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On the spin evolution of a proto-neutron star | | G. Camelio
; L. Gualtieri
; J.A. Pons
; V. Ferrari
; | | Date: |
10 Jan 2016 | | Abstract: | We study the evolution of the rotation rate of a proto-neutron star, born in
a core-collapse supernova, in the first seconds of its life. During this phase,
the star evolution can be described as a sequence of stationary configurations,
which we determine by solving the neutrino transport and the stellar structure
equations in general relativity. We include in our model the angular momentum
loss due to neutrino emission. We find that the requirement of a rotation rate
not exceeding the mass-shedding limit at the beginning of the evolution,
implies a strict bound on the rotation rate at later times. Moreover, assuming
that the proto-neutron star is born with a finite ellipticity, we determine the
emitted gravitational wave signal, and estimate its detectability by present
and future ground-based interferometric detectors. | | Source: | arXiv, 1601.2945 | | Services: | Forum | Review | PDF | Favorites | |
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