Recent results on galactic X-ray sources from the Ariel V sky survey instrument.
Abstract
Preliminary results of X-ray observations with the Ariel 5 sky survey instrument are presented for 14 low-galactic-latitude sources in the region from 220 to 320 deg galactic longitude. Observations are discussed for the sources 2A0655-071 (=MX0656-07), which was previously described as a transient but whose X-ray light curve does not follow the typical pattern of an X-ray transient, and 2A1439-627, which is identified with the supernova remnant G315.4-2.3 (=MSH 14-63). Detections of hard X-ray emission (energy greater than 2 keV) from the dwarf novae SS Cygni and EX Hydrae are also reported. It is shown that EX Hydrae is a good optical candidate for the X-ray source 2A1251-290. A magnetic field of about 1 million gauss is estimated for SS Cygni, along with an accretion rate ranging between approximately 4 x 10 to the 16th g/s in quiescence and about 2 x 10 to the 19th g/s at outburst.
- Publication:
-
X-ray Astronomy
- Pub Date:
- 1979
- Bibcode:
- 1979xras.proc..101W
- Keywords:
-
- Galactic Radiation;
- Light Curve;
- Satellite Observation;
- Sky Surveys (Astronomy);
- Spaceborne Astronomy;
- X Ray Sources;
- Ariel 5 Satellite;
- Dwarf Stars;
- Novae;
- Supernova Remnants;
- Astronomy;
- Galaxy:X-Ray Sources