Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ap%26ss.213..135c&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 213, no. 1, p. 135-138
Astronomy and Astrophysics
Astrophysics
1
Pulsars, Pulsed Radiation, Radio Stars, X Rays, Heao 2, High Resolution, Images, Phase Diagrams, Proportional Counters
Scientific paper
Evidence of X-ray pulsations from PSR1951+32 have been obtained in both EINSTEIN IPC (Image Proportional Counter) and HRI (High Resolution Imager) data in our analysis of Einstein Observatory data on CTB 80 area. The phase light curves of these two datasets show similar single peak structure. The period values are significantly different from those predicted by radio observations processed about 7 years later, and shows the spin rate of the pulsar in April 1980 is higher than that in October 1979. Possible explanations for this phenomenon are discussed.
Cheng Lingxiang
Li Tipei
Ma Yugian
Sun Xuejun
Wu Mei
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