Spectral variability in the X-ray pulsar GX 1 + 4

Details Spectral variability in the X-ray pulsar GX 1 + 4 Spectral variability in the X-ray pulsar GX 1 + 4

Aug 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...207l.167b&link_type=abstract

Astrophysical Journal, vol. 207, Aug. 1, 1976, pt. 2, p. L167-L169. Research supported by the University of Maryland and NASA.

Astronomy and Astrophysics

Astronomy

38

Pulsars, Stellar Spectra, X Ray Sources, Energy Spectra, Light Curve, Proportional Counters, Spaceborne Astronomy

Scientific paper

Observations of the galactic-center-region hard X-ray source GX 1 + 4 by the GSFC X-ray spectroscopy experiment on OSO-8 confirm that GX 1 + 4 is a slow X-ray pulsar. The amount of absorption by cold matter in the spectrum of GX 1 + 4 varies significantly within a 24-hour period, which is typical of many X-ray binary systems. The light curve for the pulsations from GX 1 + 4 appears to be energy-dependent.

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