Bright points in the inter-network quiet Sun
天体物理学
2009-11-10 v1
摘要
High resolution G-band images of the interior of a supergranulation cell show ubiquitous Bright Points (some 0.3 BPs per Mm^2). They are located in intergranular lanes and often form chains of elongated blobs whose smallest dimension is at the resolution limit (135 km on the Sun). Most of them live for a few minutes, having peak intensities from 0.8 to 1.8 times the mean photospheric intensity. These BPs are probably tracing intense magnetic concentrations, whose existence has been inferred in spectro-polarimetric measurements. Our finding provides a new convenient tool for the study of the inter-network magnetism, so far restricted to the interpretation weak polarimetric signals.
引用
@article{arxiv.astro-ph/0405515,
title = {Bright points in the inter-network quiet Sun},
author = {J. Sanchez Almeida and I. Marquez and J. A. Bonet and I. Dominguez Cerdena and R. Muller},
journal= {arXiv preprint arXiv:astro-ph/0405515},
year = {2009}
}
备注
To appear in ApJL. 4 pages, 4 figures