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2016ApJ...823...97C - Astrophys. J., 823, 97 (2016/June-1)

The influence of quantum vacuum friction on pulsars.


Abstract (from CDS):

We first revisit the energy loss mechanism known as quantum vacuum friction (QVF), clarifying some of its subtleties. Then we investigate the observables that could easily differentiate QVF from the classical magnetic dipole radiation for pulsars with accurately measured braking indices (n). We show that this is particularly the case for the time evolution of a pulsar's magnetic dipole direction ( {dot}φ ) and surface magnetic field ( {dot}B_{0} ). As is well known in the context of the classic magnetic dipole radiation, n , which, for instance, leads to {dot}B_{0}\gt 0 ( {dot}φ\gt 0 ) when ph (B0) is constant. On the other hand, we show that QVF can result in very different predictions with respect to those above. Finally, even if {dot}B_{0} has the same sign in both of the aforementioned models for a pulsar, then, for a given ph, we show that they give rise to different associated timescales, which could be another way to falsify QVF.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): pulsars: general - stars: magnetic field - stars: neutron

Simbad objects: 10

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