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within S Kitamoto Remove this filter Science, Humanities and Social Sciences, multidisciplinary Remove this filter

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  1. No Access

    Article

    Discovery of an unusual hard X-ray source in the region of supernova 1987A

    We have discovered a new hard X-ray source near supernova 1987 A, in the Large Magellanic Cloud, from the X-ray astronomy satellite Ginga. The present error box of 0.2° × 0.3° includes the supernova. The energy ...

    T. Dotani, K. Hayashida, H. Inoue, M. Itoh, K. Koyama, F. Makino, K. Mitsuda… in Nature (1987)

  2. No Access

    Article

    New observations of the cyclotron absorption feature in Hercules X–1

    ALTHOUGH neutron stars are generally believed to be born with intense (1011–1013 G) magnetic fields1,2, which then gradually decay3, measurements of their field strengths remain uncertain. In the special case of ...

    T. Mihara, K. Makishima, T. Ohashi, T. Sakao, M. Tashiro, F. Nagase, Y. Tanaka… in Nature (1990)