Published 1996
| Published
Journal Article
Open
ASCA Observations of Soft X-Ray Transients in Quiescence: X1608-52 and Cen X-4
Abstract
We observed soft X-ray transients, X1608-52 and Cen X-4, in quiescence with ASCA at X-ray luminosities on the order of 10^(32- 33) erg s^(-1).The energy spectra were rather soft for both sources. Blackbody fits to the data required characteristic temperatures of 0.2-0.3 keV and emission regions of ~10 km^2. A conspicuous hard tail remained after fitting Cen X-4 with a blackbody curve. An extremely soft spectrum in quiescence seems to be a common property of soft X-ray transients.
Additional Information
© 1996 Astronomical Society of Japan. Provided by the NASA Astrophysics Data System. Received November 6, 1995. Accepted January 26, 1996. First published online April 1, 1996. The authors thank the ASCA team members for their support. R.H. and K.M. are grateful to N. Shibazaki for stimulating discussions. Y. T. acknowledges the support from the Alexander von Humboldt Foundation.Attached Files
Published - 1997-55.pdf
Files
1997-55.pdf
Files
(949.7 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:7e59e842a6cd3c1175362912044bbe83
|
949.7 kB | Preview Download |
Additional details
- Eprint ID
- 52356
- Resolver ID
- CaltechAUTHORS:20141203-152933487
- Alexander von Humboldt Foundation
- Created
-
2014-12-08Created from EPrint's datestamp field
- Updated
-
2021-11-10Created from EPrint's last_modified field
- Caltech groups
- Space Radiation Laboratory
- Other Numbering System Name
- Space Radiation Laboratory
- Other Numbering System Identifier
- 1997-55