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pro vyhledávání: '"Friedman, John L."'
Autor:
Friedman, John L.
These notes are self-contained, with the first 7 chapters used in a one-semester course with recommended texts by Wald, by Misner, Thorne and Wheeler, and by Schutz. In its treatment of topics covered in these standard texts, the presentation here ty
Externí odkaz:
http://arxiv.org/abs/2308.09826
Publikováno v:
International Journal of Modern Physics D, 29 (2020) 2041015-632
The first inspiral of two neutron stars observed in gravitational waves was remarkably close, allowing the kind of simultaneous gravitational wave and electromagnetic observation that had not been expected for several years. Their merger, followed by
Externí odkaz:
http://arxiv.org/abs/2005.14135
Publikováno v:
J. Phys.: Conf. Ser. 932 012045 (2017)
We discuss magnetic field enhancement by unstable r-modes (driven by the gravitational radiation reaction force) in rotating stars. In the absence of a magnetic field, gravitational radiation exponentially increases the r-mode amplitude $\alpha$, and
Externí odkaz:
http://arxiv.org/abs/1712.09224
Publikováno v:
Phys. Rev. D 96, 124008 (2017)
At second order in perturbation theory, the unstable r-mode of a rotating star includes growing differential rotation whose form and growth rate are determined by gravitational-radiation reaction. With no magnetic field, the angular velocity of a flu
Externí odkaz:
http://arxiv.org/abs/1707.09419
Publikováno v:
Phys. Rev. D 95, 083014 (2017)
A principal goal of gravitational-wave astronomy is to constrain the neutron star equation of state (EOS) by measuring the tidal deformability of neutron stars. The tidally induced departure of the waveform from that of point-particle (or spinless bi
Externí odkaz:
http://arxiv.org/abs/1701.03797
Publikováno v:
Phys. Rev. D 93, 024023 (2016)
At second order in perturbation theory, the $r$-modes of uniformly rotating stars include an axisymmetric part that can be identified with differential rotation of the background star. If one does not include radiation-reaction, the differential rota
Externí odkaz:
http://arxiv.org/abs/1503.08864
Publikováno v:
Phys. Rev. D 90, 084031 (2014)
We consider the self-force on a charged particle moving in a curved spacetime with a background electromagnetic field, extending previous studies to situations in which gravitational and electromagnetic perturbations are comparable. The formal expres
Externí odkaz:
http://arxiv.org/abs/1406.5112
Publikováno v:
Phys. Rev. D 90, 024064, 2014
We calculate the singular field of an accelerated point particle (scalar charge, electric charge or small gravitating mass) moving on an accelerated (non-geodesic) trajectory in a generic background spacetime. Using a mode-sum regularization scheme,
Externí odkaz:
http://arxiv.org/abs/1404.7039