Time variations of hard X-rays from Sco X-1 |
| |
| Authors: | M. Matsuoka M. Fujii S. Miyamoto J. Nishimura M. Oda Y. Ogawara S. Hayakawa I. Kasahara F. Makino Y. Tanaka P. C. Agrawal B. V. Sreekantan |
| |
| Affiliation: | (1) Institute of Space and Aeronautical Science, University of Tokyo, Tokyo, Japan;(2) Dept. of Physics, Nagoya University, Nagoya, Japan;(3) Tata Institute of Fundamental Research, Bombay, India |
| |
| Abstract: | Simultaneous hard X-ray and optical observations of Sco X-1 were carried out on 1971 May 1 at Hyderabad, India, when Sco X-1 was optically bright. The X-ray intensity observed by balloon-borne counter telescopes increased in coincidence with optical enhancements, while the plasma temperature derived by fitting the X-ray spectrum in the energy range 20–40 keV to the thermal bremsstrahlung spectrum did not appreciably change over the whole period of observation. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
