9–13 Mar 2015
Albanova, Stockholm
Europe/Stockholm timezone

Properties of sunspot formation as seen from high-resolution observations

10 Mar 2015, 09:40
20m
Oskar Klein Auditorium (Albanova, Stockholm)

Oskar Klein Auditorium

Albanova, Stockholm

Speaker

Nazaret Bello Gonzalez (Kiepenheuer-Institut fuer Sonnenphysik)

Description

The evolution of NOAA11024 from a protospot into a fully-developed sunspot was followed in detail from high-resolution observations. The affluence of continuously emerging magnetic flux assembling the developing spot, the action of twist and shear motions, the presence of a broad magnetic canopy beyond the spot intensity boundaries, the role of light bridges as natural path to gather the new inflowing flux and the presence of abnormal (counter-)Evershed plasma flows seem to be all some of the necessary ingredients to ignite the formation of penumbrae within time scales of 2 hours (and of about 5 hours to shape a fully-fledge sunspot). These and other observational properties will be put together in order to draw a comprehensive picture of the formation of NOAA11024 in particular and of sunspot formation in general.

Primary author

Nazaret Bello Gonzalez (Kiepenheuer-Institut fuer Sonnenphysik)

Presentation materials