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A new mode of X-ray bursts from MXB1730–335

Nature volume 283, pages 358–360 (1980)Cite this article

Abstract

We report here on the unusual behaviour of MXB1730–335, the rapid burster1 as observed by the X-ray astronomy satellite Hakucho between 8 and 22 August 19792. MXB1730–335 is a unique burst source which generates rapidly repetitive bursts lasting between a few and tens of seconds. In the present observations, however, its behaviour was very different to that previously observed, in that the bursts of a trapezoidal profile were dominant. The profile is characterised by a flat top lasting between 30s and 10 min. A long train of such trapezoidal bursts was seen for the first time and clearly revealed a new mode of the rapid burster.

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Authors and Affiliations

  1. Institute of Space and Aeronautical Science, University of Tokyo, Meguro, Tokyo, 153

    H. Inoue, K. Koyama, K. Makishima, M. Matsuoka, T. Murakami, M. Oda, Y. Ogawara, T. Ohashi, N. Shibazaki, Y. Tanaka & Y. Tawara

  2. Institute for Cosmic Ray Research, University of Tokyo, Tanashi, Tokyo, 188

    I. Kondo

  3. Department of Astrophysics, Faculty of Science, Nagoya University, Chikusa, Nagoya, 464

    S. Hayakawa, H. Kunieda, F. Makino, K. Masai & F. Nagase

  4. Department of Physics, Faculty of Science, Osaka University, Toyonaka, Osaka, 560, Japan

    S. Miyamoto, H. Tsunemi & K. Yamashita

Authors
  1. H. Inoue
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  2. K. Koyama
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  3. K. Makishima
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  4. M. Matsuoka
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  5. T. Murakami
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  6. M. Oda
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  7. Y. Ogawara
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  8. T. Ohashi
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  9. N. Shibazaki
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  10. Y. Tanaka
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  11. Y. Tawara
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  12. I. Kondo
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  13. S. Hayakawa
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  14. H. Kunieda
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  15. F. Makino
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  16. K. Masai
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  17. F. Nagase
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  18. S. Miyamoto
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  19. H. Tsunemi
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  20. K. Yamashita
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Inoue, H., Koyama, K., Makishima, K. et al. A new mode of X-ray bursts from MXB1730–335. Nature 283, 358–360 (1980). https://doi.org/10.1038/283358a0

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  • DOI: https://doi.org/10.1038/283358a0

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