LONDON: New research suggests that nuclear pasta possibly plays a role in a neutron star’s conductivity, which causes the degrading of the star’s magnetic field, in turn affecting the stars’ spin rate.
Neutron stars are massive stars with high densities, with most of that density inside their cores. However, there is more conventional matter on a neutron star’s outer edges. Nuclear pasta acts as a middle layer, or crust, holding these two areas of matter together.
Nuclear pasta is so-named because of the variety of shapes that it takes and comes with classifications much like the pasta we eat: there is lasagna nuclear pasta, penne nuclear pasta and gnocchi nuclear pasta.
These shapes, though, are more than just fun names. Nuclear pasta could be the key to understanding how neutron stars work, as well as lending an understanding to their unique features.
This new study suggests that some nuclear pasta have defective shapes and that these defects could affect the conductivity of neutron stars to the point that the star’s crust cools down, which causes its magnetic field to fall apart.
“We have discovered possible defects that may exist in the otherwise regular nuclear pasta shapes, and these defects could decrease the electrical and thermal conductivity of neutron stars,” says C.J. Horowitz from Indiana University.
