An inverse compton scattering model of pulsar emission. III.   Polarization

doi:10.1086/308824

CORC > 北京大学 > 地球与空间科学学院

	An inverse compton scattering model of pulsar emission. III. Polarization
	Xu, RX ; Liu, JF ; Han, JL ; Qiao, GJ
刊名	astrophysical journal
	2000
关键词	polarization pulsars : general radiation mechanisms : nonthermal STRONG MAGNETIC-FIELDS MHZ STATISTICAL SUMMARIES CIRCULAR-POLARIZATION EMPIRICAL-THEORY RADIO-EMISSION RADIATION POLARIMETRY FLUCTUATIONS PROFILES BEAMS
DOI	10.1086/308824
英文摘要	Qiao and his collaborators recently proposed an inverse Compton scattering model to explain radio emission from pulsars. In this paper, we investigate the polarization properties of pulsar emission in the model. First of all, using the lower frequency approximation, we derived the analytical amplitude of the inverse Compton scattered wave of a single electron in a strong magnetic field. We found that the outgoing radio emission of a single relativistic electron scattering off the "low-frequency waves" produced by gag sparking should be linearly polarized and have no circular polarization at all. However, considering the coherency of the emission from a bunch of electrons, we found that the outgoing radiation from the inner part of the emission beam, i.e., that from the lower emission altitudes, preferentially has to have circular polarization. Computer simulations show that the polarization properties, such as the sense reversal of circular polarization near the pulse center, the S-shape of position angle swing of the linear polarization, and a strong linear polarization in conal components, can be reproduced in the ICS model.; Astronomy & Astrophysics; SCI(E); 26; ARTICLE; 1; 354-364; 535
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/213634]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Xu, RX,Liu, JF,Han, JL,et al. An inverse compton scattering model of pulsar emission. III. Polarization[J]. astrophysical journal,2000.
APA	Xu, RX,Liu, JF,Han, JL,&Qiao, GJ.(2000).An inverse compton scattering model of pulsar emission. III. Polarization.astrophysical journal.
MLA	Xu, RX,et al."An inverse compton scattering model of pulsar emission. III. Polarization".astrophysical journal (2000).