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SN 2010LP-A TYPE IA...
SN 2010LP-A TYPE IA SUPERNOVA FROM A VIOLENT MERGER OF TWO CARBON-OXYGEN WHITE DWARFS
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- Kromer, Markus (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC),Max-Planck-Institut für Astrophysik, Germany
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Pakmor, R. (author)
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Taubenberger, S. (author)
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Pignata, G. (author)
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Fink, M. (author)
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Röpke, F. K. (author)
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Seitenzahl, I. R. (author)
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Sim, S. A. (author)
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Hillebrandt, W. (author)
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(creator_code:org_t)
- 2013
- 2013
- English.
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In: Astrophysical Journal Letters. - 2041-8205 .- 2041-8213. ; 778:1
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- SN 2010lp is a subluminous Type Ia supernova (SN Ia) with slowly evolving lightcurves. Moreover, it is the only subluminous SN Ia observed so far that shows narrow emission lines of [O I] in late-time spectra, indicating unburned oxygen close to the center of the ejecta. Most explosion models for SNe Ia cannot explain the narrow [O I] emission. Here, we present hydrodynamic explosion and radiative transfer calculations showing that the violent merger of two carbon-oxygen white dwarfs of 0.9 and 0.76 M-circle dot adequately reproduces the early-time observables of SN 2010lp. Moreover, our model predicts oxygen close to the center of the explosion ejecta, a pre-requisite for narrow [O I] emission in nebular spectra as observed in SN 2010lp.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- binaries: close
- hydrodynamics
- radiative transfer
- supernovae: individual (SN 2010lp)
Publication and Content Type
- ref (subject category)
- art (subject category)
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