Results 21 to 30 of about 30,962 (264)

Gravitational waves from the first stars

open access: yesPhysical Review D, 2006
16 pages, 8 ...
Sandick, Pearl   +3 more
openaire   +3 more sources

Dark stars and gravitational waves: Topical review

open access: yesResults in Physics, 2023
Motivated by recent observations of compact binary gravitational wave events reported by LIGO/Virgo/KAGRA, we review the basics of dark and hybrid stars and examine their probabilities as mimickers for black holes and neutron stars. This review aims to survey this exciting topic and offer the necessary tools for the research study at the introductory ...
Kilar Zhang   +4 more
openaire   +3 more sources

Waves in thin oceans on oblate neutron stars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2020
ABSTRACT Waves in thin fluid layers are important in various stellar and planetary problems. Due to rapid rotation such systems will become oblate, with a latitudinal variation in the gravitational acceleration across the surface of the object.
Anna L Watts   +2 more
openaire   +4 more sources

Existence and asymptotics of traveling wave fronts for a coupled nonlocal diffusion and difference system with delay

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2019
In this paper, we consider a general study of a recent proposed hematopoietic stem cells model. This model is a combination of nonlocal diffusion equation and difference equation with delay.
Abdennasser Chekroun
doaj   +1 more source

Neutron Star Binary Mergers: The Legacy of GW170817 and Future Prospects

open access: yesUniverse, 2022
In 2015, the Advanced Laser Interferometer Gravitational-wave Observatory (LIGO) and Advanced Virgo began observing the Universe in a revolutionary way. Gravitational waves from cosmic sources were detected for the first time, confirming their existence ...
Giulia Stratta, Francesco Pannarale
doaj   +1 more source

Continuous Gravitational Wave Emissions from Neutron Stars with Pinned Superfluids in the Core

open access: yesUniverse, 2022
We investigate the effect of a pinned superfluid component on the gravitational wave emissions of a rotating neutron star. The pinning of superfluid vortices to the flux-tubes in the outer core (where the protons are likely to form a type-II ...
Brynmor Haskell   +2 more
doaj   +1 more source

Probing the Interior of Neutron Stars with Gravitational Waves

open access: yesPhysical Review Letters, 2005
8 pages, 4 figures, 1 ...
Tsui, L. K., Leung, P. T.
openaire   +3 more sources

Gravitational waves from the remnants of the first stars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2016
Abstract Gravitational waves (GWs) provide a revolutionary tool to investigate yet unobserved astrophysical objects. Especially the first stars, which are believed to be more massive than present-day stars, might be indirectly observable via the merger of their compact remnants. We develop a self-consistent, cosmologically representative,
Hartwig T   +6 more
openaire   +3 more sources

Wave optics for rotating stars [PDF]

open access: yesPhysical Review D
Gravitational lensing in wave optics is a rich field combining caustic singularities, general relativity and interference phenomena. We present a detailed evaluation of wave optics effects resulting from the frame-dragging of a rotating star modeled by a Lense-Thirring spacetime.
Béatrice Bonga   +2 more
openaire   +3 more sources

Density discontinuity of a neutron star and gravitational waves [PDF]

open access: yesPhysical Review D, 2001
We calculate quasi-normal f- and g-modes of a neutron star with density discontinuity, which may appear in a phase transition at extreme high density. We find that discontinuity will reflect largely on the f-mode, and that the g-mode could also be important for a less massive star.
Sotani, Hajime   +2 more
openaire   +2 more sources

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