Observation of a faint glow of scattered sunlight from the dust trail of the Leonid parent comet 55P / Tempel-Tuttle

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概要

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• The faint glow at the direction of the dust trail of comet 55P/Tempel-Tuttlewas discovered during the Leonid meteor shower in 1998 (ΔMA = 0.136) by the photometricobservations at Mauna Kea, Hawaii (Nakamura et al. (2000)). This is considered as the scatteredsunlight by the sub-millimeter size dust particles located along the orbit of 55P/Tempel-Tuttle.To examine the orbital distribution of the dust particles, we observed the direction of the dusttrail on 2001 November 19 (ΔMA = O.705), at Akeno Observatory (138d30m(E), 35d47m(N),900m, Institute for Cosmic Ray Research, University of Tokyo, Japan) . The instruments were thesame one as Nakarnura et al. (2000) used. From our data, there is no prominent evidence detectedat that direction. Based on these two data obtained in 1998 and 2001, we discuss the spatialdistribution of the dust material observed as the dust tube in visible wavelength.

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著者

• Fumihiko Usui

  Department Of Earth Science And Astronomy Graduate School Of Arts And Scieces University Of Tokyo

• Masateru Ishiguro

  Planetary Science Division The Institute Of Space And Astronautical Science

関連論文

• Observation of a faint glow of scattered sunlight from the dust trail of the Leonid parent comet 55P / Tempel-Tuttle

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