4 papers
Flash from the Past: New Gamma-Ray Constraints on Light CP-even Scalar from SN1987A
Yue Yu, Writasree Maitra, P. S. Bhupal Dev +4
We derive new constraints on light CP-even scalars using old gamma-ray observations in the direction of SN1987A by the Solar Maximum Mission (SMM) satellite. Light scalars can be a…
Bulk viscosity from neutron decays to dark baryons in neutron star matter
Steven P. Harris, C. J. Horowitz
The existence of a dark baryon that mixes with the neutron leads to the possibility of neutron decay into a dark sector. Such dark decays have been studied as possibly relevant for…
Symmetry energy expansion and the peak value of the bulk viscosity
Steven P Harris
The symmetry energy expansion is a useful way to parametrize the properties of dense matter near nuclear saturation density, and much work has been done to connect physical quantit…
Suppression of composition -modes in chemically-equilibrating warm neutron stars
Tianqi Zhao, Peter B. Rau, Alexander Haber +3
We investigate the impact of chemical equilibration and the resulting bulk viscosity on non-radial oscillation modes of warm neutron stars at temperatures up to MeV, r…