Results 131 to 140 of about 4,836 (143)

A hot-Jupiter progenitor on a super-eccentric retrograde orbit. [PDF]

open access: yesNature
Gupta AF   +59 more
europepmc   +1 more source

Solving non-Hermitian physics for optical manipulation on a quantum computer. [PDF]

open access: yesLight Sci Appl
Fan YA   +8 more
europepmc   +1 more source

Oscillating soliton stars

Physical Review Letters, 1991
We study a new type of self-gravitating object, described by a soliton solution to the coupled system of the Einstein equation and a matter field equation. The solution describing the self-gravitating object is not static but, instead, is periodic, with both the spacetime geometry and the matter field oscillating in time.
Edward Seidel, Wai Mo Suen
openaire   +3 more sources

Oscillations of Quark Stars

2000
We study the relativistic quadrupole oscillations (ι= 2) of strange quark stars by calculating their quasi-normal modes, and we thus explore the possibility of using these oscillation frequencies and damping times to differentiate among relativistic polytropic stars, neutron stars, pure light-quark stars, and hybrid neutron stars with quark cores.
C. W. Yip, Ming Chung Chu, P. T. Leung
openaire   +2 more sources

Oscillations in roAp stars

2008
A brief introduction to the rapidly oscillating Ap (roAp) stars and a review of their properties is presented. Evidence which strongly suggests that the roAp stars pulsate obliquely in high-overtone, low-degree modes is shown. This review then concentrates on four problems of particular interest to asteroseismologists: 1) The interpretation of the ...
openaire   +2 more sources

Anharmonic Oscillations of Massive Stars [PDF]

open access: possiblePublications of the Astronomical Society of Australia, 1968
The equation of motion, derived from the basic Lagrangian equations for the conservation of momentum and the conservation of energy, for non-linear non-adiabatic radial oscillations of a pulsating star takes the form
openaire   +1 more source

On the non-radial oscillations of a star

Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences, 1991
A complete theory of the non-radial oscillations of a static spherically symmetric distribution of matter, described in terms of an energy density and an isotropic pressure, is developed, ab initio , on the premise that the oscillations are excited by incident gravitational waves.
Subrahmanyan Chandrasekhar   +1 more
openaire   +2 more sources

Non-radial oscillations of a star

Astrophysics and Space Science, 1990
The non-radial oscillations of the homogeneous model of a star have been investigated taking into account the variation of the ratio of the specific heats. The stability of the oscillations thus set in is established.
openaire   +2 more sources

Oscillation Periods of Neutron Stars

Nature, 1965
Effect of three-body nuclear potential and two neutron-neutron potentials on radial oscillation periods of neutron ...
A. G. W. Cameron   +2 more
openaire   +2 more sources

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