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OBSERVATIONS OF THE SMALL MAGELLANIC CLOUD BY THE VELA 5B X-RAY MONITOR
被引:10
|作者:
WHITLOCK, L
[1
]
LOCHNER, JC
[1
]
机构:
[1] NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771
关键词:
BINARIES;
CLOSE;
MAGELLANIC CLOUDS;
STARS;
INDIVIDUAL (SMC X-1);
X-RAYS;
BURSTS;
D O I:
10.1086/175043
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
We present Vela 5B observations of the Small Magellanic Cloud region obtained during the years 1969-1979. We detect the 3.89 day orbital modulation of SMC X-1 with a false alarm probability of 4.3 x 10(-3) and observe a ''high state'' beginning in 1970 September and lasting similar to 100 days. We also detect three outbursts by a transient source consistent with the position of the candidate Be-neutron star system H0107-750 (=1H 0103-762). These events occur roughly 100 days apart and last for similar to 35 days. No detections of SMC X-2 or SMC X-3 are apparent above a limit of similar to 7 x 10(37) ergs s(-1).
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页码:841 / 844
页数:4
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