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| Paper: |
The Solar Convection over a Solar Cycle |
| Volume: |
463, 2nd ATST-EAST Workshop in Solar Physics: Magnetic Fields from the Photosphere to the Corona |
| Page: |
115 |
| Authors: |
Hanslmeier, A.; Muller, R.; Utz, D. |
| Abstract: |
We study the variation of granular size and contrast over a solar
activity cycle. Two different homogeneous data samples were used, from
Pic du Midi and from Hinode. The results do not confirm previous
values cited in the literature. From the Hinode data the granulation
seems to be constant, the trend found may be of instrumental
degradation. We try to explain the result by other observations like
the total solar irradiance variation. This variation was small over
the past five years and may explain why in the case of Hinode data no
significant variations were found. |
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