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Measurements of chromospheric velocity fields by means of the Coimbra University spectroheliograph

SYSNO ASEP	0355587
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Ostatní články
Title	Measurements of chromospheric velocity fields by means of the Coimbra University spectroheliograph
Author(s)	Garcia, A. (PT) Klvaňa, Miroslav (ASU-R)_RID Sobotka, Michal (ASU-R)_{RID, ORCID}
Source Title	Central European Astrophysical Bulletin - ISSN 1845-8319 Roč. 34, č. 1 (2010), s. 47-56
Number of pages	10 s.
Language	eng - English
Country	HR - Croatia
Keywords	Sun ; chromosphere ; instrumentation
Subject RIV	BN - Astronomy, Celestial Mechanics, Astrophysics
R&D Projects	IAA300030808 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z10030501 - ASU-R (2005-2011)
Annotation	The Coimbra University spectroheliograph produces high-quality full-disc spectroheliograms in the lines Hα, Ca II K3, Ca II K1, and adjacent continua. The reduction software was extended to enable the measurement of velocity fields in Hα. We describe the instrument, the data processing, present the first results of the velocity measurements, and discuss the possibilities of improvement of their quality.
Workplace	Astronomical Institute
Contact	Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326
Year of Publishing	2011

Number of the records: 1