Response of Granulation to Small Scale Bright Features in the Quiet Sun
Abstract
We detected 2.8 bright points (BPs) per Mm in the Quiet Sun (QS) with the New Solar Telescope (NST) at Big Bear Solar Observatory; using the TiO 705.68 nm spectral line, at an angular resolution ~ 0.1'' to obtain 30 min data sequence. Some BPs formed knots that were stable in time and influenced the properties of the granulation pattern around them. The observed granulation pattern within ~ 3'' of knots presents smaller granules than those observed in a normal granulation pattern; i.e., around the knots a suppressed convection is detected. Observed BPs covered ~ 5% of the solar surface and were not homogeneously distributed. BPs had an average size of 0.22'', they were detectable for 4.28 min in average, and had an averaged contrast of 0.1% in the deep red TiO spectral line.
Keywords
Cite
@article{arxiv.1102.3404,
title = {Response of Granulation to Small Scale Bright Features in the Quiet Sun},
author = {Aleksandra Andic and J. Chae and K. Ahn and P. R. Goode and W. Cao and V. Yurchyshyn and V. Abramenko},
journal= {arXiv preprint arXiv:1102.3404},
year = {2015}
}
Comments
18 pages 8 figures. The version here has slightly different position and size of figures than the original article accepted in ApJ