NDLI: Polarization spectra of synchrotron radiation and the plasma composition of relativistic jets

Content Provider	Springer Nature Link
Author	Zheleznyakov, V. V. Koryagin, S. A.
Copyright Year	2002
Abstract	We investigate the problem of determining the plasma composition of relativistic jets in blazars and microquasars from the polarization frequency spectra of their synchrotron radiation. The effect of plasma composition on this radiation is attributable to a change in the structure of the ordinary and extraordinary waves in plasma, depending on the presence of a nonrelativistic electron-proton component in it and on the type of relativistic particles (electrons, positrons). The structure of the normal waves determines the properties of the observed radiation and primarily the shape of the polarization frequency spectrum. Our analytic calculations of the polarization spectra for simple models of jets with a uniform magnetic field and with a magnetic-field shear revealed characteristic features in the polarization spectra. These features allow us to differentiate between the synchrotron radiation from an admixture of relativistic particles in a cold plasma and the radiation from a relativistic plasma. However, definitive conclusions regarding the relativistic plasma composition (electrons or electron-positron pairs) can be reached only by a detailed analysis of the polarization frequency spectra that will be obtained in future radioastronomical studies with high angular and frequency resolutions.
Starting Page	727
Ending Page	744
Page Count	18
File Format	PDF
ISSN	10637737
Journal	Astronomy Letters
Volume Number	28
Issue Number	11
e-ISSN	15626873
Language	English
Publisher	Nauka/Interperiodica
Publisher Date	2002-01-01
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	jet theory active galactic nuclei quasars radio galaxies Astronomy Astrophysics
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics Space and Planetary Science

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