Type Ia Supernova Rate in the Galactic Center Region
| dc.creator | Schanne, Stephane | |
| dc.creator | Casse, Michel | |
| dc.creator | Sizun, Patrick | |
| dc.creator | Cordier, Bertrand | |
| dc.creator | Paul, Jacques | |
| dc.date | 2006-09-20 | |
| dc.date | 2007-01-23 | |
| dc.date.accessioned | 2026-07-07T07:42:13Z | |
| dc.date.available | 2026-07-07T07:42:13Z | |
| dc.description | According to recent analyses of the type-Ia supernova rate as a function of redshift, delayed and prompt type-Ia supernovae (SN Ia) should explode respectively in the Galactic bulge and in the nuclear bulge, a gas rich structure with ongoing star formation, located in the central region of the Milky Way. We estimate the rate of type-Ia supernovae in the Galactic bulge and nuclear bulge. We show that this rate is insufficient by an order of magnitude to explain by positron escape from type-Ia supernovae envelopes alone the large positron injection rate into the Galactic central region, as re-observed recently by the Spectrometer on INTEGRAL, which amounts to 1.25 10^{43} e+ s^{-1} and would require 0.5 SN Ia explosions per century. | |
| dc.description | 5 pages, 3 figures. Accepted for publication in ESA SP-622 (Proceedings of the 6th INTEGRAL Workshop, Moscow, 2006 07 03-07) | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0609566 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0609566 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/122364 | |
| dc.subject | Astrophysics | |
| dc.title | Type Ia Supernova Rate in the Galactic Center Region | |
| dc.type | text |