A neutron star has mass and radius .

PHYSICS · Multi-part · Fermi University Physics · Relativity & Gravitation · Relativistic stars and compact objects · Relativistic stars and compact objects

Stars from the Inside, Ch Neutron stars and pulsars: the densest matter, the maximum mass and the spinning magnet

Problem

A neutron star has mass M=1.8 M⊙M = 1.8\,M_\odot and radius R=11 kmR = 11\,\mathrm{km}. ((a)) Compute its compactness C=GM/Rc2C = GM/Rc^2. ((b)) Compute its surface redshift zz, using 1+z=(1−2C)−1/21+z = (1-2C)^{-1/2}.

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