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dc.contributor.authorLevanon, Naveh
dc.contributor.authorSoker, Noam
dc.contributor.authorGarcía-Berro Montilla, Enrique
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física Aplicada
dc.date.accessioned2015-05-07T11:13:10Z
dc.date.available2015-05-07T11:13:10Z
dc.date.created2015-03-01
dc.date.issued2015-03-01
dc.identifier.citationLevanon, 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.issn0035-8711
dc.identifier.urihttp://hdl.handle.net/2117/27814
dc.description.abstractWe 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.extent7 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Física::Astronomia i astrofísica
dc.subject.lcshWhite dwarf stars
dc.subject.lcshSupernovae
dc.subject.otheraccretion
dc.subject.otheraccretion discs
dc.subject.otherhydrodynamics
dc.subject.otherbinaries: close
dc.subject.othersupernovae: general
dc.subject.otherwhite dwarfs
dc.subject.otherWHITE-DWARF MERGERS
dc.subject.otherPARTICLE HYDRODYNAMICS SIMULATIONS
dc.subject.otherCHANDRASEKHAR MASS MODELS
dc.subject.otherTRIPLE-SYSTEMS
dc.subject.otherVIOLENT MERGERS
dc.subject.otherLIGHT CURVES
dc.subject.otherSN 2011FE
dc.subject.otherPROGENITORS
dc.subject.otherEVOLUTION
dc.subject.otherSTAR
dc.titleConstraining the double-degenerate scenario for Type Ia supernovae from merger ejected matter
dc.typeArticle
dc.subject.lemacEstels nans
dc.contributor.groupUniversitat Politècnica de Catalunya. GAA - Grup d'Astronomia i Astrofísica
dc.identifier.doi10.1093/mnras/stu2580
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
local.identifier.drac15597952
dc.description.versionPostprint (author’s final draft)
local.citation.authorLevanon, N.; Soker, N.; Garcia-berro, E.
local.citation.publicationNameMonthly notices of the Royal Astronomical Society
local.citation.volume447
local.citation.number3
local.citation.startingPage2803
local.citation.endingPage2809


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