Volume 449, Number 2, April II 2006
|Page(s)||597 - 608|
|Section||Interstellar and circumstellar matter|
|Published online||21 March 2006|
Polarization of radiation scattered in magnetized turbulent envelopes
Instituto Nacional de Astrofísica, Óptica y Electrónica, Apartado Postal 51 y 216, CP 72000, Pue. México e-mail: firstname.lastname@example.org
2 Main Astronomical Observatory of the Russian Academy of Sciences, Pulkovo, St.Petersburg 196140, Russia
Accepted: 25 November 2005
We consider the single scattering of the non-polarized radiation of a central star on the electrons of a plasma circumstellar envelope. We assume that such an envelope is magnetized and consists of a turbulent plasma. Two types of envelopes are considered: a spherical envelope with the dipole magnetic field and a cone-like jet with the radial magnetic field. It is shown that the existence of turbulent motions in the envelopes drastically changes the polarization degree spectrum and the positional angle spectrum of scattered radiation compared to the non-turbulent case. The difference in spectra can be used to estimate the ratio for the energy of magnetic fluctuations to the energy of a regular magnetic field.
Key words: polarization / magnetic fields
© ESO, 2006
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.