Galactic 1.275 MeV emission from ONe novae and its detectability by INTEGRAL/SPI
Abstract
Models of Galactic 1.275 MeV emission produced by the decay of the radionuclide Na have been computed. Several frequency-spatial distributions of novae have been investigated using recent results of nova rates and spatial distributions of novae in our Galaxy. These models allow us to estimate the lower-limit of the Na mass ejected per ONe nova detectable with the future spectrometer (SPI) of the INTEGRAL observatory as a function of the frequency-spatial distribution of ONe novae in the Galaxy. Calculations using recent estimations of the expected Na mass ejected per ONe nova show that the detection of the Galactic emission of 1.275 MeV photons will be difficult with the future spectrometer of the INTEGRAL observatory, whereas the cumulative emission around the Galactic center has some chances to be detected during the deep survey of the central radian of the Galaxy.
Cite
@article{arxiv.astro-ph/0004126,
title = {Galactic 1.275 MeV emission from ONe novae and its detectability by INTEGRAL/SPI},
author = {P. Jean and M. Hernanz and J. Gomez-Gomar and J. Jose},
journal= {arXiv preprint arXiv:astro-ph/0004126},
year = {2009}
}
Comments
12 pages, 17 figures, MNRAS in press