ar X iv : a st ro - p h / 01 03 42 0 v 1 2 6 M ar 2 00 1 1 PROSPECTS FOR DETECTABILITY OF CLASSICAL NOVAE WITH INTEGRAL
نویسندگان
چکیده
Classical novae are potential gamma-ray emitters, both in lines and in a continuum. Continuum emission (at energies between 20-30 and 511 keV) and line emission at 511 keV are related to positron annihilation and its Comptonization in the expanding shell; 18 F is the main responsible of positron production. The lines at 478 and 1275 keV have their origin on the decay of the radioactive nuclei 7 Be and 22 Na. Updated models of nova explosions have been adopted for the computation of the gamma-ray emission. New yields of some radioactive isotopes directly translate into new detectability distances of classical novae with INTEGRAL.
منابع مشابه
ar X iv : a st ro - p h / 01 03 41 8 v 1 2 6 M ar 2 00 1 1 EXPLOSIVE NUCLEOSYNTHESIS
Many radioactive nuclei relevant for gamma-ray astrophysics are synthesized during explosive events, such as classical novae and supernovae. A review of recent results of explosive nucleosynthesis in these scenarios will be presented, with a special emphasis on the ensuing gamma-ray emission from individual nova and supernova explosions. The influence of the dynamic properties of the ejecta on ...
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