Annihilation of positrons from $^{22}$Na in novae
High Energy Astrophysical Phenomena
2021-03-09 v1
Abstract
We explore for the first time effects of the magnetic field on the escape of 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 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.
Cite
@article{arxiv.2103.04716,
title = {Annihilation of positrons from $^{22}$Na in novae},
author = {N. N. Chugai and A. D. Kudryashov},
journal= {arXiv preprint arXiv:2103.04716},
year = {2021}
}
Comments
Accepted by Astronomy Letters