, are labelled with a capital letter.
Note (2): In the notes, the probable identifications based on the
cross-correlation with SIMBAD database is reported; in parenthesis we
indicate the offset, spectral type, B and V magnitude for stars.
The meaning of the other symbols is:
l* = Eclipsing Binary of Algol type
V* = variable star
bL* = Eclipsing Binary of β Lyr type
*i* = star in double system
Em* = emission line star
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History:
From electronic version of the journal and prepared via OCR at CDS.
Some corrections made in table3.dat on 31-Aug-2001
(End) James Marcout, Patricia Bauer [CDS] 17-May-2001