Program: GN-2016B-Q-49

Title:	Wind Collision in WR 140 at maximum
PI:	Anthony F. J. Moffat
Co-I(s):	Peredur William, Julian Pittard, André-Nicolas Chené, Sean Dougherty, Andy Pollock, Yasuharu Sugawara, Watson Varricatt, Noel Richardson, Kenji Hamaguchi, Maeda Yoshitomo, Michael F. Corcoran

Abstract

We propose observing the profile of the He I 1.083-micron line in the colliding-wind Wolf-Rayet binary WR 140 at critical phases around periastron in order to measure the absorption to the wind-collision region and the emission sub-peak formed in the compressed wind flow. In conjunction with other observations, these data will help locate the X-ray source relative to the stars, map the colliding wind flow and study the energy budget of the wind-collision process.

Publications using this program's data

[data] [ADS] Conditions in the WR 140 wind-collision region revealed by the 1.083-μ m He I line profile
[data] [ADS] Conditions in the WR 140 wind-collision region revealed by the 1.083-μ m He I line profile