The Hanle Effect of Ly? in a Magnetohydrodynamic Model of the Solar Transition Region

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F12%3A00388118" target="_blank" >RIV/67985815:_____/12:00388118 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1088/2041-8205/758/2/L43" target="_blank" >http://dx.doi.org/10.1088/2041-8205/758/2/L43</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/2041-8205/758/2/L43" target="_blank" >10.1088/2041-8205/758/2/L43</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Hanle Effect of Ly? in a Magnetohydrodynamic Model of the Solar Transition Region

Popis výsledku v původním jazyce

We report on the Ly? scattering polarization signals we have calculated in a realistic model of an enhanced network region, resulting from a state-of-the-art radiation magnetohydrodynamic simulation. This model is characterized by spatially complex variations of the physical quantities at transition region heights. The results of our investigation lead us to emphasize that scattering processes in the upper solar chromosphere should indeed produce measurable linear polarization in Ly?. More importantly,we show that via the Hanle effect the model's magnetic field produces significant changes in the emergent Q/I and U/I profiles. Therefore, we argue that by measuring the polarization signals produced by scattering processes and the Hanle effect in Ly? and contrasting them with those computed in increasingly realistic atmospheric models, we should be able to decipher the magnetic, thermal, and dynamic structure of the upper chromosphere and transition region of the Sun.

Název v anglickém jazyce

The Hanle Effect of Ly? in a Magnetohydrodynamic Model of the Solar Transition Region

Popis výsledku anglicky

We report on the Ly? scattering polarization signals we have calculated in a realistic model of an enhanced network region, resulting from a state-of-the-art radiation magnetohydrodynamic simulation. This model is characterized by spatially complex variations of the physical quantities at transition region heights. The results of our investigation lead us to emphasize that scattering processes in the upper solar chromosphere should indeed produce measurable linear polarization in Ly?. More importantly,we show that via the Hanle effect the model's magnetic field produces significant changes in the emergent Q/I and U/I profiles. Therefore, we argue that by measuring the polarization signals produced by scattering processes and the Hanle effect in Ly? and contrasting them with those computed in increasingly realistic atmospheric models, we should be able to decipher the magnetic, thermal, and dynamic structure of the upper chromosphere and transition region of the Sun.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BN - Astronomie a nebeská mechanika, astrofyzika

OECD FORD obor

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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

2012

Kód důvěrnosti údajů

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

Název periodika

Astrophysical Journal Letters

ISSN

2041-8205

e-ISSN

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Svazek periodika

758

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

"L43/1"-"L43/5"

Kód UT WoS článku

000309679300019

EID výsledku v databázi Scopus

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