scholarly journals Oscillation modes of rapidly rotating neutron stars in scalar-tensor theories of gravity

2017 ◽  
Vol 96 (6) ◽  
Author(s):  
Stoytcho S. Yazadjiev ◽  
Daniela D. Doneva ◽  
Kostas D. Kokkotas
Keyword(s):  
Neutron Stars ◽  
Oscillation Modes ◽  
Theories Of Gravity

scholarly journals Rapidly rotating neutron stars in scalar-tensor theories of gravity

2013 ◽  
Vol 88 (8) ◽  
Author(s):  
Daniela D. Doneva ◽  
Stoytcho S. Yazadjiev ◽  
Nikolaos Stergioulas ◽  
Kostas D. Kokkotas
Keyword(s):  
Neutron Stars ◽  
Theories Of Gravity

scholarly journals NEUTRON STAR MATTER EQUATION OF STATE AND GRAVITATIONAL WAVE EMISSION

2005 ◽  
Vol 20 (31) ◽  
pp. 2335-2349 ◽  
Author(s):  
OMAR BENHAR
Keyword(s):  
Experimental Study ◽  
Neutron Star ◽  
Equation Of State ◽  
Neutron Stars ◽  
Gravitational Waves ◽  
Neutron Star Matter ◽  
Oscillation Modes ◽  
Nonradial Oscillation ◽  
Macroscopic Objects ◽  
Wave Emission

The EOS of strongly interacting matter at densities ten to fifteen orders of magnitude larger than the typical density of terrestrial macroscopic objects determines a number of neutron star properties, including the pattern of gravitational waves emitted following the excitation of nonradial oscillation modes. This paper reviews some of the approaches employed to model neutron star matter, as well as the prospects for obtaining new insights from the experimental study of gravitational waves emitted by neutron stars.

scholarly journals Gravitational-Wave Asteroseismology as a Tool to Reveal the Equation of State of Relativistic Neutron Stars

2002 ◽  
Vol 185 ◽  
pp. 612-615
Author(s):  
Johannes Ruoff
Keyword(s):  
Neutron Star ◽  
Equation Of State ◽  
Neutron Stars ◽  
Gravitational Wave ◽  
Gravitational Waves ◽  
Oscillation Modes

AbstractThe equation of state (EOS) is still the big unknown in the physics of neutron stars. An accurate measurement of both the mass and the radius of a neutron star would put severe constraints on the range of possible EOSs. I discuss how the parameters of the oscillation modes of a neutron star, measured from the emitted gravitational waves, can in principle be used to infer its mass and radius, and thus reveal its EOS.

scholarly journals Continuous Gravitational Waves from Neutron Stars: Current Status and Prospects

Universe ◽  
2019 ◽  
Vol 5 (11) ◽  
pp. 217 ◽  
Author(s):  
Magdalena Sieniawska ◽  
Michał Bejger
Keyword(s):  
Neutron Stars ◽  
Gravitational Waves ◽  
Gravitational Radiation ◽  
Elastic Strain ◽  
Electromagnetic Waves ◽  
Current Status ◽  
Free Precession ◽  
Oscillation Modes ◽  
Unstable Oscillation ◽  
The Universe

Gravitational waves astronomy allows us to study objects and events invisible in electromagnetic waves. It is crucial to validate the theories and models of the most mysterious and extreme matter in the Universe: the neutron stars. In addition to inspirals and mergers of neutrons stars, there are currently a few proposed mechanisms that can trigger radiation of long-lasting gravitational radiation from neutron stars, such as e.g., elastically and/or magnetically driven deformations: mountains on the stellar surface supported by the elastic strain or magnetic field, free precession, or unstable oscillation modes (e.g., the r-modes). The astrophysical motivation for continuous gravitational waves searches, current LIGO and Virgo strategies of data analysis and prospects are reviewed in this work.

scholarly journals Non-radial oscillation modes as a probe of density discontinuities in neutron stars

2003 ◽  
Vol 338 (2) ◽  
pp. 389-400 ◽  
Author(s):  
G. Miniutti ◽  
J. A. Pons ◽  
E. Berti ◽  
L. Gualtieri ◽  
V. Ferrari
Keyword(s):  
Neutron Stars ◽  
Radial Oscillation ◽  
Oscillation Modes
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