Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Thermonuclear and Electron-Capture Supernovae from Stripped-Envelope
  Stars   (abridged) When stripped from their hydrogen-rich envelopes, stars with
initial masses between $\sim$7 and 11 M$_\odot$ develop massive degenerate
cores and collapse. Depending on the final structure and composition, the
outcome can range from a thermonuclear explosion, to the formation of a neutron
star in an electron-capture supernova (ECSN). It has been recently demonstrated
that stars in this mass range may initiate explosive oxygen burning when their
central densities are still below $\rho_{\rm c} \lesssim 10^{9.6}$ g cm$^{-3}$.
This makes them interesting candidates for Type Ia Supernovae -- which we call
(C)ONe SNe Ia -- and might have broader implications for the formation of
neutron stars via ECSNe. Here, we model the evolution of 252 helium-stars with
initial masses in the $0.8-3.5$ M$_\odot$ range, and metallicities between
$Z=10^{-4}$ and $0.02$. We use these models to constrain the central densities,
compositions and envelope masses at the time of explosive oxygen ignition. We
further investigate the sensitivity of these properties to mass-loss rate
assumptions using additional models with varying wind efficiencies. We find
that helium-stars with masses between $\sim$1.8 and 2.7 M$_\odot$ evolve onto
$1.35-1.37$ M$_\odot$ (C)ONe cores that initiate explosive burning at central
densities between $\rm \log_{10}(\rho_c)\sim 9.3$ and 9.6. We constrain the
amount of residual carbon retained after core carbon burning, and conclude that
it plays a critical role in determining the final outcome: Cores with residual
carbon mass fractions of $X_{\rm min}(\rm{{^{12}}C}) \gtrsim 0.004$ result in
(C)ONe SNe Ia, while those with lower carbon mass fractions become ECSNe. We
find that (C)ONe SNe Ia are more likely to occur at high metallicities, whereas
at low metallicities ECSNe dominate.

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The categories of this paper are: solv-int
19
The categories of this paper are: eess
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The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
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The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
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The categories of this paper are: funct-an
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-ex
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The categories of this paper are: plasm-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: q-alg
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The categories of this paper are: physics