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Pulsar electrodynamics: an unsolved problem
文献类型：期刊论文
| 作者 | Melrose, D. B.1; Yuen, R.2
|
| 刊名 | JOURNAL OF PLASMA PHYSICS
 |
| 出版日期 | 2016-04-01 |
| 卷号 | 82页码:635820202 |
| ISSN号 | 0022-3778 |
| 英文摘要 | Pulsar electrodynamics is reviewed emphasizing the role of the inductive electric field in an oblique rotator and the incomplete screening of its parallel component by charges, leaving 'gaps' with E-parallel to not equal 0. The response of the plasma leads to a self -consistent electric field that complements the inductive electric field with a potential field leading to an electric drift and a polarization current associated with the total field. The electrodynamic models determine the charge density, p, and the current density, J; charge starvation refers to situations where the plasma cannot supply p, resulting in a gap and associated particle acceleration and pair creation. It is pointed out that a form of current starvation also occurs implying a new class of gaps. The properties of gaps are discussed, emphasizing that static models are unstable, the role of large -amplitude longitudinal waves and the azimuthal dependence that arises across a gap in an oblique rotator. Wave dispersion in a pulsar plasma is reviewed briefly, emphasizing its role in radio emission. Pulsar radio emission mechanisms are reviewed, and it is suggested that the most plausible is a form of plasma emission. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Fluids & Plasmas |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | LINEAR ACCELERATION EMISSION ; ROTATION-POWERED PULSARS ; IN-CELL SIMULATIONS ; RADIO-EMISSION ; MAGNETIC-FIELD ; WAVE-PROPAGATION ; NEUTRON-STARS ; POLAR CAPS ; PARTICLE-ACCELERATION ; CURVATURE RADIATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000376015000022 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/1395]  |
| 专题 | 脉冲星研究团组 新疆天文台_射电天文研究室 |
| 作者单位 | 1.Univ Sydney, Sch Phys, SIfA, Sydney, NSW 2006, Australia 2.Chinese Acad Sci, Xinjiang Astron Observ, 40-5 South Beijing Rd, Urumqi 830011, Xinjiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Melrose, D. B.,Yuen, R.. Pulsar electrodynamics: an unsolved problem[J]. JOURNAL OF PLASMA PHYSICS,2016,82:635820202. |
| APA | Melrose, D. B.,&Yuen, R..(2016).Pulsar electrodynamics: an unsolved problem.JOURNAL OF PLASMA PHYSICS,82,635820202. |
| MLA | Melrose, D. B.,et al."Pulsar electrodynamics: an unsolved problem".JOURNAL OF PLASMA PHYSICS 82(2016):635820202. |
入库方式： OAI收割
来源：新疆天文台
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