The proto-neutron-star dynamo. Viability and impediments
نویسندگان
چکیده
منابع مشابه
The proto – neutron – star dynamo — viability and impediments
We study convective motions taken from hydrodynamic simulations of rotating proto–neutron stars (PNSs) with respect to their ability to excite a dynamo instability which may be responsible for the giant neutron star magnetic fields. Since it is impossible to simulate the magnetic field evolution employing the actual magnetic Reynolds numbers (Rm) resulting from the hydrodynamic simulations, (sm...
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We study the equation of state of kaon-condensed matter including the effects of temperature and trapped neutrinos. Several different field-theoretical models for the nucleon-nucleon and kaon-nucleon interactions are considered. It is found that the order of the phase transition to a kaon-condensed phase, and whether or not Gibbs’ rules for phase equilibrium can be satisfied in the case of a fi...
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The proto-neutron star (PNS) is investigated for the rst time in the generalized thermo-statistics. The subextensive entropy for the power-law index q > 1 leads to much lower temperature in a core of PNS than the Clausius extensive entropy. Consequently, we can see a clear di¤erence between the mass-radius relation of PNS in the standard (q = 1:0) and generalized (q = 1:3) thermo-statistics. T...
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It is shown explicitly that a ferromagnetic transition of neutron star (NS) / proto-neutron star (PNS) matter in the β-equilibrium condition can actually occur if and only if the neutrinos remain trapped within the system, and perhaps it is necessary for the neutrinos / anti-neutrinos to carry some finite non-zero mass. It is also shown that electrons play a significant role in this transition ...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2005
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20042062