scholarly journals The gravitational-wave signature of core-collapse supernovae

2009 ◽  
Vol 26 (6) ◽  
pp. 063001 ◽  
Author(s):  
Christian D Ott
Keyword(s):  
Gravitational Wave ◽  
Core Collapse ◽  
Wave Signature

scholarly journals A new gravitational-wave signature of low-T/|W| instability in rapidly rotating stellar core collapse

2020 ◽  
Vol 493 (1) ◽  
pp. L138-L142 ◽  
Author(s):  
Shota Shibagaki ◽  
Takami Kuroda ◽  
Kei Kotake ◽  
Tomoya Takiwaki
Keyword(s):  
Gravitational Wave ◽  
Three Dimensional ◽  
Active Phase ◽  
Peak Frequency ◽  
Core Collapse ◽  
Time Modulation ◽  
General Relativistic ◽  
Wave Signature ◽  
The One ◽  
Strong Gravitational Wave

ABSTRACT We present results from a full general relativistic three-dimensional hydrodynamics simulation of rapidly rotating core collapse of a 70 M⊙ star with three-flavour spectral neutrino transport. We find a strong gravitational-wave (GW) emission that originates from the growth of the one- and two-armed spiral waves extending from the nascent proto-neutron star (PNS). The GW spectrogram shows several unique features that are produced by the non-axisymmetric instabilities. After bounce, the spectrogram first shows a transient quasi-periodic time modulation at ∼450 Hz. In the second active phase, it again shows the quasi-periodic modulation but with the peak frequency increasing with time, which continues until the final simulation time. From our detailed analysis, such features can be well explained by a combination of the so-called low-T/|W| instability and the PNS core contraction.

scholarly journals Maximum Entropy for Gravitational Wave Data Analysis: Inferring the Physical Parameters of Core‐Collapse Supernovae

2008 ◽  
Vol 678 (2) ◽  
pp. 1142-1157 ◽  
Author(s):  
T. Z. Summerscales ◽  
Adam Burrows ◽  
Lee Samuel Finn ◽  
Christian D. Ott
Keyword(s):  
Data Analysis ◽  
Gravitational Wave ◽  
Maximum Entropy ◽  
Physical Parameters ◽  
Core Collapse ◽  
Wave Data

scholarly journals Gravitational wave extraction in simulations of rotating stellar core collapse

2011 ◽  
Vol 83 (6) ◽  
Author(s):  
C. Reisswig ◽  
C. D. Ott ◽  
U. Sperhake ◽  
E. Schnetter
Keyword(s):  
Gravitational Wave ◽  
Core Collapse ◽  
Stellar Core

Dynamical versus isolated formation channels of gravitational wave sources

2018 ◽  
Vol 14 (S346) ◽  
pp. 397-416
Author(s):  
Michela Mapelli
Keyword(s):  
Black Holes ◽  
Neutron Stars ◽  
Gravitational Wave ◽  
Theoretical Models ◽  
Stellar Winds ◽  
Core Collapse ◽  
Dynamical Processes ◽  
New Approach ◽  
The Impact

AbstractWhat are the formation channels of merging black holes and neutron stars? The first two observing runs of Advanced LIGO and Virgo give us invaluable insights to address this question, but a new approach to theoretical models is required, in order to match the challenges posed by the new data. In this review, I discuss the impact of stellar winds, core-collapse and pair instability supernovae on the formation of compact remnants in both isolated and dynamically formed binaries. Finally, I show that dynamical processes, such as the runaway collision scenario and the Kozai-Lidov mechanism, leave a clear imprint on the demography of merging systems.

scholarly journals A MODEL FOR GRAVITATIONAL WAVE EMISSION FROM NEUTRINO-DRIVEN CORE-COLLAPSE SUPERNOVAE

2009 ◽  
Vol 707 (2) ◽  
pp. 1173-1190 ◽  
Author(s):  
Jeremiah W. Murphy ◽  
Christian D. Ott ◽  
Adam Burrows
Keyword(s):  
Gravitational Wave ◽  
Core Collapse ◽  
Wave Emission

scholarly journals Core-Collapse supernova gravitational-wave search and deep learning classification

2020 ◽  
Vol 1 (2) ◽  
pp. 025014 ◽  
Author(s):  
Alberto Iess ◽  
Elena Cuoco ◽  
Filip Morawski ◽  
Jade Powell
Keyword(s):  
Deep Learning ◽  
Gravitational Wave ◽  
Core Collapse ◽  
Core Collapse Supernova

scholarly journals Features of Accretion-phase Gravitational-wave Emission from Two-dimensional Rotating Core-collapse Supernovae

2019 ◽  
Vol 878 (1) ◽  
pp. 13 ◽  
Author(s):  
Michael A. Pajkos ◽  
Sean M. Couch ◽  
Kuo-Chuan Pan ◽  
Evan P. O’Connor
Keyword(s):  
Gravitational Wave ◽  
Core Collapse ◽  
Two Dimensional ◽  
Wave Emission
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