About: Importance of absorption and volume blocking for line intensity depression in EUV filaments

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Původ EUV filamentů, viditelných jako velké tmavé struktury na Slunci v EUV koronálních čarách o vlnových délkách mezi 504 a 912 Angstrom, může být vysvětlen dvěma mechanizmy:absorpcí v Lymanovém kontinuu vodíka a mechanismem %22volume blocking%22. V této práci porovnávame relativní příspěvek těchto dvou procesů k poklesům intenzit spektrálních čar v nejtmavší části EUV filamentů (tzv. H alfa filament) a v jejich EUV rozšířeních. Relativní příspěvek jsme určili použitím non-LTE modelu, kde je filament aproximován jednodimensionální vrstvou. Modelovali jsme profily Lymanových čar vodíku pozorované přístrojem SOHO/SUMER a profily čáry H alfa pozorované přístrojem THEMIS/MSDP (cs) The nature of the EUV filaments, seen as the large dark structures on the Sun in the EUV coronal lines with wavelengths between 504 and 912 Angstroms, can be explained by two processes: by absorption by the hydrogen Lyman continuum and by volume blocking. In this work we compare relative contributions of this two processes to line intensity depressions in the darkest part of the EUV filament (the H alpha filament) and in its EUV extension using non-LTE 1D-slab model and observations of the profiles of Lyman lines made by SOHO/SUMER and of the H alpha lines made by THEMIS/MSDP. The nature of the EUV filaments, seen as the large dark structures on the Sun in the EUV coronal lines with wavelengths between 504 and 912 Angstroms, can be explained by two processes: by absorption by the hydrogen Lyman continuum and by volume blocking. In this work we compare relative contributions of this two processes to line intensity depressions in the darkest part of the EUV filament (the H alpha filament) and in its EUV extension using non-LTE 1D-slab model and observations of the profiles of Lyman lines made by SOHO/SUMER and of the H alpha lines made by THEMIS/MSDP. (en)
Title	Importance of absorption and volume blocking for line intensity depression in EUV filaments Úloha absorpce a mechanismu %22volume blocking%22 při poklesu intensit spektrálních čar v EUV filamentech (cs) Importance of absorption and volume blocking for line intensity depression in EUV filaments (en)
skos:prefLabel	Importance of absorption and volume blocking for line intensity depression in EUV filaments Úloha absorpce a mechanismu %22volume blocking%22 při poklesu intensit spektrálních čar v EUV filamentech (cs) Importance of absorption and volume blocking for line intensity depression in EUV filaments (en)
skos:notation	RIV/67985815:_____/06:00050801!RIV07-AV0-67985815
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(1QS300120506), P(IAA3003203), Z(AV0Z10030501)
http://linked.open...vai/riv/dodaniDat	2007
http://linked.open...aciTvurceVysledku	Heinzel, Petr Schwartz, Pavol
http://linked.open.../riv/druhVysledku	A(V) - Audiovizuální tvorba se vzdáleným přístupem
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	479043
http://linked.open...ai/riv/idVysledku	RIV/67985815:_____/06:00050801
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	solar filaments; hydrogen Lyman lines; spectroscopy (en)
http://linked.open.../riv/klicoveSlovo	solar filaments spectroscopy hydrogen Lyman lines
http://linked.open...i/riv/kodPristupu	L
http://linked.open...ontrolniKodProRIV	[B97C193654D6]
http://linked.open...i/riv/mistoVydani	Noordwijk
http://linked.open...in/vavai/riv/obor	BN
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Development of methods for space weather forecasts and impacts of space weather on the ionosphere-atmosphere system Spectral diagnostics of solr flares and prominences
http://linked.open...UplatneniVysledku	2006
http://linked.open...iv/tvurceVysledku	Heinzel, Petr Schmieder, B. Schwartz, Pavol
http://linked.open...n/vavai/riv/zamer	Astronomie a astrofyzika

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