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J/A+A/449/425    Optical identification of ROSAT-FSC sources (Mickaelian+, 2006)

Optical identification of ROSAT-FSC sources. Mickaelian A.M., Hovhannisyan L.R., Engels D., Hagen H.-J., Voges W. <Astron. Astrophys. 449, 425 (2006)> =2006A&A...449..425M
ADC_Keywords: X-ray sources ; Cross identifications ; Photometry, photographic Keywords: surveys - X-rays: general - X-rays: galaxies - X-rays: stars - X-rays: binaries - catalogs Description: The Byurakan/Hamburg/ROSAT Catalogue (BHRC) of the optical identifications of X-ray sources is presented. The BHRC includes all 2791 sources from the ROSAT-FSC (IX/29) with |b|>30, DEC>0 and ROSAT count rate CR>0.04cts/s. The optical identifications were carried out by means of the Hamburg Quasar Survey (HQS) digitized spectroscopic plates, the DSS1 and DSS2 (blue, red, and IR) images, and other available data. We managed to identify 97% of sources (2696 sources) that are associated with 3202 optical objects. 2248 X-ray sources have a single optical counterpart, 144 have a double or multiple optical counterpart (binaries, galaxy groups etc.), and 304 have ambiguous identifications. The table gives all available multiwavelength data for the identified sources. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 344 3202 A catalog of Hamburg/ROSAT-FSC identifications for δ>0, |b|>30 and X-ray counts>0.04ct/s: 3202 objects for 2696 ROSAT sources.
See also: IX/29 : ROSAT All-Sky Survey Faint Source Catalog (Voges+ 2000) I/284 : The USNO-B1.0 Catalog (Monet+ 2003) J/A+AS/127/145 : Hamburg/RASS Cat. of optical ident. (HRC) (Bade+, 1998) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 4 A4 --- --- [1RXS] 6- 21 A16 --- 1RXS ROSAT name (Cat. IX/29) 23- 25 I3 arcsec ePos ROSAT positional error 27- 33 F7.4 ct/s CR ROSAT count rate 35- 41 F7.4 ct/s e_CR ? ROSAT count rate error 43- 47 F5.2 --- HR1 ? ROSAT hardness ratio 1 (0.1-0.4,0.5/2.0keV) 49- 52 F4.2 --- e_HR1 ? ROSAT hardness ratio 1 error 54- 58 F5.2 --- HR2 ? ROSAT hardness ratio 2 (0.5-0.9,0.9-2.0 keV) 60- 63 F4.2 --- e_HR2 ? ROSAT hardness ratio 2 error 65 A1 --- m_1RXS [a-e] Optical counterpart component 67- 68 I2 h RAh DSS2 (red) right ascension (J2000) 70- 71 I2 min RAm DSS2 (red) right ascension (J2000) 73- 77 F5.2 s RAs DSS2 (red) right ascension (J2000) 79 A1 --- DE- Declination sign (J2000) 80- 81 I2 deg DEd DSS2 (red) declination (J2000) 83- 84 I2 arcmin DEm DSS2 (red) declination (J2000) 86- 89 F4.1 arcsec DEs DSS2 (red) declination (J2000) 91- 95 F5.1 arcsec Opt-X Distance between optical and X-ray positions 97- 99 F3.1 --- O-Xr Relative distance optical/X-ray (Opt-X/ePos) 101-105 F5.2 mag OmagM ? MAPS O magnitude 107-111 F5.2 mag (O-E)M ? MAPS O-E colour index 113-116 I4 mas/yr pm ? USNO-B1.0 total proper motion 118-122 F5.2 mag Omag ? USNO-B1.0 O magnitude (mean of DSS1 blue and DSS2 blue) 124-128 F5.2 mag Emag ? USNO-B1.0 E magnitude (mean of DSS1 red and DSS2 red) 130-134 F5.2 mag O-E ? USNO-B1.0 O-E colour (mean of DSS1 O-E and DSS2 O-E) 136-140 F5.2 mag Imag ? USNO-B1.0 I magnitude (DSS2 IR) 142-146 F5.2 mag Dmag ? USNO-B1.0 magnitude difference between DSS2 and DSS1 (mean of blue and red) 148-160 A13 --- Class Classification of the objects (1) 162-180 A19 --- Com Comments on the objects (2) 182-198 A17 --- OptType Associations with known optical objects: types (3) 200-236 A37 --- ONames Optical associations: names of the objects 238-241 F4.1 arcsec OdistO ? Optical associations: distance between the catalog and DSS2 red (our) positions 243-247 F5.1 arcsec OdistX ? Optical associations: distance between the catalog and ROSAT positions 249-261 A13 --- Type Optical associations: classification 262-266 F5.2 mag mag ? Optical associations: catalog magnitudes (typically B magnitude) 267 A1 --- n_mag [gR] Band in not B magnitude 269-275 F7.5 --- z ? Optical associations: redshift 277-288 A12 --- Aband Non-optical associations: wavelength domain (radio, IR, X-ray) 290-332 A43 --- ANames Non-optical associations: names of sources 334-338 F5.1 arcsec AdistO ? Non-optical associations: distance between the source and DSS2 red (our) positions 340-344 F5.1 arcsec AdistX ? Non-optical associations: distance between the source and ROSAT positions
Note (1): Classification based on DSS images, HQS spectra, MAPS and USNO-B1.0, SIMBAD/NED/AGN/WD/CV associations. Note (2): binary and multiple stars; pairs, groups and clusters of galaxies and QSOs; variability, etc. Note (3): Associations from SIMBAD, NED, and AGN/WD/CV catalogs
Acknowledgements: Areg Mickaelian, aregmick(at)
(End) Areg Mickaelian [BAO], Patricia Vannier [CDS] 21-Feb-2006
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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