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| Paper: |
Coherent Lateral Motion of Penumbral Filaments during the X-class Flare of 13 December 2006 |
| Volume: |
454, The 3rd Hinode Science Meeting |
| Page: |
273 |
| Authors: |
Gosain, S.; Venkatakrishnan, P.; Tiwari, S. K. |
| Abstract: |
The high-resolution pictures of the solar photosphere from
space based 50 cm Solar Optical Telescope (SOT) onboard Hinode spacecraft, are now routinely observed. Such images of
a δ-sunspot in NOAA 10930
were obtained by Hinode during 13 December 2006 while a X-class flare occurred in this active
region. Two bright ribbons were visible even in white light and
G-band images apart from chromospheric Ca II H images. We
register the sunspot globally using cross-correlation technique
and analyse local effects during flare interval. We find that
during flare the penumbral filaments show lateral motion. Also,
we locate two patches, one in either polarity, which show
converging motion towards the polarity inversion line (PIL). In
Ca II H images we find kernel with pre-flare brightening which
lie along the PIL. |
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