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Wide Field Imaging of Ion Tail of Comet C/Hale–Bopp |
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| Authors: | Kinoshita D Watanabe J Fukushima H Sekiguchi T Yamamoto N Abe S |
| Institution: | (1) Department of Physics, University of Tohoku, Aoba, Sendai 980-77, Japan;(2) National Astronomical Observatory, Osawa, Mitaka, Tokyo 181, Japan;(3) Graduate University for Advanced Studies, Osawa, Mitaka, Tokuo 181, Japan;(4) Department of Physics, Science University of Tokyo, Shinjuku, Tokyo 162, Japan;(5) Solar-Terrestrial Environment Laboratory, University of Nagoya, Toyohashi, Japan |
| Abstract: | A sequential imaging observation of the ion tail of Comet C/Hale-Bopp 1995O1 was carried out in February–March 1997 with a wide-field CCD imaging camera using narrow band filters for two ion species; CO+ and H2O+ along with those for blue and red continuum. From the surface photometry of the ion tail of two species, we derived a relationship between plasma density and distance from the nucleus. The local velocity of the ion flow as a function of the distance from the nucleus was also estimated on the basis of some assumptions. We report preliminary results of our analysis, and discuss some characteristics of cometary plasma and its interaction with interplanetary magnetic field (IMF). May the source be with you! This revised version was published online in July 2006 with corrections to the Cover Date. |
| Keywords: | Cometary plasma solar wind interplanetary magnetic field |
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