Photometry of slow X-ray pulsars. III. The GX 17+2 candidate.
Abstract
The optical pulsations from the faint star assumed to be the optical counterpart of the intense X-ray source GX 17 + 2 are analyzed. The X-ray source is of interest because of its associated radio emission, and the 1913 sec periodic modulation of the X-ray flux, which makes the source the slowest X-ray pulsar yet observed. The photoelectric photometry of the star provides no evidence for variability. The analysis indicates that any binary period in GX 17 + 2 is most likely longer than two days.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- January 1978
- DOI:
- 10.1086/155822
- Bibcode:
- 1978ApJ...219..613M
- Keywords:
-
- Pulsars;
- Stellar Spectrophotometry;
- X Ray Stars;
- Binary Stars;
- Electrophotometers;
- Radio Sources (Astronomy);
- Astrophysics;
- Periods:X-Ray Pulsars;
- Photometry:X-Ray Pulsars;
- X-Ray Pulsars: Optical Counterparts