Hco+ in the Coma of Comet Hale-Bopp

Details Hco+ in the Coma of Comet Hale-Bopp Hco+ in the Coma of Comet Hale-Bopp

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997em%26p...77..253l&link_type=abstract

Earth, Moon, and Planets, v. 77, Issue 3, p. 253-258 (1997).

Computer Science

7

Comets, Hco+, Chemistry, Plasmas

Scientific paper

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.

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