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1996A&AS..120C.587S - Astron. Astrophys., Suppl. Ser., 120C, 587-590 (1996/December-3)
A simple formula for the thermal pair annihilation line emissivity.
SVENSSON R., LARSSON S. and POUTANEN J.
Abstract (from CDS):
We introduce a simple and convenient fitting formula for the thermal annihilation line from pair plasmas in cosmic sources. The fitting formula is accurate to 0.04% and is valid at all photon energies and temperatures of interest. The commonly used Gaussian line profile is not a good approximation for broader lines.
Abstract Copyright: ∼
Journal keyword(s): gamma rays: theory - line: formation - profiles - radiation mechanisms: thermal
CDS comments: Special Issue "3rd Compton Symposium"
Simbad objects: 2
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