Pulsar magnetospheres: Numerical simulations of large amplitude electron-positron oscillations

被引：15

作者：

da Costa, AA

Diver, DA ^{[1
]}

Stewart, GA

机构：

[1] Univ Glasgow, Dept Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland

[2] Inst Super Tecn, Ctr Electordinam, P-1049001 Lisbon, Portugal

来源：

ASTRONOMY & ASTROPHYSICS | 2001年 / 366卷 / 01期

关键词：

pulsars : general; plasmas;

D O I：

10.1051/0004-6361:20000031

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The numerical simulation of non-linear electron-positron oscillations is reported showing the evolution of the electric field and the plasma number density for large amplitude disturbances. Sharp density gradients and changes in the oscillation frequency are demonstrated, and a new analytical framework is presented to illustrate these phenomena, particularly in the context of pulsar plasmas.

引用

页码：129 / 137

页数：9

共 12 条

[1]

Boyd T. J. M., 1969, PLASMA DYNAMICS

[2]

COHEN JM, 1971, ASTROPHYS LETT COMM, V7, P213

[3]

daCosta AA, 1997, MON NOT R ASTRON SOC, V284, P1

[4] PULSAR ELECTRODYNAMICS - CYLINDRICAL MODEL AND RADIO AND GAMMA-RAY RADIATION [J].