What is the surface of neutron star?

Answer 1

Let me see. Although theoretical, neutron stars do not retain the same plasma like properties of regular stars (which are nuclear powerhouses composed of plasma through a critical balancing act of fusion and gravity).

Neutron stars are almost entirely made up of highly compacted neutrons and typically have a solar mass of 1.35 to 2.1. The surface of a neutron star is composed of ordinary atomic nuclei crushed into a solid lattice with a sea of electrons dlowing through the gaps between them.

The surface is known to be a fluid which has been theorized to be a phenomena known as "super fluid" or a fluid which has no flow or viscosity. below the atmosphere is known to be an extremely hard yet smooth crust due to its gravitational field. It has also been discussed that the core of the neutron star also contains super fluid and has been theorized to contain a matter known as crystal carbonite.