Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The number of progenitors in the core - degenerate scenario for type Ia
  supernovae   We calculate the expected number of type Ia supernovae (SN Ia) in the
core-degenerate (CD) scenario and find it to match observations within the
uncertainties of the code. In the CD scenario the super-Chandrasekhar mass
white dwarf (WD) is formed at the termination of the common envelope phase from
a merger of a WD companion with the hot core of a massive asymptotic giant
branch (AGB) star. We use a simple population synthesis code that avoids the
large uncertainties involved in estimating the final orbital separation of the
common envelope evolution. Instead, we assume that systems where the core of
the secondary AGB star is more massive than the WD remnant of the primary star
merge at the termination of the common envelope phase. We also use a simple
prescription to count systems that have strong interaction during the AGB
phase, but not during the earlier red giant branch (RGB) phase. That a very
simple population synthesis code that uses the basics of stellar evolution
ingredients can match the observed rate of SN Ia might suggest that the
CD-scenario plays a major role in forming SN Ia.

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The categories of this paper are: stat
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The categories of this paper are: quant-ph
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
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The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
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The categories of this paper are: q-fin
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The categories of this paper are: acc-phys
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The categories of this paper are: cs
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The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
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The categories of this paper are: eess
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The categories of this paper are: bayes-an
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The categories of this paper are: cond-mat
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The categories of this paper are: chem-ph
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The categories of this paper are: nucl-ex