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.

引用

页数：10

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