磁星中直接乌卡过程对其超高磁感应强度的影响  

Effects of the Direct Urca Process on Superhigh Magnetic Induction in Magnetar

作　　者：宋冬灵[1] 黄淼淼[1] 

机构地区：[1]信息工程大学理学院,郑州450001

出　　处：《新乡学院学报》2012年第6期504-505,509,共3页Journal of Xinxiang University

摘　　要：介绍了磁星形成超高磁感应强度的可能机制及磁星中直接乌卡过程对其超高磁感应强度的影响.磁星的超高磁感应强度可能是由3P2库伯对在外磁场作用下的磁矩排列引起的,在3P2库伯对被电子俘获反应中产生的高能中子破坏而消失.已经发现某些磁星与超新星残骸有关联,磁星的超高磁感应强度也可能来源于爆炸前的超新星.The paper introduces the possible formation mechanism of super-high magnetic induction in a magnetar and states the effects of the direct Urca process on the field. The super-high magnetic induction of magnetars may originate from the aligned magnetic moments of the 3P2 Cooper pairs by action of external magnetic fields and disappear by the high-energy neutrons generated 3P2 Cooper pairs being destroyed. It was found that some magentar is connected to wreckages of supernova, so the super-highe magnetic induction may originate from before supemova explosion.

关 键 词：磁星 超高磁感应强度 电子俘获 直接乌卡过程 电子费米能 

分 类 号：P142[天文地球—天体物理]