Observability of Neutron Stars with Quarks

Abstract

Recent Chandra observations have raised expectations that the objects RX J185635-3754 and 3C58 are either bare strange quark stars or stars with extended quark cores. However, these observations can also be interpreted in terms of normal neutron stars. Essential requirements for either explanation are that they simultaneously account for the observed (i) spectral features (i.e., thermal or nonthermal, possible lines), (ii) bounds on the inferred mass (M) and radius (R), and (iii) the cooling curves (effective temperatures T and luminosities L vs. age). Compact stars offer the promise of delineating QCD at finite baryon density (Lattimer and Prakash, 2001) in a fashion complementary to relativistic heavy ion collider experiments, which largely address the finite temperature, but baryon poor regime.

4 pages, 1 figure, uses espcrc1.sty (included)

Cited by in corpus (15)

• Strange Quark Matter and Compact Stars
• Chiral symmetry and density wave in quark matter
• Constraining values of bag constant for strange star candidates
• Hybrid stars with color superconductivity within a nonlocal chiral quark model
• Computation of the structure of magnetized strange quark star
• Calculation of the Structure Properties of a Strange Quark Star in the Presence of Strong Magnetic Field Using a Density Dependent Bag Constant
• Diquark condensation effects on hot quark star configurations
• Maximum Mass of the Hot Neutron Star with the Quark Core
• Finite temperature calculations for the bulk properties of strange star using a many-body approach
• Influence of strong magnetic field on the structure properties of strange quark stars
• Observables of spheroidal magnetized Strange Stars
• Proto-Strange Quark Star Structure
• The effect of dynamical quark mass in the calculation of strange quark star structure
• Chandrasekhar limit for rotating quark stars
• Structure of hot strange quark stars: an NJL model approach at finite temperature