scholarly journals Hangup effect in unequal mass binary black hole mergers and further studies of their gravitational radiation and remnant properties

2018 ◽  
Vol 97 (8) ◽  
Author(s):  
James Healy ◽  
Carlos O. Lousto
Keyword(s):  
Black Hole ◽  
Gravitational Radiation ◽  
Unequal Mass ◽  
Binary Black Hole

scholarly journals Gravitational radiation driven capture in unequal mass black hole encounters

2017 ◽  
Vol 96 (8) ◽  
Author(s):  
Yeong-Bok Bae ◽  
Hyung Mok Lee ◽  
Gungwon Kang ◽  
Jakob Hansen
Keyword(s):  
Black Hole ◽  
Gravitational Radiation ◽  
Unequal Mass

scholarly journals Who Ordered That? Unequal-mass Binary Black Hole Mergers Have Larger Effective Spins

2021 ◽  
Vol 922 (1) ◽  
pp. L5
Author(s):  
Thomas A. Callister ◽  
Carl-Johan Haster ◽  
Ken K. Y. Ng ◽  
Salvatore Vitale ◽  
Will M. Farr
Keyword(s):  
Black Hole ◽  
Odds Ratio ◽  
Hierarchical Analysis ◽  
Mass Ratio ◽  
Unequal Mass ◽  
Degree Correlation ◽  
Binary Black Hole ◽  
Formation And Evolution ◽  
The Mean

Abstract Hierarchical analysis of binary black hole (BBH) detections by the Advanced LIGO and Virgo detectors has offered an increasingly clear picture of their mass, spin, and redshift distributions. Fully understanding the formation and evolution of BBH mergers will require not just the characterization of these marginal distributions, but the discovery of any correlations that exist between the properties of BBHs. Here, we hierarchically analyze the ensemble of BBHs discovered by LIGO and Virgo with a model that allows for intrinsic correlations between their mass ratios q and effective inspiral spins χ eff. At 98.7% credibility, we find that the mean of the χ eff distribution varies as a function of q, such that more unequa-mass BBHs exhibit systematically larger χ eff. We find a Bayesian odds ratio of 10.5 in favor of a model that allows for such a correlation over one that does not. Finally, we use simulated signals to verify that our results are robust against degeneracies in the measurements of q and χ eff for individual events. While many proposed astrophysical formation channels predict some degree correlation between spins and mass ratio, these predicted correlations typically act in an opposite sense to the trend we observationally identify in the data.

scholarly journals Unequal mass binary black hole plunges and gravitational recoil

2007 ◽  
Vol 24 (12) ◽  
pp. S33-S42 ◽  
Author(s):  
Frank Herrmann ◽  
Ian Hinder ◽  
Deirdre Shoemaker ◽  
Pablo Laguna
Keyword(s):  
Black Hole ◽  
Unequal Mass ◽  
Binary Black Hole

Properties of dynamical space-times

2018 ◽  
Author(s):  
Michele Maggiore
Keyword(s):  
General Relativity ◽  
Black Hole ◽  
Angular Momentum ◽  
Gravitational Radiation ◽  
Hamiltonian Formulation ◽  
Black Hole Mass ◽  
Adm Mass ◽  
Binary Black Hole

An introduction to advanced tools of General Relativity, later used in the study of binary black-hole coalescences. Hamiltonian formulation of General Relativity, ADM mass and angular momentum, irreducible black-hole mass, Newman-Penrose scalars and gravitational radiation.

scholarly journals Optimization of model independent gravitational wave search for binary black hole mergers using machine learning

2021 ◽  
Vol 104 (2) ◽  
Author(s):  
T. Mishra ◽  
B. O’Brien ◽  
V. Gayathri ◽  
M. Szczepańczyk ◽  
S. Bhaumik ◽  
...  
Keyword(s):  
Machine Learning ◽  
Black Hole ◽  
Gravitational Wave ◽  
Binary Black Hole ◽  
Model Independent
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