Rapid spin deceleration of magnetized protoneutron stars via asymmetric neutrino emission

被引：8

作者：

Maruyama, Tomoyuki ^{[1
,2
]}

Hidaka, Jun ^{[2
]}

Kajino, Toshitaka ^{[2
,3
]}

Yasutake, Nobutoshi ^{[4
]}

Kuroda, Takami ^{[2
]}

Takiwaki, Tomoya ^{[2
]}

Cheoun, Myung-Ki ^{[2
,5
]}

Ryu, Chung-Yeol ^{[6
]}

Mathews, Grant J. ^{[7
]}

机构：

[1] Nihon Univ, Coll Bioresource Sci, Fujisawa, Kanagawa 2528510, Japan

[2] Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan

[3] Univ Tokyo, Grad Sch Sci, Dept Astron, Bunkyo Ku, Tokyo 1130033, Japan

[4] Chiba Inst Technol, Dept Phys, Narashino, Chiba 2750023, Japan

[5] Soongsil Univ, Dept Phys, Seoul 156743, South Korea

[6] Hanyang Univ, Gen Educ Curriculum Ctr, Seoul 133791, South Korea

[7] Univ Notre Dame, Dept Phys, Ctr Astrophys, Notre Dame, IN 46556 USA

来源：

PHYSICAL REVIEW C | 2014年 / 89卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

ANGULAR-MOMENTUM; DRIVEN SUPERNOVA; SIMULATIONS; COLLAPSE; FIELD; CONDENSATION; STRANGENESS; EXPLOSIONS; VELOCITIES; TRANSPORT;

D O I：

10.1103/PhysRevC.89.035801

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 estimate the maximum possible contribution to the early spin deceleration of protoneutron stars because of asymmetric neutrino absorption. We calculate the neutrino scattering in the context of a fully relativistic mean field theory and estimate for the first time the spin deceleration of neutron stars because of asymmetric neutrino absorption in a toroidal magnetic field configuration. We find that the deceleration can be much larger for asymmetric neutrino absorption in a toroidal magnetic field than the braking due to magnetic dipole radiation. Nevertheless, the effect is estimated to be less than the angular momentum loss due to the transport of magnetically locked material in the neutrino energized wind.

引用

页数：6

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