About: The Hanle Effect of Lyα in a Magnetohydrodynamic Model of the Solar Transition Region

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We report on the Lyα 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 Lyα. 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 Lyα 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. We report on the Lyα 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 Lyα. 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 Lyα 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. (en)
Title	The Hanle Effect of Lyα in a Magnetohydrodynamic Model of the Solar Transition Region The Hanle Effect of Lyα in a Magnetohydrodynamic Model of the Solar Transition Region (en)
skos:prefLabel	The Hanle Effect of Lyα in a Magnetohydrodynamic Model of the Solar Transition Region The Hanle Effect of Lyα in a Magnetohydrodynamic Model of the Solar Transition Region (en)
skos:notation	RIV/67985815:_____/12:00388118!RIV13-GA0-67985815
http://linked.open...avai/predkladatel	Astronomický ústav AV ČR, v.v.i.
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GPP209/12/P741)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Štěpán, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Astronomický ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	138617
http://linked.open...ai/riv/idVysledku	RIV/67985815:_____/12:00388118
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	polarization; radiative transfer; scattering (en)
http://linked.open.../riv/klicoveSlovo	radiative transfer polarization scattering
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[C0D30CF241D9]
http://linked.open...i/riv/nazevZdroje	Astrophysical Journal Letters
http://linked.open...in/vavai/riv/obor	BN
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Spectropolarimetric modeling and diagnostics of magnetic fields in the upper atmosphere of the quiet Sun
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	758
http://linked.open...iv/tvurceVysledku	Štěpán, Jiří Trujillo Bueno, J. Carlsson, M. Leenaarts, J.
http://linked.open...ain/vavai/riv/wos	000309679300019
issn	2041-8205
number of pages	5 (xsd:int)
http://bibframe.org/vocab/doi	10.1088/2041-8205/758/2/L43
is http://linked.open...avai/riv/vysledek of	The Hanle Effect of Lyα in a Magnetohydrodynamic Model of the Solar Transition Region

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