Multiply charged ions in astrophysics

Details Multiply charged ions in astrophysics Multiply charged ions in astrophysics

Apr 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987nimpb..23..222h&link_type=abstract

Nuclear Instruments and Methods in Physics Research Section B, Volume 23, Issue 1-2, p. 222-225.

Physics

12

Scientific paper

Atomic processes involving multiply charged ions provide key information for understanding the internal structures of a multitude of astrophysical environments. Photons emitted from these plasmas are a signature of the production and destruction mechanisms leading to multiply charged ions as well as intervening processes within each ionization stage Spectral lines can be used to infer number densities and temperatures of constituent ions although sufficient care must be exercised to include all relevant atomic processes. Well characterised astrophysical plasmas can be used as `laboratories' to measure kinetic rate constants of certain reactions such as charge transfer. These analyses would benefit from more detailed atomic data such as cross sections for the population of individual fine structure levels in the case of charge transfer.

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