Charge Transfer of NE2+ with Helium

Details Charge Transfer of NE2+ with Helium Charge Transfer of NE2+ with Helium

Sep 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....89..379d&link_type=abstract

Astronomy and Astrophysics, Vol. 89, P. 379, 1980

Astronomy and Astrophysics

Astrophysics

6

Scientific paper

From an analysis of the emission spectrum of NGC 7027, it has been argued that charge transfer of Ne2+ proceeds rapidly in collision with helium with a rate coefficient exceeding 10-10 cm3 s-1. We put forward theoretical considerations which suggest that it is very slow and that the rate coefficient is unlikely to much exceed 10-14 cm3 s-1. The rate coefficient has been measured at 300 K where it has a value of 5 10-15 cm3. We attribute the measurement to a radiative charge transfer process whose rate will change only slowly with increasing temperature.

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