Recombinational lines of P(S) (Positronium) as tracer of annihilation processes

Details Recombinational lines of P(S) (Positronium) as tracer of annihilation processes Recombinational lines of P(S) (Positronium) as tracer of annihilation processes

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apjs...92..549b&link_type=abstract

The Astrophysical Journal Supplement Series, vol. 92, no. 2, p. 549-550

Astronomy and Astrophysics

Astrophysics

5

Cosmochemistry, Positron Annihilation, Positronium, Radiative Recombination, Gamma Rays, Hydrogen, Line Spectra

Scientific paper

In the low energetic limit the cross section for the radiative recombination of P(S) to high levels is computed. The distribution of populations of excited levels P(S) in l is found on the assumption that radiative processes are much faster than collisional ones. Radio recombinational lines of P(S) can be observed from sources in which an annihilation takes place at low temperatures (T less than 106 K).

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