Formation of an extended halo of hot oxygen atoms in the wake region of venus

Ying Liao; Wing Huen Ip

doi:10.1142/9789814405744_0003

Formation of an extended halo of hot oxygen atoms in the wake region of venus

Ying Liao, Wing Huen Ip

Graduate Institute of Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Abstract

From the detailed measurements in Venusian ionosphere by the Pioneer Venus Orbiter, it was well-known that there is a large day-to-night flow of ionospheric plasma with the horizontal speed reaching a value as high as 5 km/s at 500 km altitude near the terminator. This large-scale anti-sunward convective motion could lead to a significant distortion of the hot oxygen corona maintained by oxygen atoms from O+ 2 dissociation recombination into a tadpole-like structure. A Monte-Carlo model is developed to simulate the two-dimensional configuration of such a hot oxygen corona.

Original language	English
Title of host publication	Advances in Geosciences
Publisher	World Scientific Publishing Co.
Pages	25-34
Number of pages	10
ISBN (Electronic)	9789814405744
ISBN (Print)	9789814405737
DOIs	https://doi.org/10.1142/9789814405744_0003
State	Published - 1 Jan 2012

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abstract = "From the detailed measurements in Venusian ionosphere by the Pioneer Venus Orbiter, it was well-known that there is a large day-to-night flow of ionospheric plasma with the horizontal speed reaching a value as high as 5 km/s at 500 km altitude near the terminator. This large-scale anti-sunward convective motion could lead to a significant distortion of the hot oxygen corona maintained by oxygen atoms from O+ 2 dissociation recombination into a tadpole-like structure. A Monte-Carlo model is developed to simulate the two-dimensional configuration of such a hot oxygen corona.",

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Formation of an extended halo of hot oxygen atoms in the wake region of venus

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