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Astron. Astrophys. 349, 389-405 (1999)
![]() Available formats: HTML | PDF | (gzipped) PostScript The ROSAT all-sky survey bright source catalogue
W. Voges,
B. Aschenbach,
Th. Boller,
H. Bräuninger,
U. Briel,
W. Burkert,
K. Dennerl,
J. Englhauser,
R. Gruber,
F. Haberl,
G. Hartner,
G. Hasinger,
M. Kürster,
E. Pfeffermann,
W. Pietsch,
P. Predehl,
C. Rosso,
J.H.M.M. Schmitt,
J. Trümper and
H.U. Zimmermann
Received 1 March 1999 / Accepted 25 June 1999 Abstract We present the ROSAT All-Sky Survey Bright Source Catalogue
(RASS-BSC, revision 1RXS) derived from the all-sky survey performed
during the first half year (1990/91) of the ROSAT mission. 18,811
sources are catalogued (i) down to a limiting ROSAT PSPC count-rate of
0.05 cts s-1 in the 0.1-2.4 keV energy band, (ii) with a
detection likelihood of at least 15 and (iii) at least 15 source
counts. The 18,811 sources underwent both an automatic validation and
an interactive visual verification process in which for 94% of the
sources the results of the standard processing were confirmed. The
remaining 6% have been analyzed using interactive methods and these
sources have been flagged. Flags are given for (i) nearby sources;
(ii) sources with positional errors; (iii) extended sources; (iv)
sources showing complex emission structures; and (v) sources which are
missed by the standard analysis software. Broad band (0.1-2.4 keV)
images are available for sources flagged by (ii), (iii) and (iv). For
each source the ROSAT name, position in equatorial coordinates,
positional error, source count-rate and error, background count-rate,
exposure time, two hardness-ratios and errors, extent and likelihood
of extent, likelihood of detection, and the source extraction radius
are provided. At a brightness limit of 0.1 cts s-1 (8,547
sources) the catalogue represents a sky coverage of 92%. The RASS-BSC,
the table of possible identification candidates, and the broad band
images are available in electronic form (Voges et al. 1996a) via
http://wave.xray.mpe.mpg.de/rosat/catalogues/rass-bsc
. 1 Key words: catalogs Present address: Astrophysikalisches Institut Potsdam, An der Sternwarte 16, 14482 Potsdam, Germany Present address: ESO-La Silla, Alonso de Cordova 3107, Vitacura, Casilla 19001, Santiago 19, Chile Present address: Hamburger Sternwarte, Gojenbergsweg 112, 21029 Hamburg, Germany Send offprint requests to: W. Voges (wvoges@mpe.mpg.de) Online publication: September 2, 1999 |