scholarly journals Stochastic background of gravitational waves generated by eccentric neutron star binaries

2015 ◽  
Vol 449 (3) ◽  
pp. 2700-2705 ◽  
Author(s):  
Edgard F. D. Evangelista ◽  
José C. N. de Araujo
Keyword(s):  
Neutron Star ◽  
Gravitational Waves ◽  
Stochastic Background

scholarly journals Gravitational wave signals of dark matter freeze-out

2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
Danny Marfatia ◽  
Po-Yan Tseng
Keyword(s):  
Phase Transition ◽  
Dark Matter ◽  
Gravitational Waves ◽  
Order Phase Transition ◽  
First Order ◽  
Stochastic Background ◽  
First Order Phase Transition ◽  
Relic Abundance ◽  
First Order Phase ◽  
Freeze Out

Abstract We study the stochastic background of gravitational waves which accompany the sudden freeze-out of dark matter triggered by a cosmological first order phase transition that endows dark matter with mass. We consider models that produce the measured dark matter relic abundance via (1) bubble filtering, and (2) inflation and reheating, and show that gravitational waves from these mechanisms are detectable at future interferometers.

scholarly journals Spectral analysis of gravitational waves from binary neutron star merger remnants

2017 ◽  
Vol 96 (6) ◽  
Author(s):  
Francesco Maione ◽  
Roberto De Pietri ◽  
Alessandra Feo ◽  
Frank Löffler
Keyword(s):  
Spectral Analysis ◽  
Neutron Star ◽  
Gravitational Waves ◽  
Binary Neutron Star

scholarly journals Initial-data contribution to the error budget of gravitational waves from neutron-star binaries

2016 ◽  
Vol 94 (4) ◽  
Author(s):  
Antonios Tsokaros ◽  
Bruno C. Mundim ◽  
Filippo Galeazzi ◽  
Luciano Rezzolla ◽  
Kōji Uryū
Keyword(s):  
Neutron Star ◽  
Initial Data ◽  
Gravitational Waves ◽  
Error Budget

scholarly journals Modern Topics in Scalar Field Cosmology

2020 ◽  
Author(s):  
◽  
Cari Powell
Keyword(s):  
Dark Matter ◽  
Scalar Field ◽  
Gravitational Wave ◽  
Gravitational Waves ◽  
Mass Range ◽  
Distant Future ◽  
Field System ◽  
Stochastic Background ◽  
Scalar Field Cosmology

The aim of this research is to use modern techniques in scalar field Cosmol-ogy to produce methods of detecting gravitational waves and apply them to current gravitational waves experiments and those that will be producing results in the not too distant future. In the first chapter we discuss dark matter and some of its candidates, specifically, the axion. We then address its relationship with gravitational waves. We also discuss inflation and how it can be used to detect gravitational waves. Chapter 2 concentrates on constructing a multi field system of axions in order to increase the mass range of the ultralight axion, putting it into the observation range of pul-sar timing arrays. Chapter 3 discusses non-attractor inflation which is able to enhance stochastic background gravitational waves at scales that allows them to be measured by gravitational wave experiments. Chapter 4 uses a similar method to chapter 3 and applies it to 3-point overlap functions for tensor, scalar and a combination of the two polarisations.

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