Pulse-period changes of X-ray pulsars measured with Hakucho and Tenma. (original) (raw)
NASA/ADS
;
- Hayakawa, S. ;
- Kii, T. ;
- Sato, N. ;
- Ikegami, T. ;
- Kawai, N. ;
- Makishima, K. ;
- Matsuoka, M. ;
- Mitani, K. ;
- Murakami, T. ;
- Oda, M. ;
- Ohashi, T. ;
- Tanaka, Y. ;
- Kitamoto, S.
Abstract
Eight X-ray pulsars, Her X-1, Cen X-3, 4U 1626-67, OAO 1657-415, A0535+26, Vela X-1, 4U 1538-52, and GX 301-2, have been observed from Hakucho and Tenma. The pulse periods of all these X-ray pulsars measured with Hakucho and Tenma between March 1979 and October 1983 are summarized together with those of 4U 1700-37 and 4U 1907+09, the pulsations of which were newly discovered by Tenma observations. Several instances of remarkable behavior in pulse-period change are revealed both for the wind-fed and disk-fed pulsars.
Publication:
Publications of the Astronomical Society of Japan
Pub Date:
1984
Bibcode:
Keywords:
- Astronomical Satellites;
- Japanese Spacecraft;
- Pulsars;
- X Ray Binaries;
- X Ray Sources;
- Accretion Disks;
- Periodic Variations;
- Pulse Rate;
- Stellar Winds;
- Variable Stars;
- Astronomy;
- Period Changes:X-Ray Pulsars;
- X-Ray Pulsars:Period Changes