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Paper: Spectro-polarimetric Observations of Moving Magnetic Features around a Pore
Volume: 463, 2nd ATST-EAST Workshop in Solar Physics: Magnetic Fields from the Photosphere to the Corona
Page: 51
Authors: Zuccarello, F.; Berrilli, F.; Criscuoli, S.; Del Moro, D.; Ermolli, I.; Giannattasio, F.; Giorgi, F.; Romano, P.; Viticchiè, B.
Abstract: Moving Magnetic Features (MMFs) are small-size magnetic elements that are seen to stream-out from sunspots. Although several observations suggest that MMFs are closely related to the existence and presence of penumbral filaments, there are some very few observations that report MMFs streaming from pores and sunspots after the penumbra has disappeared. Here we report on the first high spectral, spatial and temporal resolution observations of type II and III MMFs streaming out from a small pore and compare our results with previous observations of features streaming out from penumbrae. We analyzed spectro-polarimetric observations of NOAA 11005 acquired with the IBIS instrument at the Dunn Solar Telescope in the Fe I 617.3 nm and the Ca II 854.2 nm spectral lines, and in the G-band. We show that the characteristics of the investigated MMFs agree with those reported in the literature for MMFs which stream out from spots with penumbrae. We believe that our results provide new information that might be helpful in the future development and upgrade of numerical modeling of the generation of MMFs in the lack of a penumbra.
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