Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.206h&link_type=abstract
Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:
Astronomy and Astrophysics
Astrophysics
Scientific paper
Classical novae explosions are responsible for the synthesis of important radioactive nuclei for gamma-ray astronomy. Some of them are short-lived, and produce short lasting gamma-ray line emission at 511 keV and a continuum below this energy. Other radioactive nuclei synthesized during nova explosions, such as ^7Be (in carbon-oxygen, standard novae) and 22Na (in oxygen-neon, neon novae), are medium-lived and produce line emission at 478 and 1275 keV, respectively. Another important radioactive nucleus synthesized in nova explosions is 26Al, which emits a 1809 keV photon when it disintegrates, thus potentially contributing to the emission at this energy detected in the Galaxy. A deep analysis of the synthesis of these nuclei in classical novae and its consequences for gamma-ray astronomy, as well as the potential role of novae in Galactic ^7Li and 26Al production will be presented.
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