PORTA: POlarized Radiative TrAnsfer
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F20%3A00559390" target="_blank" >RIV/67985815:_____/20:00559390 - isvavai.cz</a>
Result on the web
<a href="https://gitlab.com/polmag/PORTA" target="_blank" >https://gitlab.com/polmag/PORTA</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
PORTA: POlarized Radiative TrAnsfer
Original language description
PORTA solves three-dimensional non-equilibrium radiative transfer problems with massively parallel computers. The code can be usednfor modeling the spectral line polarization produced by the scattering of anisotropic radiation and the Hanle and Zeeman effects assuming complete frequency redistribution, either using two-level or multilevel atomic models. The numerical method of solution used to find the self-consistent values of the atomic density matrix at each point of the model’s Cartesian grid is based on Jacobi iterative scheme and on a short-characteristics formal solver of the Stokes-vector transfer equation that uses monotonic Bézier interpolation. The code can also be used to compute the linear polarization of the continuum radiation caused by Rayleigh and Thomson scattering in 3D models of stellar atmospheres, and to solve the simpler 3D radiative transfer problem of unpolarized radiation in multilevel systems. PORTA accepts/produces HDF5 input/output and offers an advanced graphical user interface.
Czech name
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Czech description
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Classification
Type
R - Software
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
<a href="/en/project/GPP209%2F12%2FP741" target="_blank" >GPP209/12/P741: Spectropolarimetric modeling and diagnostics of magnetic fields in the upper atmosphere of the quiet Sun</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Internal product ID
PORTA
Technical parameters
Program v jazyce C pro výpočty 3D NLTE přenosu záření v plasmatu hvězných atmosfér se započtením polarizace záření vhodný pro masivně paralelní výpočty. Součástí je i grafické uživatelské rozhraní (Python) pro vizualizaci výsledků.
Economical parameters
vyvinutý software pro základní výzkum
Owner IČO
67985815
Owner name
Astronomický ústav AV ČR, v. v. i.