scholarly journals Circular polarization of gravitational waves from non-rotating supernova cores: a new probe into the pre-explosion hydrodynamics

2018 ◽  
Vol 477 (1) ◽  
pp. L96-L100 ◽  
Author(s):  
Kazuhiro Hayama ◽  
Takami Kuroda ◽  
Kei Kotake ◽  
Tomoya Takiwaki
Keyword(s):  
Gravitational Waves ◽  
Circular Polarization

scholarly journals Exploring the string axiverse and parity violation in gravity with gravitational waves

2018 ◽  
Vol 27 (09) ◽  
pp. 1850096 ◽  
Author(s):  
Daiske Yoshida ◽  
Jiro Soda
Keyword(s):  
Gravitational Waves ◽  
Circular Polarization ◽  
Parametric Resonance ◽  
Parity Violation ◽  
Coupling Constant ◽  
Coherent Oscillation ◽  
Chern Simons ◽  
Current Bound

We show that the parametric resonance of gravitational waves (GWs) occurs due to the axion coherent oscillation and the circular polarization of GWs is induced by the Chern–Simons coupling. However, we have never observed these signatures in the data of GWs. Using this fact, we give stringent constraints on the Chern–Simons coupling constant [Formula: see text] and the abundance of the light string axion. In particular, we improved the current bound [Formula: see text] by many orders of magnitude.

scholarly journals Circular polarization of gravitational waves from early-Universe helical turbulence

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Tina Kahniashvili ◽  
Axel Brandenburg ◽  
Grigol Gogoberidze ◽  
Sayan Mandal ◽  
Alberto Roper Pol
Keyword(s):  
Gravitational Waves ◽  
Circular Polarization ◽  
Early Universe ◽  
Helical Turbulence

The Search for Gravitational Waves

2008 ◽  
Vol 30 ◽  
pp. 15-25
Author(s):  
A.M. Sintes
Keyword(s):  
Gravitational Waves
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