RXTE/ASM observations of PSR B1259-63 near the 1997 periastron passage find no emission brighter than appximately 10 times that detected by ASCA during the 1994 periastron encounter, demonstrating that the pulsar is unlikely to have undergone even brief episodes of accretion.
Neutron Stars and Pulsars: Thirty Years after the Discovery
- Pub Date:
- 2 Postscript pages, 2 eps figures. To appear in Proceedings of the Symposium "Neutron Stars and Pulsars", held in Tokyo, Japan, November 17-20, 1997. Universal Academy Press, in press