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One-photon annihilation of thermal positrons with bound atomic electronsDirect one-photon annihilation rate of positrons with a bound atomic electron is evaluated in the nonrelativistic limit. The K- and L-shell contributions are estimated including the screening and effective Coulomb repulsion effects. The annihilation rate of thermal positrons is calculated for various temperatures. The total number of one-photon annihilation events in the interstellar medium is discussed. These results provide the directional and structural information for cosmic gamma-ray sources.
Document ID
19950053125
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Jung, Young-Dae
(NASAMarshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 16, 2013
Publication Date
April 1, 1994
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 424
Issue: 2
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
95A84724
Distribution Limits
Public
Copyright
Other

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