SN 2010LP—A TYPE IA SUPERNOVA FROM A VIOLENT MERGER OF TWO CARBON-OXYGEN WHITE DWARFS
作者： M. Kromer , R. Pakmor , S. Taubenberger , G. Pignata , M. Fink
DOI: 10.1088/2041-8205/778/1/L18
关键词: Radiative transfer 、 Oxygen 、 Supernova 、 Emission spectrum 、 Spectral line 、 Ejecta 、 Astronomy 、 Physics 、 Pair-instability supernova 、 White dwarf 、 Astrophysics
摘要: SN 2010lp is a subluminous Type Ia supernova (SN Ia) with slowly evolving lightcurves. Moreover, it the only observed so far that shows narrow emission lines of [O I] in late-time spectra, indicating unburned oxygen close to center ejecta. Most explosion models for SNe cannot explain emission. Here, we present hydrodynamic and radiative transfer calculations showing violent merger two carbon-oxygen white dwarfs 0.9 0.76 M ☉ adequately reproduces early-time observables 2010lp. our model predicts ejecta, pre-requisite nebular spectra as
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