Estimation of width and inclination of a filament sheet using He II 304 Å observations by STEREO/EUVI

Estimation of width and inclination of a filament sheet using He II 304 Å observations by STEREO/EUVI

The STEREO mission has been providing stereoscopic view of the filament eruptions in EUV wavelengths. The most extended view during filament eruptions is seen in He II 304 Å observations, as the filament spine appears darker and sharper. The projected filament width appears differently when v...

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Main Authors: S. Gosain, B. Schmieder
Format: Article
Language:English
Published: Copernicus Publications 2010-01-01
Series:Annales Geophysicae
Online Access:https://www.ann-geophys.net/28/149/2010/angeo-28-149-2010.pdf
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spelling doaj-2ff7cfd3e80b4ed08b9a26284b88e4642020-11-24T21:43:04ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-05762010-01-012814915310.5194/angeo-28-149-2010Estimation of width and inclination of a filament sheet using He II 304 Å observations by STEREO/EUVIS. Gosain0B. Schmieder1Udaipur Solar Observatory, P.O. Box 198, Dewali, Udaipur 313001, IndiaObservatoire de Paris, LESIA, 92190 Meudon, FranceThe STEREO mission has been providing stereoscopic view of the filament eruptions in EUV wavelengths. The most extended view during filament eruptions is seen in He II 304 Å observations, as the filament spine appears darker and sharper. The projected filament width appears differently when viewed from different angles by STEREO satellites. Here, we present a method for estimating the width and inclination of the filament sheet using He II 304 Å observations by STEREO-A and B satellites from the two viewpoints. The width of the filament sheet, when measured from its feet to its apex, gives estimate of filament height above the chromosphere.https://www.ann-geophys.net/28/149/2010/angeo-28-149-2010.pdf
collection DOAJ
language English
format Article
sources DOAJ
author S. Gosain
B. Schmieder
spellingShingle S. Gosain
B. Schmieder
Estimation of width and inclination of a filament sheet using He II 304 Å observations by STEREO/EUVI
Annales Geophysicae
author_facet S. Gosain
B. Schmieder
author_sort S. Gosain
title Estimation of width and inclination of a filament sheet using He II 304 Å observations by STEREO/EUVI
title_short Estimation of width and inclination of a filament sheet using He II 304 Å observations by STEREO/EUVI
title_full Estimation of width and inclination of a filament sheet using He II 304 Å observations by STEREO/EUVI
title_fullStr Estimation of width and inclination of a filament sheet using He II 304 Å observations by STEREO/EUVI
title_full_unstemmed Estimation of width and inclination of a filament sheet using He II 304 Å observations by STEREO/EUVI
title_sort estimation of width and inclination of a filament sheet using he ii 304 å observations by stereo/euvi
publisher Copernicus Publications
series Annales Geophysicae
issn 0992-7689
1432-0576
publishDate 2010-01-01
description The STEREO mission has been providing stereoscopic view of the filament eruptions in EUV wavelengths. The most extended view during filament eruptions is seen in He II 304 Å observations, as the filament spine appears darker and sharper. The projected filament width appears differently when viewed from different angles by STEREO satellites. Here, we present a method for estimating the width and inclination of the filament sheet using He II 304 Å observations by STEREO-A and B satellites from the two viewpoints. The width of the filament sheet, when measured from its feet to its apex, gives estimate of filament height above the chromosphere.
url https://www.ann-geophys.net/28/149/2010/angeo-28-149-2010.pdf
work_keys_str_mv AT sgosain estimationofwidthandinclinationofafilamentsheetusingheii304aobservationsbystereoeuvi
AT bschmieder estimationofwidthandinclinationofafilamentsheetusingheii304aobservationsbystereoeuvi
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