Evolution of Umbral Dots and Penumbral Grains

0355591 - ASÚ 2011 RIV DE eng C - Conference Paper (international conference)
Sobotka, Michal - Jurčák, Jan
Evolution of Umbral Dots and Penumbral Grains.
Magnetic Coupling between the Interior and Atmosphere of the Sun. Berlin: Springer, 2010 - (Hasan, S.), s. 507-508. Astrophysics and Space Science Proceedings. ISBN 978-3-642-02858-8. ISSN 1570-6591.
[Magnetic Coupling between the Interior and Atmosphere of the Sun. Bangalore (IN), 02.12.2008-05.12.2008]
R&D Projects: GA AV ČR IAA300030808
Institutional research plan: CEZ:AV0Z10030501
Keywords : Sun photosphere * sunspots * spectroscopic
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics

On 27 February 2007, Hinode SOT/SP acquired a time series of full-Stokes spectra of a regular, medium-sized sunspot NOAA 10944 located near the center of the solar disk. The inversion code SIR (Ruiz Cobo and del Toro Iniesta 1992, ApJ 398, 375) was applied to these data and a 3-h long time series of 34 spatial 3D maps of plasma parameters in the umbra and penumbra were computed. The temporal and spatial resolutions are 5.5 min and 0 :0032, respectively. A simultaneous series of SOT/BFI G-band images was utilized for complementary measurements of horizontal motions and sizes of small-scale features.
Permanent Link: http://hdl.handle.net/11104/0194326