The X-ray behavior of 3U 1700-37

Details The X-ray behavior of 3U 1700-37 The X-ray behavior of 3U 1700-37

Jan 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...203l..29m&link_type=abstract

Astrophysical Journal, vol. 203, Jan. 1, 1976, pt. 2, p. L29-L33. Research supported by the Science Research Council and Europe

Astronomy and Astrophysics

Astronomy

40

Eclipsing Binary Stars, Light Curve, X Ray Sources, X Ray Stars, Satellite Observation, Spaceborne Astronomy, Spaceborne Telescopes, X Ray Spectra, X Ray Telescopes

Scientific paper

An observation with the Copernicus X-ray telescopes reveals two kinds of flux variability in 3U 1700-37. Fluctuations on a time scale of 1 hour are energy-independent in the 3.5-10.5 keV range, while changes of intensity with binary phase are caused by a variable absorbing column. It is found that there is relatively more absorbing material in the line of sight following the passage of the X-ray source in front of its companion, but comparison with the light curve of Jones et al. (1973) indicates that this must be a variable phenomenon. The length of eclipse during the present observation was significantly shorter than when observed by Jones et al. (1973).

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