Observations in the infrared have played a significant role in the development of our understanding of WR140. Two sets of observations are described here: the changing profile of the 1.083-{\mu}m He I line observed for the 2009 campaign to study evolution of the wind-collision region near periastron passage, and multiwavelength photometry and imaging of the dust made by WR140 in previous periastron passages.
Cite
@article{arxiv.1101.1046,
title = {WR 140 in the Infrared},
author = {Peredur Williams},
journal= {arXiv preprint arXiv:1101.1046},
year = {2011}
}
Comments
11 pages, 16 figures, Published in proceedings of "Stellar Winds in Interaction", editors T. Eversberg and J.H. Knapen. Full proceedings volume is available on http://www.stsci.de/pdf/arrabida.pdf