Non-local Thermodynamic Equilibrium Radiative Transfer Simulations of Sub-Chandrasekhar-mass White Dwarf Detonations

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dc.contributor.authorShen, Ken J.
dc.contributor.authorBlondin, Stephane
dc.contributor.authorKasen, Daniel
dc.contributor.authorDessart, Luc
dc.contributor.authorTownsley, Dean M.
dc.contributor.authorBoos, Samuel
dc.contributor.authorHillier, D. John
dc.date.accessioned2025-01-20T23:53:49Z
dc.date.available2025-01-20T23:53:49Z
dc.date.issued2021
dc.description.abstractType Ia supernovae (SNe Ia) span a range of luminosities and timescales, from rapidly evolving subluminous to slowly evolving overluminous subtypes. Previous theoretical work has, for the most part, been unable to match the entire breadth of observed SNe Ia with one progenitor scenario. Here, for the first time, we apply non-local thermodynamic equilibrium radiative transfer calculations to a range of accurate explosion models of sub-Chandrasekhar-mass white dwarf detonations. The resulting photometry and spectra are in excellent agreement with the range of observed nonpeculiar SNe Ia through 15 days after the time of B-band maximum, yielding one of the first examples of a quantitative match to the entire Phillips relation. The intermediate-mass element velocities inferred from theoretical spectra at maximum light for the more massive white dwarf explosions are higher than those of bright observed SNe Ia, but these and other discrepancies likely stem from the one-dimensional nature of our explosion models and will be improved upon by future non-local thermodynamic equilibrium radiation transport calculations of multidimensional sub-Chandrasekhar-mass white dwarf detonations.
dc.fuente.origenWOS
dc.identifier.doi10.3847/2041-8213/abe69b
dc.identifier.eissn2041-8213
dc.identifier.issn2041-8205
dc.identifier.urihttps://doi.org/10.3847/2041-8213/abe69b
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/94998
dc.identifier.wosidWOS:000627290900001
dc.issue.numero2
dc.language.isoen
dc.revistaAstrophysical journal letters
dc.rightsacceso restringido
dc.subjectType Ia supernovae
dc.subjectSupernovae
dc.subjectWhite dwarf stars
dc.subjectRadiative transfer
dc.titleNon-local Thermodynamic Equilibrium Radiative Transfer Simulations of Sub-Chandrasekhar-mass White Dwarf Detonations
dc.typeartículo
dc.volumen909
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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