Observations of the Small Magellanic Cloud by the VELA 5B X-Ray Monitor
Abstract
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 ~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 ~35 days. No detections of SMC X-2 or SMC X-3 are apparent above a limit of ~7 x 10^37^ ergs s^-1^.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- December 1994
- DOI:
- 10.1086/175043
- Bibcode:
- 1994ApJ...437..841W
- Keywords:
-
- Magellanic Clouds;
- X Ray Astronomy;
- X Ray Binaries;
- X Ray Spectra;
- Astronomical Maps;
- Astronomical Observatories;
- Neutron Stars;
- Satellite-Borne Instruments;
- Stellar Luminosity;
- Astrophysics;
- STARS: BINARIES: CLOSE;
- GALAXIES: MAGELLANIC CLOUDS;
- STARS: INDIVIDUAL ALPHANUMERIC: SMC X-1;
- X-RAYS: BURSTS;
- X-RAYS: STARS