I have proposed that long Halpha fibrils are caused by heating events of which the tracks are afterwards outlined by contrails of cooling gas with extraordinary Halpha opacity and yet larger opacity at the ALMA wavelengths. Here I detail the radiative transfer background.
@article{arxiv.1611.05308,
title = {Solar ALMA predictions: tutorial},
author = {Robert J. Rutten},
journal= {arXiv preprint arXiv:1611.05308},
year = {2017}
}
Comments
For proceedings IAU Symposium 327 "Fine structure and dynamics of the solar atmosphere", Editors Santiago Vargas Dominguez, Alexander Kosovichev, Louise Harra, Patrick Antolin. New version: corrected figure 1 and improved text