Published 1990
| Version v1
Journal article
New X-ray sources near the Galactic bulge region
Description
Nine new X-ray sources were discovered by the Ginga satellite during survey observations near the Galactic bulge region. Seven of the sources were found to have a hardness ratio similar to that of low-mass binary X-ray sources (LMXBs). One source has a hard spectrum with large low-energy absorption similar to that of X-ray pulsars. The other source, GS 1734-275, was found to be variable over a long time. It also exhibited an unusually soft spectrum, and, hence, could be a potential candidate for a black-hole binary. We also found that the EXOSAT new source, GPS 1742-326, has a typical LMXB spectrum. (author)
Additional details
Publishing Information
- Journal Title
- Publications of the Astronomical Society of Japan
- Journal Volume
- 42
- Journal Issue
- 6
- Series
- Publ. Astron. Soc. Jpn.
- Journal Page Range
- L83-L91
- ISSN
- 0004-6264
- CODEN
- PASJA
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 22074654
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- BINARY STARS; BLACK HOLES; COSMIC X-RAY SOURCES; PULSARS; SOFT X RADIATION; X-RAY SPECTRA
- Descriptors DEC
- COSMIC RADIO SOURCES; COSMIC RAY SOURCES; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; RADIATIONS; SPECTRA; STARS; X RADIATION