Number of the records: 1
Temporal Changes of the Photospheric Velocity Fields
- 1.
SYSNO ASEP 0027713 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Temporal Changes of the Photospheric Velocity Fields Title Časové změny fotosférických rychlostních polí Author(s) Klvaňa, Miroslav (ASU-R) RID
Švanda, Michal (ASU-R) RID, ORCID
Bumba, Václav (ASU-R)Source Title Hvar Observatory Bulletin - ISSN 0351-2657
Roč. 29, č. 1 (2005), s. 89-98Number of pages 10 s. Action Hvar astrophysical colloquium /7./: Solar activity cycle and global phenomena Event date 20.09.2004-24.09.2004 VEvent location Hvar Country HR - Croatia Event type EUR Language eng - English Country HR - Croatia Keywords Solar photosphere ; velocity fields ; tidal waves Subject RIV BN - Astronomy, Celestial Mechanics, Astrophysics R&D Projects GA205/04/2129 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10030501 - ASU-R (2005-2011) Annotation We analyse influence of the planets Mercury, Venus, Earth and Jupiter on the Doppler velocity field in the solar photosphere, using the theory of the tidal forces. We compare the measured Doppler velocity fields estimated in a zonal area along the solar equator with the results of the dynamical calculations. From this comparison it follows that we do not succeed to demonstrate presence of a velocity field, caused by the tidal forces, in the measured data. If the tidal waves in the solar photosphere do exist, they are lost in the noise and their horizontal velocity field probably will be under the limit of 20 m/sec. Workplace Astronomical Institute Contact Anežka Melichárková, bibl@asu.cas.cz, Tel.: 323 620 326 Year of Publishing 2006
Number of the records: 1