Bulk viscosity and r-modes of neutron stars
Debarati Chatterjee, Debades Bandyopadhyay
TL;DR
This paper investigates how bulk viscosity, affected by hyperons and superconductivity, influences r-modes in neutron stars, potentially impacting gravitational wave signals.
Contribution
It introduces the effects of hyperon-induced bulk viscosity and superconductivity on neutron star r-modes, highlighting their role in gravitational wave emission.
Findings
Bulk viscosity is modified in superconducting phases.
Exotic bulk viscosity influences neutron star r-modes.
Potential implications for gravitational wave detection.
Abstract
The bulk viscosity due to the non-leptonic process involving hyperons in 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 -modes of neutron stars which might be sources of detectable gravitational waves.
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