Matsuoka, M. ; Fran, M. ; Miyamoto, S. ; Nishimura, J. ; Oda, M. ; Ogawara, Y. ; Ohta, S. ; Hayakawa, S. ; Kasahara, I. ; Makino, F. ; Tanaka, Y. ; Agrawal, P. C. ; Sreekantan, B. V. ; Hatanaka, Y. ; Sreedhar Rao, S. (1972) Simultaneous hard X-ray and optical observations of Sco X-1 Nature, 236 . pp. 53-55. ISSN 0028-0836
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Official URL: http://www.nature.com/nature-physci/journal/v236/n...
Related URL: http://dx.doi.org/10.1038/physci236053a0
Abstract
The correlation between the X-ray and the optical emissions of Sco X-1 provides an important clue to the understanding of the properties of this peculiar astronomical object. Kita-mura et al. 1 found an inverse correlation between the optical luminosity and the temperature as derived from rocket observations of X-rays in the energy range 2 to 20 keV. This suggests an inverse correlation between the optical luminosity and the observed intensity of hard X-rays. On the other hand, Hudson et al. 2 observed X-ray enhancements in the energy range 7.7 to 12.5 keV in coincidence with optical flares, and Pelling et al. 3 found a slow increase of the X-ray intensity in the energy range 20 to 40 keV correlated with the optical emission.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Nature Publishing Group. |
| ID Code: | 87072 |
| Deposited On: | 14 Mar 2012 14:26 |
| Last Modified: | 04 Jul 2012 09:46 |
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