Spin-down of neutron stars by neutrino emission

Abstract

We study the spin-down of a neutron star during its early stages due to the neutrino emission. The mechanism we consider is the subsequent collisions of the produced neutrinos with the outer shells of the star. We find that this mechanism can indeed slow down the star rotation but only in the first tens of seconds of the core formation, which is when the appropriate conditions of flux and collision rate are met. We find that this mechanism can extract less than 1% of the star angular momentum, a result which is much less than previously estimated by other authors.

Nonthermal signature of the Unruh effect in field mixing

“…Mixing transformations in a non-inertial frame may serve as a tool for analyzing a number of other current questions dealing with such a topic: the spin-down of a rotating star by neutrino emission [27] and the disagreement between the inverse β-decay rates of accelerated protons in comoving and inertial frames [28], for instance, are some of the most relevant problems appearing in this framework. The latter aspect, in particular, is discussed, providing a possible resolution for the above incompatibility.…”

Neutrino Interaction with Background Matter in a Noninertial Frame

“…Indeed, if we study a neutrino in a rotating pulsar, then r 10 km and ω 10 3 s −1 . Thus (ωr) 2 1.1 × 10 −3 is a small parameter. Therefore Eq.…”

Neutrino interaction with matter in a noninertial frame

“…For example, the possibility of the pulsar spin down by the neutrino emission and interaction with rotating matter was recently discussed in ref. [6]. It should be noted that besides elementary particle physics, various processes in noninertial frames are actively studied in condensed matter physics.…”