About: Study of an Extended EUV Filament Using SoHO/SUMER Observations of the Hydrogen Lyman Lines. II. Lyman α Line Observed During a Multi-wavelength Campaign

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About: Study of an Extended EUV Filament Using SoHO/SUMER Observations of the Hydrogen Lyman Lines. II. Lyman α Line Observed During a Multi-wavelength Campaign Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We found that the width of the filament depends on the wavelength in which the filament is observed (around 15 arcsec in Hα, 30 arcsec in Lα, and 60 arcsec in EUV). In Lα the filament is wider than in Hα because cool plasma, not visible in Hα, is optically thick at the Lα line center, and its presence blocks the coronal emission. We have derived physical plasma properties of this filament fitting the Lyman spectra and Hα profiles by using a 1D isobaric NLTE model. We have estimated the geometrical filling factor in the filament channel. Its low value indicates the presence of multi-threads. We found that the width of the filament depends on the wavelength in which the filament is observed (around 15 arcsec in Hα, 30 arcsec in Lα, and 60 arcsec in EUV). In Lα the filament is wider than in Hα because cool plasma, not visible in Hα, is optically thick at the Lα line center, and its presence blocks the coronal emission. We have derived physical plasma properties of this filament fitting the Lyman spectra and Hα profiles by using a 1D isobaric NLTE model. We have estimated the geometrical filling factor in the filament channel. Its low value indicates the presence of multi-threads. (en)
Title	Study of an Extended EUV Filament Using SoHO/SUMER Observations of the Hydrogen Lyman Lines. II. Lyman α Line Observed During a Multi-wavelength Campaign Study of an Extended EUV Filament Using SoHO/SUMER Observations of the Hydrogen Lyman Lines. II. Lyman α Line Observed During a Multi-wavelength Campaign (en)
skos:prefLabel	Study of an Extended EUV Filament Using SoHO/SUMER Observations of the Hydrogen Lyman Lines. II. Lyman α Line Observed During a Multi-wavelength Campaign Study of an Extended EUV Filament Using SoHO/SUMER Observations of the Hydrogen Lyman Lines. II. Lyman α Line Observed During a Multi-wavelength Campaign (en)
skos:notation	RIV/67985815:_____/12:00386865!RIV13-GA0-67985815
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GAP209/10/1680), P(GAP209/10/1706), Z(AV0Z10030501)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Heinzel, Petr Kotrč, Pavel Schwartz, Pavol
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	172122
http://linked.open...ai/riv/idVysledku	RIV/67985815:_____/12:00386865
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	prominences; models; quiescent (en)
http://linked.open.../riv/klicoveSlovo	prominences models quiescent
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[052BDBBE4D48]
http://linked.open...i/riv/nazevZdroje	Solar Physics
http://linked.open...in/vavai/riv/obor	BN
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Multi-spectral study of solar filaments and their EUV channels Energetic Processes In Solar Atmosphere: Relations of Simulations to Observations
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	281
http://linked.open...iv/tvurceVysledku	Heinzel, Petr Schmieder, B. Kotrč, Pavel Schwartz, Pavol
http://linked.open...ain/vavai/riv/wos	000310974000011
http://linked.open...n/vavai/riv/zamer	Astronomie a astrofyzika
issn	0038-0938
number of pages	22 (xsd:int)
http://bibframe.org/vocab/doi	10.1007/s11207-012-0100-z

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