Anisotropic emission of neutrino and gravitational-wave signals from rapidly rotating core-collapse supernovae
Anisotropic emission of neutrino and gravitational-wave signals from rapidly rotating core-collapse supernovae
复制标题
快速旋转核心塌陷超新星中微子和引力波信号的各向异性发射
DOI:
10.1093/mnrasl/sly008
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发表时间:
2018
影响因子:
--
通讯作者:
Kotake Kei
中科院分区:
文献类型:
--
作者:
Takiwaki Tomoya ;Kotake Kei
We present analysis on neutrino and GW signals based on three-dimensional (3D) core-collapse supernova simulations of a rapidly rotating 27 M⊙star. We find a new neutrino signature that is produced by a lighthouse effect where the spinning of strong neutrino emission regions around the rotational axis leads to quasi-periodic modulation in the neutrino signal. Depending on the observer's viewing angle, the time modulation will be clearly detectable in IceCube and the future Hyper-Kamiokande. The GW emission is also anisotropic where the GW signal is emitted, as previously identified, most strongly towards the equator at rotating core-collapse and bounce, and the non-axisymmetric instabilities in the postbounce phase lead to stronger GW emission towards the spin axis. We show that these GW signals can be a target of LIGO-class detectors for a Galactic event. The origin of the postbounce GW emission naturally explains why the peak GW frequency is about twice of the neutrino modulation frequency. We point out that the simultaneous detection of the rotation-induced neutrino and GW signatures could provide a smoking-gun signature of a rapidly rotating proto-neutron star at the birth.
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DOI:
10.1088/0004-637x/698/2/1174
发表时间:
2007
期刊:
The Astrophysical Journal
影响因子:
--
作者:
M. Liebendörfer;S. Whitehouse;Tobias Fischer
通讯作者:
Tobias Fischer
DOI:
10.1146/annurev-nucl-102115-044747
发表时间:
2016-02
影响因子:
12.4
作者:
H. Janka;T. Melson;A. S. M. Astrophysics;Garching;Physik Dept.;Tum
通讯作者:
H. Janka;T. Melson;A. S. M. Astrophysics;Garching;Physik Dept.;Tum
DOI:
--
发表时间:
2020
期刊:
影响因子:
--
作者:
今野北斗;A. Harada
通讯作者:
A. Harada
影响因子:
3.5
作者:
S. Hild;A. Freise;M. Mantovani;S. Chelkowski;J. Degallaix;R. Schilling
通讯作者:
R. Schilling
DOI:
10.1088/0004-637x/694/1/664
发表时间:
2007-08
期刊:
The Astrophysical Journal
影响因子:
--
作者:
A. Marek;H. Janka
通讯作者:
A. Marek;H. Janka