Results 31 to 40 of about 492,459 (298)
B-field Determination from Magnetoacoustic Oscillations in kHz QPO Neutron Star Binaries: Theory and Observations [PDF]
, 2001 We present a method for determining the B-field around neutron stars based on observed kHz and viscous QPO frequencies used in combination with the best-fit optical depth and temperature of a Comptonization model. In the framework of the transition layer
Bradshaw, C. F. +2 more
core +3 more sources
Neutron Star Crustal Interface Waves [PDF]
The Astrophysical Journal, 2005 The eigenfrequencies of nonradial oscillations are a powerful probe of a star's interior structure. This is especially true when there exist discontinuities such as at the neutron star (NS) ocean/crust boundary, as first noted by McDermott, Van Horn & Hansen.
Piro, Anthony L., Bildsten, Lars
openaire +2 more sources
Prospects for the detection of electromagnetic counterparts to gravitational wave events
, 2003 Various models for electromagnetic emissions correlated with the gravitational wave signals expected to be detectable by the current and planned gravitational wave detectors are studied.
Dahlen T., Julien Sylvestre
core +1 more source
Chemical Abundance Gradients in the Star-Forming Ring Galaxies
, 1999 Ring waves of star formation, propagating outwardly in the galactic disks, leave chemical abundance gradients in their wakes. We show that the relative [Fe/O] abundance gradients in ring galaxies can be used as a tool for determining the role of the SNIa
Eduard Vorobyov +11 more
core +1 more source
Nonspinning black hole-neutron star mergers: a model for the amplitude of gravitational waveforms [PDF]
, 2013 Black hole-neutron star binary mergers display a much richer phenomenology than black hole-black hole mergers, even in the relatively simple case - considered in this paper - in which both the black hole and the neutron star are nonspinning.
Berti, Emanuele +3 more
core +3 more sources
Gravitational waves from holographic neutron star mergers [PDF]
Physical Review D, 2020 6 pages, 6 figures, comments welcome, link to animation: https://sites.google.com/site/wilkevanderschee/neutron ...
Christian Ecker +3 more
openaire +6 more sources
Optical Color Gradients in Star-Forming Ring Galaxies
, 2001 We compute radial color gradients produced by an outwardly propagating circular wave of star formation and compare our results with color gradients observed in the classical ring galaxy, the ``Cartwheel''.
Korchagin, V. +2 more
core +2 more sources
Dark stars and gravitational waves: Topical review
Results 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
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Gravitational waves from neutron stars [PDF]
Proceedings of the International Astronomical Union, 2009 AbstractIn this presentation, I will outline some of the different ways that neutron stars can generate gravitational waves, discuss recent improvements in modeling the relevant scenarios in the context of improving detector sensitivity, and show how observations are beginning to put interesting “constraints” on our theoretical models.
openaire +1 more source
Observational Limit on Gravitational Waves from Binary Neutron Stars in the Galaxy [PDF]
, 1999 Using optimal matched filtering, we search 25 hours of data from the LIGO 40-meter prototype laser interferometric gravitational-wave detector for gravitational-wave chirps emitted by coalescing binary systems within our Galaxy. This is the first test of
A. Abramovici +35 more
core +3 more sources