SIMBAD references

2000ApJ...533L.127V - Astrophys. J., 533, L127-L130 (2000/April-3)

Rearrangement of the Fermi surface of dense neutron matter and the direct urca cooling of neutron stars.

VOSKRESENSKY D.N., KHODEL V.A., ZVEREV M.V. and CLARK J.W.

Abstract (from CDS):

It is proposed that a rearrangement of single-particle degrees of freedom may occur in a portion of the quantum-fluid interior of a neutron star. Such a rearrangement is associated with the pronounced softening of the spin-isospin collective mode which, under increasing density, leads to pion condensation. Arguments and estimates based on fundamental relations of many-body theory show that one realization of this phenomenon could produce very rapid cooling of the star via a direct nucleon Urca process displaying a T5 dependence on temperature.

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Journal keyword(s): Dense Matter - Radiation Mechanisms: Thermal - Stars: Interiors - Stars: Neutron

Simbad objects: 7

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