Upper limits of the $^{22}$Na yield from O-Ne nova

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dc.creatorJean, P.
dc.creatorKnödlseder, J.
dc.creatorvon Ballmoos, P.
dc.creatorGómez-Gomar, J.
dc.creatorHernanz, M.
dc.creatorJosé, J.
dc.date2001-06-19
dc.date.accessioned2026-07-07T01:58:58Z
dc.date.available2026-07-07T01:58:58Z
dc.descriptionThe radioactive isotope $^{22}$Na is one of the primary tracer isotopes that may potentially be detectable by gamma-ray spectroscopy. This isotope is predicted to be produced in ONe nova explosions, yet no detection of its 1.275 MeV gamma-ray signature has been reported so far. In particular, 6 years of COMPTEL observations of the galactic bulge, a region that should be particularily rich in nova explosions, have only led to an upper-limit. In this paper we will present the implications of the COMPTEL upper flux limit on the permissible $^{22}$Na yield for ONe novae. We base our analysis on extensive Monte-Carlo simulations of galactic 1.275 MeV emission that were constrained by the most recent results of galactic nova rates and distributions. We demonstrate that the non-detection of the 1.275 MeV line from the galactic bulge implies a solid upper $^{22}$Na yield limit in agreement with current theoretical nucleosynthesis calculations.
dc.description5 pages, 6 figures, Contributed paper at the 4th INTEGRAL Workshop, 4-8 September 2000, Alicante (Spain). To be published in the ESA-SP series
dc.identifierhttps://arxiv.org/abs/astro-ph/0106340
dc.identifierhttp://arxiv.org/abs/astro-ph/0106340
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/2928
dc.subjectAstrophysics
dc.titleUpper limits of the $^{22}$Na yield from O-Ne nova
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