Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Kimihiko Nishioka"'
Autor:
Kimihiko Nishioka
Publikováno v:
Icarus. 370:114649
The striations in the Type II tail of the comets are called striae. The origin of the striae has been poorly understood. We present a new dynamical model to explain the structure of the striae observed at comets Hale-Bopp (C/1995O1), West (C/1975V1),
Autor:
Kimihiko Nishioka
Publikováno v:
Icarus. 134:24-34
Autor:
Jun-ichi Watanabe, Kimihiko Nishioka
Publikováno v:
International Astronomical Union Colloquium. 126:253-256
The unique morphology of the synchronic band in the cometary dust tail is explained by finite-lifetime fragment model (Nishioka and Watanabe, 1990). However, this model needs a severe restriction on the lifetime of the dust fragments;25-70 days (r =
Autor:
Jun-Ichi Watanabe, Kimihiko Nishioka
Publikováno v:
Icarus. 87:403-411
A finite lifetime fragment model is proposed for the formation of synchronic bands in dust tails of comets. Applying the simultaneous fragmentation model proposed by Sekanina and Farrell (1980) to three comets (Mrkos, Seki-Lines, West), we found the
Autor:
Tadatoshi Takahashi, Yukio Kozuka, Masaji Saito, Masayoshi Kojima, Kimihiko Nishioka, Takao Saito, I. Konno
Publikováno v:
Journal of Geophysical Research. 100:9549
Comets P/Brorsen-Metcalf and C/Okazaki-Levy-Rudenko appeared successively in 1989 and displayed various disturbances of their magnetospheres. We observed two cases of a phenomenon in which a disconnection event of the cometary plasma tail (on August
Publikováno v:
Icarus. 47:351-360
The shape and intensity distribution of tails for several large comets are estimated on the basis of grain properties in the solar radiation field. The following results are obtained: (1) The ratio of the maximum radiation pressure force to the gravi
Autor:
Kimihiko Nishioka, Makoto Watanabe
Publikováno v:
Journal of the Physical Society of Japan. 45:1670-1675
Absorption spectra of RbF–CsF solid solutions were measured at liquid nitrogen temperature in the energy region 9–12 eV with the purpose to assign the sharp peaks near the fundamental absorption edge in CsF. The first peaks in RbF at 9.46 eV and
Autor:
Makoto Watanabe, Kimihiko Nishioka
Publikováno v:
Japanese Journal of Applied Physics. 17:201
The absorption coefficients of cubic LiCl, LiBr, NaCl, NaBr and NaI, and hexagonal LiI are measured in the 5–40 eV region at room and liquid nitrogen temperatures by the use of synchrotron radiation. The purpose is to refine the existing data above
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