Three-dimensional simulations of scattering polarization and the Hanle effect in MHD chromospheric models

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F15%3A00455751" target="_blank" >RIV/67985815:_____/15:00455751 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1017/S1743921315005050" target="_blank" >http://dx.doi.org/10.1017/S1743921315005050</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1017/S1743921315005050" target="_blank" >10.1017/S1743921315005050</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Three-dimensional simulations of scattering polarization and the Hanle effect in MHD chromospheric models

Popis výsledku v původním jazyce

Scattering line polarization and the Hanle effect are among the most important mechanisms for diagnostics of the solar and stellar atmospheres. The fact that real stellar atmospheres are horizontally inhomogeneous makes the spectral synthesis and interpretation very challenging because the effect of thermodynamic fluctuations on spectral line polarization is entangled with the action of magnetic fields. This applies to the spatially resolved as well as to the averaged spectra. The necessary step towards the interpretation of such spectra is to study the line formation in sufficiently realistic 3D MHD models and compare the synthetic spectra with observations. This paper gives an overview of recent progress in the field of 3D NLTE synthesis of polarized spectral lines resulting from investigations with the radiative transfer code PORTA.

Název v anglickém jazyce

Three-dimensional simulations of scattering polarization and the Hanle effect in MHD chromospheric models

Popis výsledku anglicky

Scattering line polarization and the Hanle effect are among the most important mechanisms for diagnostics of the solar and stellar atmospheres. The fact that real stellar atmospheres are horizontally inhomogeneous makes the spectral synthesis and interpretation very challenging because the effect of thermodynamic fluctuations on spectral line polarization is entangled with the action of magnetic fields. This applies to the spatially resolved as well as to the averaged spectra. The necessary step towards the interpretation of such spectra is to study the line formation in sufficiently realistic 3D MHD models and compare the synthetic spectra with observations. This paper gives an overview of recent progress in the field of 3D NLTE synthesis of polarized spectral lines resulting from investigations with the radiative transfer code PORTA.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

<a href="/cs/project/GPP209%2F12%2FP741" target="_blank" >GPP209/12/P741: Spektropolarimetrické modelování a diagnostika magnetických polí v horní atmosféře klidného Slunce</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Polarimetry: From the Sun to Stars and Stellar Environments

ISBN

9781107078550

ISSN

—

e-ISSN

—

Počet stran výsledku

8

Strana od-do

360-367

Název nakladatele

Cambridge University Press

Místo vydání

Cambridge

Místo konání akce

Punta Leona

Datum konání akce

30. 11. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000456243000056