HCO+ in the coma of comet Hale-Bopp

Authors

AJ Lovell
FP Schloerb
EA Bergin
JE Dickens
CH Devries
MC Senay
William M. Irvine, University of Massachusetts - AmherstFollow

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 (T_e). To set constraints on the formation of HCO⁺ in the coma, as well as the location and magnitude of the transition to higher T_e, 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/

DOI

https://doi.org/10.1023/A:1006285703521

Pages

253-258

Volume

77

Issue

3

Recommended Citation

Lovell, AJ; Schloerb, FP; Bergin, EA; Dickens, JE; Devries, CH; Senay, MC; and Irvine, William M., "HCO+ in the coma of comet Hale-Bopp" (1999). EARTH MOON AND PLANETS. 476.
https://doi.org/10.1023/A:1006285703521