| Issue |
EAS Publications Series
Volume 55, 2012
4th French-Chinese Meeting on Solar Physics - Understanding Solar Activity: Advances and Challenges
|
|
|---|---|---|
| Page(s) | 87 - 90 | |
| Section | Magnetic Field and Polarization Measurements and Theory | |
| DOI | https://doi.org/10.1051/eas/1255012 | |
| Published online | 27 June 2012 | |
M. Faurobert, C. Fang and T. Corbard (eds)
EAS Publications Series, 55 (2012) 87-90
Physical properties of Moving Magnetic Features observed around a pore
1
INAF - Osservatorio Astronomico di Roma, Via Frascati
33, 00040
Monte Porzio Catone,
Italy
2
Dipartimento di Fisica, Università degli Studi di Roma “Tor
Vergata”, via della Ricerca
Scientifica 1, 00133
Roma,
Italy
3
ESA/ESTEC RSSD, Keplerlaan 1, 2200 AG
Noordwijk, The
Netherlands
4
Dipartimento di Fisica e Astronomia - Sezione Astrofisica,
Università di Catania, via S. Sofia
78, 95123
Catania,
Italy
Movies of magnetograms of sunspots often show small-size magnetic patches that move radially away and seem to be expelled from the field of the spot. These patches are named Moving Magnetic Features (MMFs). They have been mostly observed around spots and have been interpreted as manifestations of penumbral filaments. Nevertheless, few observations of MMFS streaming out from spots without penumbra have been reported. He we investigate the physical properties of MMFs observed around the field of a pore derived by the analyses of high spectral, spatial and temporal resolution data acquired at the Dunn Solar Telescope with IBIS. We find that the main properties of the investigated features agree with those reported for MMFs observed around regular spots. These results indicate that an improvement of current numerical simulations is required to understand the generation of MMFs in the lack of penumbrae.
© EAS, EDP Sciences 2012