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arXiv · 2103.04716

Annihilation of positrons from $^{22}$Na in novae

N. N. Chugai·A. D. Kudryashov
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Abstract

We explore for the first time effects of the magnetic field on the escape of $^{22}$Na positrons and on the flux evolution of annihilation 511 keV line in novae. It is shown that for the white dwarf magnetic field of $\sim 10^6$ G the field of the expanding nova shell is able to significantly impede positrons escape and increase the time of the nova emission in 511keV up to hundreds days.

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N. N. Chugai, A. D. Kudryashov. 2021-03-08. Annihilation of positrons from $^{22}$Na in novae. https://arxiv.org/abs/2103.04716

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