Galactic positron annihilation radiation

Details Galactic positron annihilation radiation Galactic positron annihilation radiation

Apr 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987aipc..155...51r&link_type=abstract

AIP Conference Proceedings, Volume 155, pp. 51-61 (1987).

Computer Science

12

Black Holes

Scientific paper

Recent observations suggest that galactic line emission at 511 keV results from the superposition of contributions from a variable, compact source and an interstellar distribution of positrons resulting from the decay of radionuclei produced by thermonuclear burning supernovae. The compact point source could have turned on as recently as 1977 and has not been seen since 1979. Photon-photon pair production in the vicinity of a relatively small black hole (<103 Msolar) could be the source of the annihilating positrons in the point source. It is not known whether this compact object lies exactly at the Galactic Center.

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