Bulk viscosity and r-modes of neutron stars

Abstract

The bulk viscosity due to the non-leptonic process involving hyperons in $K^{-}$ condensed matter is discussed here. We find that the bulk viscosity is modified in a superconducting phase. Further, we demonstrate how the exotic bulk viscosity coefficient influences $r$-modes of neutron stars which might be sources of detectable gravitational waves.

4 page, 2 figures; presented in the Quark Matter 2008 held in Jaipur, India from 4-10 February, 2008; to be published in J. Phys. G

References in corpus (4)

• Color superconductivity in dense quark matter
• Effect of hyperon-hyperon interaction on bulk viscosity and r-mode instability in neutron stars
• Bulk viscosity in kaon condensed matter
• Exotic bulk viscosity and its influence on neutron star r-modes

Cited by in corpus (1)

• Heavy-flavour spectra in high energy nucleus-nucleus collisions