Spectral variability in the X-ray pulsar GX 1+4.
Abstract
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.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- August 1976
- DOI:
- 10.1086/182205
- Bibcode:
- 1976ApJ...207L.167B
- Keywords:
-
- Pulsars;
- Stellar Spectra;
- X Ray Sources;
- Energy Spectra;
- Light Curve;
- Proportional Counters;
- Spaceborne Astronomy;
- Astrophysics