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  Gravitational waves from very massive stars collapsing to a black hole

Uchida, H., Shibata, M., Takahashi, K., & Yoshida, T. (2019). Gravitational waves from very massive stars collapsing to a black hole. Physical Review D, 99(4): 041302. doi:10.1103/PhysRevD.99.041302.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-023D-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-0241-1
Genre: Journal Article

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 Creators:
Uchida, Haruki, Author
Shibata, Masaru1, Author              
Takahashi , Koh, Author
Yoshida , Takashi, Author
Affiliations:
1Computational Relativistic Astrophysics, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_2541714              

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Free keywords: Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE
 Abstract: We compute gravitational waves emitted by the collapse of a rotating very massive star (VMS) core leading directly to a black hole in axisymmetric numerical-relativity simulations. The evolved rotating VMS is derived by a stellar evolution calculation and its initial mass and the final carbon-oxygen core mass are $320M_\odot$ and $\approx 150M_\odot$, respectively. We find that for the moderately rapidly rotating cases, the peak strain amplitude and the corresponding frequency of gravitational waves are $\sim 10^{-22}$ and $f \approx 300$--600\,Hz for an event at the distance of $D=50$~Mpc. Such gravitational waves will be detectable only for $D \lesssim 10$~Mpc by second generation detectors, advanced LIGO, advanced VIRGO, and KAGRA, even if the designed sensitivity for these detectors is achieved. However, third-generation detectors will be able to detect such gravitational waves for an event up to $D \sim 100$~Mpc. The detection of the gravitational-wave signal will provide a potential opportunity for verifying the presence of VMSs with mass $\gtrsim 300M_\odot$ and their pair-unstable collapse in the universe.

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 Dates: 2019-01-242019
 Publication Status: Published in print
 Pages: 5 pages
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1901.08260
URI: http://arxiv.org/abs/1901.08260
DOI: 10.1103/PhysRevD.99.041302
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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : American Physical Society
Pages: - Volume / Issue: 99 (4) Sequence Number: 041302 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: https://pure.mpg.de/cone/journals/resource/111088197762258