OBSERVATIONS OF THE SMALL MAGELLANIC CLOUD BY THE VELA 5B X-RAY MONITOR

Citation
L. Whitlock et Jc. Lochner, OBSERVATIONS OF THE SMALL MAGELLANIC CLOUD BY THE VELA 5B X-RAY MONITOR, The Astrophysical journal, 437(2), 1994, pp. 841-844
Citations number
25
Categorie Soggetti
Astronomy & Astrophysics
Journal title
ISSN journal
0004637X
Volume
437
Issue
2
Year of publication
1994
Part
1
Pages
841 - 844
Database
ISI
SICI code
0004-637X(1994)437:2<841:OOTSMC>2.0.ZU;2-X
Abstract
We present Vela 5B observations of the Small Magellanic Cloud region o btained during the years 1969-1979. We detect the 3.89 day orbital mod ulation 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 simil ar to 100 days. We also detect three outbursts by a transient source c onsistent with the position of the candidate Be-neutron star system H0 107-750 (=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 a pparent above a limit of similar to 7 x 10(37) ergs s(-1).