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Cited by 263

The DOI matches its Crossref record; 35 of the 35 references it cites were found in a registry or an index.

Gravitational wave burst signal from core collapse of rotating stars

Open access
Dimmelmeier, Harald, Ott, Christian D., Marek, Andreas, Janka, H.-Thomas·2008·Physical Review D
DOI 10.1103/physrevd.78.064056
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Abstract

We present results from detailed general relativistic simulations of stellar core collapse to a proto-neutron star, using two different microphysical nonzero-temperature nuclear equations of state as well as an approximate description of deleptonization during the collapse phase. Investigating a wide variety of rotation rates and profiles as well as masses of the progenitor stars and both equations of state, we confirm in this very general setup the recent finding that a generic gravitational wave burst signal is associated with core bounce, already known as type I in the literature. The previously suggested type II (or ``multiple-bounce'') waveform morphology does not occur. Despite this reduction to a single waveform type, we demonstrate that it is still possible to constrain the progenitor and postbounce rotation based on a combination of the maximum signal amplitude and the peak frequency of the emitted gravitational wave burst. Our models include to sufficient accuracy the currently known necessary physics for the collapse and bounce phase of core-collapse supernovae, yielding accurate and reliable gravitational wave signal templates for gravitational wave data analysis. In addition, we assess the possibility of nonaxisymmetric instabilities in rotating nascent proto-neutron stars. We find strong evidence that in an iron core-collapse event the postbounce core cannot reach sufficiently rapid rotation to become subject to a classical bar-mode instability. However, many of our postbounce core models exhibit sufficiently rapid and differential rotation to become subject to the recently discovered dynamical instability at low rotation rates.

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Metadata

Authors
Dimmelmeier, H., Ott, C. D., Marek, A., & Janka, H.-T.
Venue
Physical Review D
Publisher
American Physical Society (APS)
Published
2008-09-19
Volume
78
Issue
6
ISSN
  • 0556-2821 (ISSN-L)
  • 1550-7998
  • 1550-2368
DOI
10.1103/physrevd.78.064056
OpenAlex
W2123692678
Cited by
263
References
35
FWCI
10.61
Type
journal article
Language
en
Open access
green

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