Simplifying this picture we study the surface vibrations of a nonrotating neutron star in the model of a rigid-like inert core covered by the dynamical liquid-like layer; the effects of gravity are described in the Newtonian limit. The eigenfrequencies of surface pulsations are derived in the ...
Matter falling onto the surface of a neutron star would be accelerated to tremendous speed by the star's gravity. The force of impact would likely destroy the object's component atoms, rendering all its matter identical, in most respects, to the rest of the star.[citation needed] Properties...
The life of a star, no matter its size, is a balancing act between the inward "push" of gravity and the outward push provided by photons generated as they conductnuclear fusion, the forging of heavy atomic nuclei from light nuclei, at their cores. When stars run out of hydrogen to fuse...
In Earth's time frame, the estimated age of the neutron star in Cas A is only several hundred years, making it about ten times younger than other neutron stars with detected surface emission. Therefore, the Cas A neutron star gives a unique window into the early life of a cooling neutron...
and lower bound on the component masses. This limit was based on the low filling factor for PSR J1816+4510 estimated by Kaplan et al.47using the surface gravity determined by optical spectroscopy. Optical models for black widow and redback systems tend to have higher estimated filling factors ...
the collapse will not be stopped at neutron star densities because thepressure gradientcan never be steep enough to balance gravity. The collapse continues indefinitely, to infinite density, and a black hole is formed. Stars with original masses in the range 10–20M⊙form cores of around 1.4M⊙...
Neutron star transition to a strong-scalar-field state in tensor-scalar gravity”, Phys - Novak - 1998J. Novak. Neutron star transition to strong-scalar-field state in tensor-scalar gravity. Phys. Rev. D, 58:064019, 1998.Novak, J., "Neutron star transition to a strong-scalar-field ...
A neutron star can form when a fairly large star—roughly 8 to 11 times as massive as the Sun or larger—runs out of fuel to burn. The star's intense gravitational force causes it to collapse. Gravity squeezes together the protons and electrons in the core of the star. These protons ...
The problem of disk accretion onto the surface of a neutron star with a weak magnetic field at a luminosity exceeding several percent of the Eddington one is reduced to the problem of the braking of a hypersonic flow with a velocity that is 0.4–0.5 of the speed of light above the base ...
Artist’s depiction of a neutron star. Credit: ESO / L. Calçada New models of neutron stars show that their tallest mountains may be only fractions of millimeters high, due to the huge gravity on the ultra-dense objects. The research is presented today at the National Astronomy Meeting ...