Collective effects in $ν\barν$ synchrotron radiation from neutron stars

Details Collective effects in $ν\barν$ synchrotron radiation from neutron stars Collective effects in $ν\barν$ synchrotron radiation from neutron stars

1997-10-23

arxiv.org/abs/astro-ph/9710257v2

Phys.Rev. D59 (1999) 043002

Astronomy and Astrophysics

Astrophysics

14 pages, 2 figures

Scientific paper

10.1103/PhysRevD.59.043002

We have considered collective effects in $\nu \bar{\nu}$ synchrotron radiation from an ultrarelativistic degenerate electron gas in neutron stars with strong magnetic fields. For this problem we apply a calculation method which explicitly makes use of the fact that the radiating electron moves semi-classically, but takes into account the interaction among particles in a quantum way. First we apply this method to calculate $\nu \bar{\nu}$ synchrotron radiation by an ultrarelativistic electron in vacuum and we compare this result with that obtained previously by other techniques. When a degenerate plasma is considered, we show that collective effects lead to an essential enhancement (about three times) of the vector weak-current contribution to neutrino pair emissivity.

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