65 citations · 208 across the 6 of their papers we have counts for
5 papers
A Search for Hierarchical Triples using Kepler Eclipse Timing
D. R. Gies, S. J. Williams, R. A. Matson +4
We present the first results of a Kepler survey of 41 eclipsing binaries that we undertook to search for third star companions. Such tertiaries will periodically alter the eclipse…
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…
Spectral Energy Distributions of Be and Other Massive Stars
Y. Touhami, N. D. Richardson, D. R. Gies +7
We present spectrophotometric data from 0.4 to 4.2 microns for bright, northern sky, Be stars and several other types of massive stars. Our goal is to use these data with ongoing,…
The Long Period, Massive Binaries HD 37366 and HD 54662: Potential Targets for Long Baseline Optical Interferometry
T. S. Boyajian, D. R. Gies, J. P. Dunn +8
We present the results from an optical spectroscopic analysis of the massive stars HD 37366 and HD 54662. We find that HD 37366 is a double-lined spectroscopic binary with a period…
Joint H-alpha and X-Ray Observations of Massive X-Ray Binaries. III. The Be X-ray Binaries HDE 245770 = A 0535+26 and X Persei
E. D. Grundstrom, T. S. Boyajian, C. Finch +9
We present results from an H-alpha monitoring campaign of the Be X-ray binary systems HDE 245770 = A 0535+26 and X Per. We use the H-alpha equivalent widths together with adopted v…