Gravitational radiation from axisymmetric rotational core collapse

Kei Kotake, Shoichi Yamada, Katsuhiko Sato

    Research output: Contribution to journalArticle

    67 Citations (Scopus)

    Abstract

    We perform a series of two-dimensional hydrodynamic simulations of the rotational collapse of a supernova core in axisymmetry. We employ a realistic equation of state (EOS) and take into account electron, capture and neutrino transport by the so-called leakage scheme. It is an important step to apply the realistic EOS coupled with microphysics to 2D simulations for computing gravitational radiation in rotational core collapse. We use the quadrupole formula to calculate the amplitudes and the waveforms of the gravitational wave assuming Newtonian gravity. With these computations, we extend the conventional category of the gravitational waveforms. Our results show that the peak amplitudes of the gravitational wave are mostly within the sensitivity range of laser interferometers such as TAMA and the first LIGO for a source at a distance of 10 kpc. Furthermore, we find that the amplitudes of the second peaks are within the detection limit of the first LIGO for the source, and first point out the importance of the detection, since it will give us information as to the angular momentum distribution of evolved massive stars.

    Original languageEnglish
    Article number044023
    Pages (from-to)440231-440237
    Number of pages7
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume68
    Issue number4
    Publication statusPublished - 2003 Aug 15

    Fingerprint

    gravitational waves
    LIGO (observatory)
    Radiation
    Gravitational Waves
    Equation of State
    Waveform
    waveforms
    equations of state
    Axisymmetry
    Laser Interferometer
    Detection Limit
    Supernovae
    massive stars
    Angular Momentum
    electron capture
    Leakage
    Neutrinos
    supernovae
    Hydrodynamics
    Star

    ASJC Scopus subject areas

    • Physics and Astronomy(all)
    • Nuclear and High Energy Physics
    • Mathematical Physics

    Cite this

    Gravitational radiation from axisymmetric rotational core collapse. / Kotake, Kei; Yamada, Shoichi; Sato, Katsuhiko.

    In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 68, No. 4, 044023, 15.08.2003, p. 440231-440237.

    Research output: Contribution to journalArticle

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