Asymmetric Explosions of Type Ia Supernovae
| dc.creator | Ghezzi, Cristian R. | |
| dc.creator | Pino, E. M. de Gouveia Dal | |
| dc.creator | Horvath, Jorge E. | |
| dc.date | 2002-08-27 | |
| dc.date.accessioned | 2026-07-07T02:04:49Z | |
| dc.date.available | 2026-07-07T02:04:49Z | |
| dc.description | The burning speed of a thermonuclear supernova front could be described by the fractal model of combustion. We have examined the effects of magnetic fields on the fractalization of the front considering a white dwarf with a nearly dipolar magnetic field and found an intrinsic asymmetry on the velocity field of the expanding plasma. For white dwarf's magnetic fields of 10^8-10^9 G at the surface, and assuming a field roughly 10 times greater near the center, we have found asymmetries in the velocity field > 10-20 % at rho ~ 10^8 g cm^(-3), produced between the magnetic polar and the equatorial axis of the remnant. This effect may be related to the asphericities inferred from spectro-polarimetric observations of very young SN Ia remnants (for example: SN 1999by). In the present work, we analyse the dependence of the asymmetry with the composition of the white dwarf progenitor. | |
| dc.description | 8 pages, 2 figures, Proc. of "Frontiers of the Universe", 17th - 23rd June 2001, XIII Rencontres de Blois | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0208483 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0208483 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/4906 | |
| dc.subject | Astrophysics | |
| dc.title | Asymmetric Explosions of Type Ia Supernovae | |
| dc.type | text |