Measurements of weak X-ray sources by ANS

Details Measurements of weak X-ray sources by ANS Measurements of weak X-ray sources by ANS

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....81..185b&link_type=abstract

Astronomy and Astrophysics, vol. 81, no. 1-2, Jan. 1980, p. 185-188.

Astronomy and Astrophysics

Astronomy

3

Astronomical Netherlands Satellite, X Ray Sources, Luminous Intensity, Spaceborne Astronomy

Scientific paper

Data from the Astronomical Netherlands Satellite (ANS) on intensity and in some cases on spectrum and position are reported for 22 weak X-ray sources selected from the 3 U-catalog (Giacconi et al., 1974). Five of them are extragalactic, the remaining 17 presumably galactic due to their location close to the galactic plane. The data includes ANS observing periods and measured intensities, and for some stars, three sigma upper limits of intensity, or spectral parameters derived by a least squares fitting technique using power law and thermal spectrum models. Measurements of intensity of two supernova remnants, Cas A and Tycho, are also presented.

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