Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...246l..24m&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 246, no. 1, June 1991, p. L24-L27.
Astronomy and Astrophysics
Astronomy
83
Milky Way Galaxy, Rosat Mission, Seyfert Galaxies, X Ray Sources, Sky Surveys (Astronomy), Spaceborne Astronomy, X Ray Spectra
Scientific paper
As part of the all-sky survey, the Rosat satellite has carried out the first complete scan of the galactic plane. Results obtained from sample areas located in the direction of the Perseus arm of the Galaxy are reported and amount to about 200 sq deg, a surface comparable to that of the entire Einstein galactic plane survey. A total of 225 X-ray sources are detected. Based on cross-correlations with large astronomical catalogs and optical observations of a subset of the sources preliminary conclusions are given regarding the X-ray content of the Milky Way and illustrate the different kinds of emitters contributing to the galactic emission. The discovery of a new Be/X-ray system in the open cluster NGC 663 is also reported.
Belloni Tomaso
Buckley David
Gottwald Manfred
Hasinger Guenter
Motch Ch.
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