Wednesday, 18 September 2013

Neutron stars have so much gravity that the maximum height of a 'mountain' is 5mm!

A neutron star forms from the collapsing core of a massive star immediately following the star's exhaustion of it's fusion energy reserves. The outflow of radiation from the stellar core suddenly switches off and the core can no longer support the overlying layers against the inward force of gravity.

The rapidly mounting pressure of the infalling layers squeezes the electrons and protons of the core together to create neutrons and neutrinos. The neutrinos immediately escape into space but the neutrons crowd closer and closer together until they reach the density of an atomic nucleus. The tallest possible mountains on a neutron star can only be about 5mm tall due to their gravity.

At this stage, if the compressed stellar core is less than the Oppenheimer-Volkoff limit of about 3 solar masses, the neutrons are able to resist further collapse. Otherwise, a black hole forms. The star's collapsing middle layers rebound against the newly-formed solid neutron core. This generates a shock wave which heats and blows off the surface layers as a Type II supernova explosion.

Left behind is a rapidly spinning neutron star which has a strong magnetic field with poles that are usually aligned with the pole's of the star's rotation. Two oppositely directed beams of radio waves escape from the poles and sweep around like a lighthouse beam, producing a series of regular radio blips that can be detected from Earth. The result is a pulsar.

1 comment:

  1. Read & circulate .

    This confirms the alternative theory of gravity. The very space-time concept, on which theories of relativity are founded, has been mathematically, theoretically & experimentally proved as baseless and openly challenged on the basis of published scientific articles. Since the very space-time concept has been proved as baseless the question of curvature of space-time being correct does not arise. Gravity has been shown to be an electromagnetic force as foreseen by Maxwell due to the curl/vortices of aether (the electric dipoles) in the published article 'Revised Foundation of Theory of Everything: Non-living Things & Living Things' (; Sep 2010) Revised version of this article is available on vixra & General Science Journal in my profile. Standing open challenge could be seen at and