Izlaganje sa skupa

New insights into the temporal evolution of MBPs

Dominik Utz orcid.org/0000-0002-0061-5916 ; IGAM/Institute of Physics, University of Graz, Graz, Austria
J. C. del Toro Iniesta ; Instituto de Astrofísica de Andalucía (CSIC), Granada, Espana
L. R. Bellot Rubio ; Instituto de Astrofísica de Andalucía (CSIC), Granada, Espana
Jan Jurčak ; Astronomical Institute CAS, Ondřejov, Czech Republic
S. Thonhofer ; IGAM/Institute of Physics, University of Graz, Graz, Austria
M. Bodnarova ; Astronomical Institute CAS, Ondřejov, Czech Republic
Arnold Hanslmeier ; IGAM/Institute of Physics, University of Graz, Graz, Austria
Birgit Lemmerer ; IGAM/Institute of Physics, University of Graz, Graz, Austria
Isabell Piantschitsch ; IGAM/Institute of Physics, University of Graz, Graz, Austria
S. Guttenbrunner ; IGAM/Institute of Physics, University of Graz, Graz, Austria

Sažetak

Magnetic bright points (MBPs) are among the most fascinating and interesting manifestations of small-scale solar magnetic fields.
In the present work the temporal evolution of MBPs is followed in data sets taken by the Hinode satellite. The analysed data and obtained results confirm a recently presented study done with Sunrise/IMaX data, namely that MBPs are features undergoing fast evolution with magnetic fields starting around the equipartition field strength, then showing strong downflows (between 2 to 4 km/s) causing the magnetic field to amplify into the kG range (700 to 1500 G) before dissolving again. Furthermore the initial field inclinations depend on the initial magnetic field strengths and show an evolution with more vertical angles at some point during the evolution.

Ključne riječi

small-scale solar magnetic fields; spectropolarimetry; Hinode

Hrčak ID:

143692

URI

https://hrcak.srce.hr/143692

Datum izdavanja:

20.11.2014.

Posjeta: 679 *