Published 1990
| Version v1
Journal article
X-ray observations of OAO 1657-415 with Tenma and Ginga
Creators
- 1. Nagoya Univ. (Japan). Dept. of Astrophysics
Description
A pulse timing analysis of X-ray pulsar OAO 1657-415 with the Tenma and Ginga satellites is presented. The long-term pulse period history shows a spin-up trend with an average rate of P/P = -10-3 yr-1. An upper limit to ax sin i of 3 lt-s was obtained for the projected semi-major axis for a range of orbital periods of 1 to 6 d. The X-ray spectrum obtained with Ginga was found to be typical of those of other binary X-ray pulsars. (author)
Additional details
Publishing Information
- Journal Title
- Publications of the Astronomical Society of Japan
- Journal Volume
- 42
- Journal Issue
- 6
- Series
- Publ. Astron. Soc. Jpn.
- Journal Page Range
- 785-792
- ISSN
- 0004-6264
- CODEN
- PASJA
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 22074653
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- BINARY STARS; COSMIC X-RAY SOURCES; PULSARS; VARIATIONS; X-RAY SPECTRA
- Descriptors DEC
- COSMIC RADIO SOURCES; COSMIC RAY SOURCES; SPECTRA; STARS