A Comparative Analysis of Photospheric Bright Points in an Active Region and in the Quiet Sun
作者： P. Romano , F. Berrilli , S. Criscuoli , D. Del Moro , I. Ermolli
DOI: 10.1007/S11207-012-9942-7
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摘要: We present a comparative study of photometric and dynamic properties photospheric bright points (BPs) observed at the disk centre in active region (AR) NOAA 10912 quiet Sun. found that average concentration BPs is 54% larger AR than also measure decrease BP an increase their size moving away from centre. However, these variations can be ascribed to variation spatial resolution image quality field view dataset. Sun are associated with downflow motions those measured within AR. Finally, our measurements contrast velocity along line sight, we deduced less high magnetic flux density regions regions, due lower efficiency convection former regions.
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