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Constraining the double-degenerate scenario for Type Ia supernovae from merger ejected matter
dc.contributor.author | Levanon, Naveh |
dc.contributor.author | Soker, Noam |
dc.contributor.author | García-Berro Montilla, Enrique |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Física Aplicada |
dc.date.accessioned | 2015-05-07T11:13:10Z |
dc.date.available | 2015-05-07T11:13:10Z |
dc.date.created | 2015-03-01 |
dc.date.issued | 2015-03-01 |
dc.identifier.citation | Levanon, N.; Soker, N.; Garcia-berro, E. Constraining the double-degenerate scenario for Type Ia supernovae from merger ejected matter. "Monthly notices of the Royal Astronomical Society", 01 Març 2015, vol. 447, núm. 3, p. 2803-2809. |
dc.identifier.issn | 0035-8711 |
dc.identifier.uri | http://hdl.handle.net/2117/27814 |
dc.description.abstract | We follow the mass expelled during the WD-WD merger process in a particular case of the double-degenerate (DD) scenario for Type Ia supernovae (SNe Ia), and find that the interaction of the SN ejecta with the resulting wind affects the early (first day) light-curve in a way that may be in conflict with some SN Ia observations, if the detonation occurs shortly after the merger, i.e. (10(3) s less than or similar to t(exp) less than or similar to 1 d). The main source of the expelled mass is a disc-wind, or jets that are launched by the accretion disc around the more massive white dwarf (WD) during the viscous phase of the merger. This disc-originated matter will be shocked and heated by the SN ejecta from an explosion, leading to additional radiation in the early light-curve. This enhanced early radiation could then be interpreted as an explosion originating from a progenitor having an inferred radius of one solar radius or more, in conflict with observations of SN 2011fe. |
dc.format.extent | 7 p. |
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 | White dwarf stars |
dc.subject.lcsh | Supernovae |
dc.subject.other | accretion |
dc.subject.other | accretion discs |
dc.subject.other | hydrodynamics |
dc.subject.other | binaries: close |
dc.subject.other | supernovae: general |
dc.subject.other | white dwarfs |
dc.subject.other | WHITE-DWARF MERGERS |
dc.subject.other | PARTICLE HYDRODYNAMICS SIMULATIONS |
dc.subject.other | CHANDRASEKHAR MASS MODELS |
dc.subject.other | TRIPLE-SYSTEMS |
dc.subject.other | VIOLENT MERGERS |
dc.subject.other | LIGHT CURVES |
dc.subject.other | SN 2011FE |
dc.subject.other | PROGENITORS |
dc.subject.other | EVOLUTION |
dc.subject.other | STAR |
dc.title | Constraining the double-degenerate scenario for Type Ia supernovae from merger ejected matter |
dc.type | Article |
dc.subject.lemac | Estels nans |
dc.contributor.group | Universitat Politècnica de Catalunya. GAA - Grup d'Astronomia i Astrofísica |
dc.identifier.doi | 10.1093/mnras/stu2580 |
dc.description.peerreviewed | Peer Reviewed |
dc.rights.access | Open Access |
local.identifier.drac | 15597952 |
dc.description.version | Postprint (author’s final draft) |
local.citation.author | Levanon, N.; Soker, N.; Garcia-berro, E. |
local.citation.publicationName | Monthly notices of the Royal Astronomical Society |
local.citation.volume | 447 |
local.citation.number | 3 |
local.citation.startingPage | 2803 |
local.citation.endingPage | 2809 |
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