The possibility of observation of the L-alpha-line of positronium (e+ e-) from astronomical objects

Details The possibility of observation of the L-alpha-line of positronium (e+ e-) from astronomical objects The possibility of observation of the L-alpha-line of positronium (e+ e-) from astronomical objects

Feb 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...255..459b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 255, no. 1-2, p. 459-461.

Astronomy and Astrophysics

Astrophysics

11

Annihilation Reactions, Lyman Alpha Radiation, Particle Interactions, Positronium, Recombination Reactions, Atomic Energy Levels, Electron Density (Concentration), Line Spectra, Photons

Scientific paper

We analyze from a physical point of view the possibility of observation of the L-alpha line of the positronium (Ps). In a broad range of temperatures the processes of recombination to states of Ps with different quantum numbers nl and collisions of Ps with electrons and protons are examined. It is shown that the electron density in annihilation sources can be obtained from the intensity of the L-alpha line of positronium.

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