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Wave modes in the magnetospheres of pulsars and magnetars
Wang, Chen; Lai, Dong
2007-05-21
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume377Issue:3Pages:1095-1112
AbstractWe study the wave propagation modes in the relativistic streaming pair plasma of the magnetospheres of pulsars and magnetars, focusing on the effect of vacuum polarization. We show that the combined plasma and vacuum polarization effects give rise to a vacuum resonance, where 'avoided mode crossing' occurs between the extraordinary mode and the (superluminous) ordinary mode. When a photon propagates from the vacuum-polarization-dominated region at small radii to the plasma-dominated region at large radii, its polarization state may undergo significant change across the vacuum resonance. We map out the parameter regimes (e.g. field strength, plasma density and Lorentz factor) under which the vacuum resonance occurs and examine how wave propagation is affected by the resonance. Some possible applications of our results are discussed, including high-frequency radio emission from pulsars and possibly magnetars, and optical/infrared emission from neutron star surfaces and inner magnetospheres.
KeywordPlasmas Polarization Waves Stars : Magnetic Fields Pulsars : General
DOI10.1111/j.1365-2966.2007.11531.x
Indexed BySCI
Language英语
WOS IDWOS:000246367000012
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8913
Collection射电天文研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Cornell Univ, Dept Astron, Ctr Radiophys & Space Res, Ithaca, NY 14853 USA
Recommended Citation
GB/T 7714
Wang, Chen,Lai, Dong. Wave modes in the magnetospheres of pulsars and magnetars[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2007,377(3):1095-1112.
APA Wang, Chen,&Lai, Dong.(2007).Wave modes in the magnetospheres of pulsars and magnetars.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,377(3),1095-1112.
MLA Wang, Chen,et al."Wave modes in the magnetospheres of pulsars and magnetars".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 377.3(2007):1095-1112.
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