Affordable Access

deepdyve-link
Publisher Website

Phases of Dense Quark Matter and the Structure of Compact Objects

Authors
  • Steiner, Andrew W.
Type
Preprint
Publication Date
Jan 11, 2006
Submission Date
Jan 11, 2006
Identifiers
DOI: 10.1063/1.2220434
arXiv ID: nucl-th/0601038
Source
arXiv
License
Unknown
External links

Abstract

The presence of quark matter in neutron stars may affect several neutron star observables and the neutrino signal in core-collapse supernovae. These observables are sensitive to the phase of quark matter that is present in compact objects. We present the first calculation of the phase structure of dense quark matter which includes a six-fermion color-superconducting interaction and show that the effect of this term can destabilize the pairing interaction, favoring phases where fewer quarks are paired. In turn, this modification of the phase structure can modify the neutrino signal, the structure of the neutron star, and the long-term cooling. We also show that, contrary to the 20-year old paradigm of the surface structure of the "strange-quark stars", the surface of these objects may consist of nuggets of strange quark matter screened by the electron gas.

Report this publication

Statistics

Seen <100 times