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Galactic distribution of 1.275 MeV emission from O-Ne novae

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arxiv astro-ph/9903013 v1 pith:S2GE2NTF submitted 1999-03-01 astro-ph

classification astro-ph
keywords emissiongalacticnovaebeendistributiondistributionsejectedfrequency-spatial
verification ladder T0 review T1 audit T2 compute T3 formal
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Modelisations of galactic 1.275 MeV emission produced by the decay 22Na have been performed for several frequency-spatial distributions of ONe novae. Recent results of nova rates and their distributions in our Galaxy have been used. These modelisations allow to estimate the lower-limit of the 22Na mass ejected per ONe novae detectable with the future spectrometer (SPI) of the INTEGRAL observatory as a function of their frequency-spatial distribution in the Galaxy. Calculations using recent estimations of the expected 22Na mass ejected per ONe nova show that the diffuse galactic 1.275 MeV emission will be difficult to detect with SPI.

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