Title

HCO+ in the coma of comet Hale-Bopp

Publication Date

1999

Journal or Book Title

EARTH MOON AND PLANETS

Abstract

Maps of comet C/1995 O1 (Hale-Bopp) in the millimeter-wave emission of the ion HCO+ revealed a local minimum near the nucleus position, with a maximum about 100,000 km in the antisolar direction. These observed features of the HCO+ emission require a low abundance of HCO+ due to enhanced destruction in the inner coma of the comet, within a region of low electron temperature (Te). To set constraints on the formation of HCO+ in the coma, as well as the location and magnitude of the transition to higher Te, the data are compared with the results of ion-molecule chemistry models.

Comments

The published version is located at http://www.springerlink.com/content/j2v620706x0r17x6/

Volume

77

Pages

253-258

Issue

3

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