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Cited by 262

The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.

Multidimensional Simulations of the Accretion‐induced Collapse of White Dwarfs to Neutron Stars

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Dessart, L., Burrows, A., Ott, C. D., Livne, E., Yoon, S.‐Y., Langer, N.·2006·The Astrophysical Journal
DOI 10.1086/503626
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Abstract

We present 2.5-dimensional radiation-hydrodynamics simulations of the accretion-induced collapse (AIC) of white dwarfs, starting from two-dimensional rotational equilibrium configurations, thereby accounting consistently for the effects of rotation prior to and after core collapse. We focus our study on a 1.46 and a 1.92 M ☉ a model. Electron capture leads to the collapse to nuclear densities of these cores a few tens of milliseconds after the start of the simulations. The shock generated at bounce moves slowly, but steadily, outward. Within 50-100 ms, the stalled shock breaks out of the white dwarf along the poles. The blast is followed by a neutrino-driven wind that develops within the white dwarf, in a cone of ~40° opening angle about the poles, with a mass loss rate of (5-8) × 10 -3 M ☉ s -1 . The ejecta have an entropy on the order of (20-50) k B baryon -1 and an electron fraction that is bimodal. By the end of the simulations, at ≳600 ms after bounce, the explosion energy has reached (3-4) × 10 49 ergs and the mass has reached a few times 10 -3 M ☉ . We estimate the asymptotic explosion energies to be lower than 10 50 ergs, significantly lower than those inferred for standard core collapse. The AIC of white dwarfs thus represents one instance where a neutrino mechanism leads undoubtedly to a successful, albeit weak, explosion. We document in detail the numerous effects of the fast rotation of the progenitors: the neutron stars are aspherical; the ``ν μ '' and e neutrino luminosities are reduced compared to the ν e neutrino luminosity; the deleptonized region has a butterfly shape; the neutrino flux and electron fraction depends strongly upon latitude (a la von Zeipel); and a quasi-Keplerian 0.1-0.5 M ☉ accretion disk is formed.

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Metadata

Authors
Dessart, L., Burrows, A., Ott, C. D., Livne, E., Yoon, S. ‐., & Langer, N.
Venue
The Astrophysical Journal
Publisher
American Astronomical Society
Published
2006-06-20
Volume
644
Issue
2
Pages
1063-1084
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
DOI
10.1086/503626
OpenAlex
W2084415389
Cited by
262
References
31
FWCI
11.38
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Multidimensional Simulations of the Accretion‐induced Collapse of White Dwarfs to Neutron Stars. https://app.cochat.ai/papers/10.1086/503626
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Dessart, L., Burrows, A., Ott, C. D., Livne, E., Yoon, S. ‐., & Langer, N. (2006). Multidimensional Simulations of the Accretion‐induced Collapse of White Dwarfs to Neutron Stars. The Astrophysical Journal. https://doi.org/10.1086/503626

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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.