Forbidden emission lines are particularly valuable disc tracers, because their profiles reflect the kinematics within their formation region. Here we present a short excerpt from the results of a spectroscopic survey of evolved massive stars surrounded by high-density discs.
Cite
@article{arxiv.1509.00772,
title = {Forbidden calcium lines as disc tracers},
author = {Anna Aret and Michaela Kraus},
journal= {arXiv preprint arXiv:1509.00772},
year = {2015}
}
Comments
2 pages; 1 figure; submitted to the proceedings of the Physics of Evolved Stars - A conference dedicated to the memory of Olivier Chesneau, Nice, France, June 8-12, 2015