Radiative viscosity of neutron stars

被引：7
|
作者：
Yang, Shu-Hua [1 ]
Zheng, Xiao-Ping [1 ]
Pi, Chun-Mei [1 ]
机构：
[1] Huazhong Normal Univ, Inst Astrophys, Wuhan 430079, Peoples R China
来源：
PHYSICS LETTERS B | 2010年 / 683卷 / 4-5期
关键词：
Neutron stars; Bulk viscosity; Radiative viscosity; STRANGE QUARK MATTER; BULK VISCOSITY; INSTABILITY; VIBRATIONS;
D O I：
10.1016/j.physletb.2009.12.038
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We Study non-linear effects of radiative viscosity of npe matter in neutron stars for both direct Urca process and modified Urca process, and find that non-linear effects will decrease the ratio of radiative viscosity to bulk viscosity from 1.5 to 0.5 (for direct Urca process) and 0.375 (for modified Urca process). Which means that for small oscillations of neutron star, the large fraction of oscillation energy is emitted as neutrinos; but for large enough ones, bulk viscous dissipation dominates. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：255 / 258
页数：4
相关论文
共 50 条
  • [1] Bulk viscosity of neutron stars
    Gupta, VK
    Wadhwa, A
    Singh, S
    Anand, JD
    [J]. PRAMANA-JOURNAL OF PHYSICS, 1997, 49 (04): : 443 - 453
  • [2] Bulk viscosity of neutron stars
    V K Gupta
    A Wadhwa
    S Singh
    J D Anand
    [J]. Pramana, 1997, 49 : 443 - 453
  • [3] Bulk viscosity of superfluid neutron stars
    Gusakov, Mikhail E.
    [J]. PHYSICAL REVIEW D, 2007, 76 (08)
  • [4] Bulk viscosity in neutron stars with hyperon cores
    Ofengeim, D. D.
    Gusakov, M. E.
    Haensel, P.
    Fortin, M.
    [J]. PHYSICAL REVIEW D, 2019, 100 (10)
  • [5] Bulk viscosity in neutron stars from hyperons
    van Dalen, ENE
    Dieperink, AEL
    [J]. PHYSICAL REVIEW C, 2004, 69 (02): : 8
  • [6] Radiative decay of a massive Dirac neutrino in neutron stars
    Éminov P.A.
    Ternov A.I.
    Levchenko K.G.
    Vshivtsev V.A.
    [J]. Russian Physics Journal, 2000, 43 (6) : 460 - 464
  • [7] RADIATIVE NEUTRON CAPTURE IN FUSION OF HEAVY ELEMENTS IN STARS
    SHORIN, VS
    KAPCHIGA.SP
    KOLESOV, VE
    [J]. SOVIET JOURNAL OF NUCLEAR PHYSICS-USSR, 1968, 6 (04): : 558 - &
  • [8] Monster Radiative Shocks in the Perturbed Magnetospheres of Neutron Stars
    Beloborodov, Andrei M.
    [J]. ASTROPHYSICAL JOURNAL, 2023, 959 (01):
  • [9] Bulk viscosity and r-modes of neutron stars
    Chatterjee, Debarati
    Bandyopadhyay, Debades
    [J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2008, 35 (10)
  • [10] Shear viscosity due to phonons in superfluid neutron stars
    Manuel, Cristina
    Tolos, Laura
    [J]. PHYSICAL REVIEW D, 2011, 84 (12):
12345