Detection of cometary ions at a distance of seven million kilometers upstream of comet halley

Koh Ichiro Oyama; Takumi Abe; Takashi Okuzawa; Ichishiro Konno

doi:10.1016/0032-0633(89)90092-5

Detection of cometary ions at a distance of seven million kilometers upstream of comet halley

Koh Ichiro Oyama
, Takumi Abe
, Takashi Okuzawa
, Ichishiro Konno

Institute of Space and Plasma Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

Between 10 and 12 March 1986 Japan's interplanetary spacecraft, Sakigake, traversed the front of comet Halley. The closest approach was at 04:17:00 U.T. on 11 March at a distance of 7 × 10⁶ km. A small fluctuation of solar wind velocity due to H₂O⁺ ions was first detected at the closest approach. However, maximum fluctuation was detected between 22:30:00 and 24:00:00 U.T. on 11 March. The spacecraft was closer than the time of closest approach to the trajectory of comet Halley during this time period. This might suggest that H₂O still remains along the path of comet Halley.

Original language	English
Pages (from-to)	517-524
Number of pages	8
Journal	Planetary and Space Science
Volume	37
Issue number	5
DOIs	https://doi.org/10.1016/0032-0633(89)90092-5
Publication status	Published - 1989 May

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.1016/0032-0633(89)90092-5

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title = "Detection of cometary ions at a distance of seven million kilometers upstream of comet halley",

abstract = "Between 10 and 12 March 1986 Japan's interplanetary spacecraft, Sakigake, traversed the front of comet Halley. The closest approach was at 04:17:00 U.T. on 11 March at a distance of 7 × 106 km. A small fluctuation of solar wind velocity due to H2O+ ions was first detected at the closest approach. However, maximum fluctuation was detected between 22:30:00 and 24:00:00 U.T. on 11 March. The spacecraft was closer than the time of closest approach to the trajectory of comet Halley during this time period. This might suggest that H2O still remains along the path of comet Halley.",

author = "Oyama, \{Koh Ichiro\} and Takumi Abe and Takashi Okuzawa and Ichishiro Konno",

year = "1989",

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language = "English",

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T1 - Detection of cometary ions at a distance of seven million kilometers upstream of comet halley

AU - Oyama, Koh Ichiro

AU - Abe, Takumi

AU - Okuzawa, Takashi

AU - Konno, Ichishiro

PY - 1989/5

Y1 - 1989/5

N2 - Between 10 and 12 March 1986 Japan's interplanetary spacecraft, Sakigake, traversed the front of comet Halley. The closest approach was at 04:17:00 U.T. on 11 March at a distance of 7 × 106 km. A small fluctuation of solar wind velocity due to H2O+ ions was first detected at the closest approach. However, maximum fluctuation was detected between 22:30:00 and 24:00:00 U.T. on 11 March. The spacecraft was closer than the time of closest approach to the trajectory of comet Halley during this time period. This might suggest that H2O still remains along the path of comet Halley.

AB - Between 10 and 12 March 1986 Japan's interplanetary spacecraft, Sakigake, traversed the front of comet Halley. The closest approach was at 04:17:00 U.T. on 11 March at a distance of 7 × 106 km. A small fluctuation of solar wind velocity due to H2O+ ions was first detected at the closest approach. However, maximum fluctuation was detected between 22:30:00 and 24:00:00 U.T. on 11 March. The spacecraft was closer than the time of closest approach to the trajectory of comet Halley during this time period. This might suggest that H2O still remains along the path of comet Halley.

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AN - SCOPUS:45149142813

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SP - 517

EP - 524

JO - Planetary and Space Science

JF - Planetary and Space Science

IS - 5

ER -

Detection of cometary ions at a distance of seven million kilometers upstream of comet halley

Abstract

All Science Journal Classification (ASJC) codes

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