C.D.S. - SIMBAD4 rel 1.7 - 2021.04.21CEST21:50:44

2003A&A...410L..33B - Astronomy and Astrophysics, volume 410, L33-36 (2003/11-2)

Mean-field dynamo action in protoneutron stars.


Abstract (from CDS):

We have investigated the turbulent mean-field dynamo action in protoneutron stars that are subject to convective and neutron finger instabilities. While the first one develops mostly in the inner regions of the star, the second one is favoured in the outer regions, where the Rossby number is much smaller and a mean-field dynamo action is more efficient. By solving the mean-field induction equation we have computed the critical spin period below which no dynamo action is possible and found it to be ∼1s for a wide range of stellar models. Because this critical period is substantially longer than the characteristic spin period of very young pulsars, we expect that a mean-field dynamo will be effective for most protoneutron stars.

Abstract Copyright:

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

Simbad objects: 2

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Number of rows : 2

N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
1 PSR J1210-5226 Psr 12 10 00.88 -52 26 28.4           ~ 210 1
2 PSR J1824-2452A Psr 18 24 32.009 -24 52 11.10           ~ 444 2

    Equat.    Gal    SGal    Ecl

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