54 citations · 260 across the 17 of their papers we have counts for
3 papers · 1 filter
A Binary Orbit for the Massive, Evolved Star HDE 326823, a WR+O System Progenitor
Noel D. Richardson, Douglas R. Gies, Stephen J. Williams
The hot star HDE 326823 is a candidate transition-phase object that is evolving into a nitrogen-enriched Wolf-Rayet star. It is also a known low-amplitude, photometric variable wit…
Spectroscopy and Interferometry of Luminous Blue Variables
N. D. Richardson, D. R. Gies, N. D. Morrison +4
We report on the preliminary results of a three-year monitoring campaign of Galactic and Magellanic LBVs with both moderate and high resolution spectroscopy. We have collected more…
The H-alpha Variations of the Luminous Blue Variable P Cygni: Discrete Absorption Components and the Short S Doradus Phase
Noel D. Richardson, Nancy D. Morrison, Douglas R. Gies +3
P Cygni is a prototype of the Luminous Blue Variables (or S Doradus variables), and the star displays photometric and emission line variability on a timescale of years (known as th…