Integral Studies Of Gamma-ray Lines And Nucleosynthesis

Details Integral Studies Of Gamma-ray Lines And Nucleosynthesis Integral Studies Of Gamma-ray Lines And Nucleosynthesis

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008head...10.3503l&link_type=abstract

American Astronomical Society, HEAD meeting #10, #35.03

Astronomy and Astrophysics

Astronomy

Scientific paper

We review recent observations of gamma-ray lines from nucleosynthetic radioactivity from supernovae and massive stars, and of positronium decay lines and continuum. These include studies of Galaxy-wide nucleosynthesis on million-year timescales, from 26Al (Diehl et al., Nature, 439, 45, 2006) and 60Fe (Wang et al., A&A, 469, 1005, 2007), observations of radioactive 44Ti in the Cas A supernova remnant (Renaud et al., ApJ, 647, L41, 2006) and from the galactic plane, and the possibility of 56Ni decay lines from nearby supernovae. We also discuss the recent developments in electron positron annihilation studies (Weidenspointner et al., Nature, 451, 159, 2008) and possible contributions of radioactivity to the galactic positron population.

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