Polarized Radiative Transfer Equation in Some Geometries of Elliptic Type
نویسندگان
چکیده
منابع مشابه
Analytical solution of the radiative transfer equation for polarized light
A new formalism is introduced for the transfer of polarized radiation. Stokes parameters are shown to be four– vectors in a Minkowski-like space and, most strikingly, the radiative transfer equation (RTE) turns out to be an infinitesimal transformation under the Poincaré (plus dilatations) group. A solution to the transfer equation as a finite element of this group is proposed.
متن کاملSome Approximations to the Radiative Transfer Equation and Their Applications
To my parents, Laiping Sheng and Chengai Shi, who offered me unconditional love and support all the way since the beginning of my studies. This brief dedication is not enough room to express my gratitude that they are my parents. ii ACKNOWLEDGEMENTS I would like to thank several people for their help making this thesis possible. First and foremost, my greatest thankfulness goes to my advisor, P...
متن کاملPolarized Radiative Transfer in Solar Atmosphere
The observations indicate the existence of linear polarization in the hydrogen Hα spectral line observed during the solar flare events. This emission of polarized radiation is of the order of 5% and is usually explained as a consequence of collisions of hydrogen atoms with the beam of fast protons coming from coronal regions. This article presents a brief overview of the recent solar flare pola...
متن کاملMultigrid Methods for Polarized Radiative Transfer
A new iterative method for non-LTE multilevel polarized radiative transfer in hydrogen lines is presented. Iterative methods (such as the Jacobi method) tend to damp out high-frequency components of the error fast, but converges poorly due to slow reduction of low-frequency components. The idea is to use a set of differently coarsed grids to reduce both the short-and long-period errors. This le...
متن کاملSunrise: Polychromatic Dust Radiative Transfer in Arbitrary Geometries
This paper describes sunrise, a parallel, free Monte-Carlo code for the calculation of radiation transfer through astronomical dust. sunrise uses an adaptivemesh refinement grid to describe arbitrary geometries of emitting and absorbing/scattering media, with spatial dynamical range exceeding 10, and it can efficiently generate images of the emerging radiation at arbitrary points in space. In a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the International Astronomical Union
سال: 2011
ISSN: 1743-9213,1743-9221
DOI: 10.1017/s1743921311027475