Prospects for detectability of classical novae with integral

被引：0
|
作者：
Hernanz, M [1 ]
Gómez-Gomar, J [1 ]
José, J [1 ]
Coc, A [1 ]
机构：
[1] IEEC, Barcelona, Spain
来源：
EXPLORING THE GAMMA-RAY UNIVERSE | 2001年 / 459卷
关键词：
gamma rays : observations; novae; cataclysmic variables; nuclear reactions; nucleosynthesis; abundances;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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.
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收藏
页码：65 / 68
页数：4
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