Asymmetric Neutrino Reaction in Magnetized Proto-Neutron Stars in Fully Relativistic Approach

被引：1
|
作者：
Maruyama, Tomoyuki [1 ,2 ]
Kajino, Toshitaka [2 ,3 ]
Yasutake, Nobutoshi [2 ,3 ]
Cheoun, Myung-Ki [2 ,4 ]
Ryu, Chung-Yeol [4 ]
机构：
[1] Nihon Univ, Coll Bioresource Sci, Fujisawa, Kanagawa 2520880, Japan
[2] Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan
[3] Univ Tokyo, Dept Astron, Tokyo 1130033, Japan
[4] Soongsil Univ, Dept Phys, Seoul 156743, South Korea
来源：
HADRON NUCLEAR PHYSICS 2011 (HNP2011): QUARKS IN HADRONS, NUCLEI, AND HADRONIC MATTER | 2012年 / 20卷
关键词：
MEAN-FIELD THEORY; SUPERNOVA EXPLOSIONS; MATTER; CONDENSATION;
D O I：
10.1051/epjconf/20122004003
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We calculate asymmetric neutrino absorption and scattering cross sections on hot and dense magnetized neutron-star matter including hyperons in fully relativistic mean-field theory. The absorption/scattering cross sections are suppressed/enhanced incoherently in the direction of the magnetic field B = B (z) over cap. The asymmetry is 2-4% at the matter density rho(0) <= rho(B) = 3 rho(0) and temperature T <= 40MeV for B = 2 x 10(17)G. Then we solve the Boltzmann equation for the neutrino transport in 1D attenuation approximation, and get the result that the kick velocity becomes about 300 km/s for the proto-neutron star with 168 solar mass at T = 20MeV.
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页数：10
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