Mostra el registre d'ítem simple
Spiral instability can drive thermonuclear explosions in binary white dwarf mergers
dc.contributor.author | kashyap, Rahul |
dc.contributor.author | Fisher, Robert T. |
dc.contributor.author | García-Berro Montilla, Enrique |
dc.contributor.author | Aznar Siguan, Gabriela |
dc.contributor.author | Ji, Suoqing |
dc.contributor.author | Lorén Aguilar, Pablo |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Física Aplicada |
dc.date.accessioned | 2015-06-01T11:14:21Z |
dc.date.available | 2015-06-01T11:14:21Z |
dc.date.created | 2015-02-10 |
dc.date.issued | 2015-02-10 |
dc.identifier.citation | kashyap, R. [et al.]. Spiral instability can drive thermonuclear explosions in binary white dwarf mergers. "The astrophysical journal letters", 10 Febrer 2015, vol. 800, núm. 1, p. 800:L7-1-800:L7-6. |
dc.identifier.issn | 2041-8205 |
dc.identifier.uri | http://hdl.handle.net/2117/28120 |
dc.description.abstract | Thermonuclear, or Type Ia supernovae (SNe Ia), originate from the explosion of carbon-oxygen white dwarfs, and serve as standardizable cosmological candles. However, despite their importance, the nature of the progenitor systems that give rise to SNe Ia has not been hitherto elucidated. Observational evidence favors the double-degenerate channel in which merging white dwarf binaries lead to SNe Ia. Furthermore, significant discrepancies exist between observations and theory, and to date, there has been no self-consistent merger model that yields a SNe Ia. Here we show that a spiral mode instability in the accretion disk formed during a binary white dwarf merger leads to a detonation on a dynamical timescale. This mechanism sheds light on how white dwarf mergers may frequently yield SNe Ia. |
dc.language.iso | eng |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Física::Astronomia i astrofísica |
dc.subject.lcsh | Hydrodyanamics |
dc.subject.lcsh | White dwarf stars |
dc.subject.lcsh | Supernovae |
dc.subject.other | hydrodynamics |
dc.subject.other | supernovae: general |
dc.subject.other | white dwarfs |
dc.subject.other | ECCENTRIC GRAVITATIONAL INSTABILITIES |
dc.subject.other | IA SUPERNOVAE |
dc.subject.other | COLLISIONS |
dc.subject.other | DETONATIONS |
dc.subject.other | SIMULATIONS |
dc.subject.other | PROGENITORS |
dc.subject.other | EVOLUTION |
dc.subject.other | REMNANTS |
dc.subject.other | DISKS |
dc.subject.other | END |
dc.title | Spiral instability can drive thermonuclear explosions in binary white dwarf mergers |
dc.type | Article |
dc.subject.lemac | Estels nans |
dc.subject.lemac | Supernoves |
dc.contributor.group | Universitat Politècnica de Catalunya. GAA - Grup d'Astronomia i Astrofísica |
dc.contributor.group | Universitat Politècnica de Catalunya. CTE-CRAE - Grup de Recerca en Ciències i Tecnologies de l'Espai |
dc.identifier.doi | 10.1088/2041-8205/800/1/L7 |
dc.description.peerreviewed | Peer Reviewed |
dc.rights.access | Open Access |
local.identifier.drac | 15504597 |
dc.description.version | Postprint (published version) |
local.citation.author | kashyap, R.; Fisher, R.T.; Garcia-berro, E.; Aznar, G.; Ji, S.; Loren, P. |
local.citation.publicationName | The astrophysical journal letters |
local.citation.volume | 800 |
local.citation.number | 1 |
local.citation.startingPage | 800:L7-1 |
local.citation.endingPage | 800:L7-6 |
Fitxers d'aquest items
Aquest ítem apareix a les col·leccions següents
-
Articles de revista [299]
-
Articles de revista [454]
-
Articles de revista [72]