| Presenter: | D. Shaun Bloomfield |
| Affiliation: | Max Planck Institute for Solar System Research |
| Title: | The nature of running penumbral waves revealed |
| Authors: | D.S. Bloomfield, A. Lagg, S.K. Solanki, R. Centeno, M. Collados, J. Trujillo Bueno |
| Form: | poster |
| Abstract: | Spectropolarimetric time series data of the primary spot of active region NOAA 9448 were obtained in the photospheric Si\,{\sc{i}}\,10827~\AA\ line and the chromospheric He\,{\sc{i}}\,10830~\AA\ multiplet with the Tenerife Infrared Polarimeter. Throughout the time series the spectrograph slit was fixed over a region covering umbra, penumbra, and quiet sun. We present an analysis of running penumbral waves in the chromosphere, their Fourier phase difference relations to both photospheric and chromospheric umbral oscillations, and their dependence on the magnetic field topology. |
| Session: | 3. Nature of solar magnetic fields as revealed by polarimetry |
| Presentation date: | Tuesday 18th September |
| Presentation time: | 12:30:00 |