Results 21 to 30 of about 30,962 (264)
Gravitational waves from the first stars
16 pages, 8 ...
Sandick, Pearl +3 more
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Dark stars and gravitational waves: Topical review
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
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Waves in thin oceans on oblate neutron stars [PDF]
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
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
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
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
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]
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]
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
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Density discontinuity of a neutron star and gravitational waves [PDF]
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

