The Relation between the Magnetic Field and Spin Period of a Millisecond Pulsar  

作　　者：PAN Yuan-Yue WANG Na ZHANG Cheng-Min 潘元月;王娜;张承民(Xinjiang Astronomical Observatories,Chinese Academy of Sciences,Urumqi 830011;National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012)

机构地区：[1]Xinjiang Astronomical Observatories,Chinese Academy of Sciences,Urumqi 830011 [2]National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012

出　　处：《Chinese Physics Letters》2013年第10期237-240,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 11173034;the National Basic Research Program of China(2012CB821800).

摘　　要：Based on the function of the accretion induced magnetic decay,the analytical relationship between the magnetic field B and spin period P of a millisecond pulsar(MSP)is investigated,from which the minimum spin period of about one millisecond can be obtained.With this minimum spin period,the range of the neutron star(NS)radius is constrained in comparison with the measured spin period of MSP.Furthermore,we also study the relation between the spin period and the accretion massΔM of the NS,and find that the minimum spin period is achieved with the accretion mass of about-0.2M⊙,while the bottom magnetic field of about 108 G is obtained.

关 键 词：SECOND RADIUS DECAY 

分 类 号：O57[理学—粒子物理与原子核物理]