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Discovery of a large X-ray burst from an X-ray nova, Centaurus X-4
The Astrophysical Journal1980Vol. 240, pp. L137–L137
Citations Over TimeTop 15% of 1980 papers
M. Matsuoka, H. Inoue, K. Koyama, K. Makishima, T. Murakami, M. Oda, Y. Ogawara, T. Ohashi, N. Shibazaki, Yasuyuki Tanaka, I. Kondò, S. Hayakawa, H. Kunieda, Fumiaki Makino, K. Masai, F. Nagase, Yuzuru Tawara, S. Miyamoto, H. Tsunemi, K. Yamashita
Abstract
The X-ray satellite Hakucho detected an X-ray burst from the nova-like transient Cen X-4 on May 31, 1979. The time profile and the spectral softening of the burst show the same properties as those of a type I X-ray burst. The peak intensity of approximately 25 times the Crab in the energy range 1.5-12 keV is the strongest X-ray burst observed so far. The burst occurred during a nova-like outburst which is similar to one observed in 1969. The present discovery suggests that a soft transient source such as Cen X-4 comprises a neutron star and a late dwarf and can be an X-ray burster.
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