Effect of magnetic field decay on the chemical heating of cooling neutron stars

作     者：周霞 康缈 王娜 

作者机构：Xinjiang Astronomical Observatory Chinese Academy of Sciences Key Laboratory of Radio Astronomy Chinese Academy of Sciences College of Physics and Electronics Henan University 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2013年第37卷第8期

页      面：39-44页

核心收录：

学科分类：0820[工学-石油与天然气工程] 080706[工学-化工过程机械] 07[理学] 08[工学] 0807[工学-动力工程及工程热物理] 070401[理学-天体物理] 082003[工学-油气储运工程] 0704[理学-天文学] 

基　　金：Supported by National Natural Science Foundation of China (11003034, 11103002) West Light Foundation of Chinese Academy of Sciences (XBBS200920) National Basic Research Program of China (973 Program 2009CB824800) Partially Supported by Key Laboratory of Radio Astronomy, CAS 

主　　题：neutron star thermal evolution chemical heating magnetic field decay 

摘      要：The effect of magnetic field decay on the chemical heating and thermal evolution of neutron stars is discussed in this paper. Our main goal is to study how the chemical heating mechanism and thermal evolution are changed by the field decay and how the magnetic field decay is modified by the thermal evolution. We compare stars cooling with chemical heating with one without chemical heating and find that the decay of the magnetic field is delayed significantly by the chemical heating. We find that the effect of chemical heating has been suppressed through the decaying magnetic field by the spin-down of the stars at a later stage. Compared with typical chemical heating, we find the decay of the magnetic field can even cause the surface temperature to turn down at an older age. When we discuss the cooling of neutron stars, we should consider the coupling effect of the magnetic field and the rotational evolution of neutron stars on the heating mechanisms.