Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《中国天文和天体物理学报(英文版)》 2003-05
Add to Favorite Get Latest Update

Can the inner gap sparking take place in millisecond pulsars?

Hong-Guang Wang, Guo-Jun Qiao and Ren-Xin Xu Department of Astronomy, Peking University, Beijing 100871;  
The inner vacuum gap model has become the foundation stone of most theories on pulsar radio emission. The fundamental picture of this model is the sparking, which was conjectured to be induced by magnetic absorption of background gamma photons. However, a question is, can the sparking be triggered in the millisecond pulsars (MSPs) with magnetic fields (B) only about 108 G? We investigate this problem by including the pair production above the inner gap. Under the assumption that the magnetic field is dipolar, our results show the background gamma-ray emission can not be the key factor that triggers the sparking, at least not in MSPs with B - 108 G, if the temperature in the polar cap region is only so high as is observed ( 4 × 106 K). Some other mechanisms are required.
【Fund】: Supported by the National Natural Science Foundation of China
【CateGory Index】: P145.6
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved