Astronomy and Astrophysics – Astronomy
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011spd....42.0303s&link_type=abstract
American Astronomical Society, SPD meeting #42, #3.03; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
We present a spectropolarimetric study of the sea-serpent penumbral filaments in AR NOAA 10944 and of a naked sunspot (i.e. a sunspot-like feature without penumbra) in AR NOAA 10977. Both active regions were observed by Hinode-SOT/SP in the photospheric lines Fe I 6301 & 6302 [[Unable to Display Character: Ǻ]]. The high spatial and temporal resolution combined with the high polarimetric sensitivity of these observations enables us to get a better understanding of the dynamics of the penumbra and the moving magnetic feature (herafter MMF) activity in and around both traditional and naked sunspots. Our results show how the temporal evolution of the sea-serpent filaments fits very well with the thin-tube flux model for the penumbra presented by Schlichenmaier (2003). In addition, the spectropolarmetric analysis of the naked sunspot addresses the issue posed by Zuccarello et al. (2009) about the existence of bipolar MMFs around naked sunspots even when they cannot be explained as an extension of the penumbral filaments.
Bellot Rubio Luis Ramon
Sainz Dalda Alberto
Tarbell Theodor
Title Alan
Vargas Dominguez S.
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