271 citations · 4.4k across the 144 of their papers we have counts for
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Probing Wolf-Rayet Winds: Chandra/HETG X-Ray Spectra of WR 6
David P. Huenemoerder, Kenneth G. Gayley, Wolf-Rainer Hamann +6
With a deep Chandra/HETGS exposure of WR 6, we have resolved emission lines whose profiles show that the X-rays originate from a uniformly expanding spherical wind of high X-ray-co…
A Coordinated X-ray and Optical Campaign on the Nearest Massive Eclipsing Binary, Delta Ori Aa: I. Overview of the X-ray Spectrum
M. F. Corcoran, J. S. Nichols, H. Pablo +22
We present an overview of four phase-constrained Chandra HETGS X-ray observations of Delta Ori A. Delta Ori A is actually a triple system which includes the nearest massive eclipsi…
A Coordinated X-ray and Optical Campaign of the Nearby Massive Binary Orionis Aa: II. X-ray Variability
J. S. Nichols, D. P. Huenemoerder, M. F. Corcoran +18
We present time-resolved and phase-resolved variability studies of an extensive X-ray high-resolution spectral dataset of the Orionis Aa binary system. The four observations, o…
Wolf-Rayet stars in the Small Magellanic Cloud: I. Analysis of the single WN stars
R. Hainich, D. Pasemann, H. Todt +3
Wolf-Rayet (WR) stars have a severe impact on their environments owing to their strong ionizing radiation fields and powerful stellar winds. Since these winds are considered to be…
A Coordinated X-ray and Optical Campaign of the Nearest Massive Eclipsing Binary, delta Orionis Aa: III. Analysis of Optical Photometric MOST and Spectroscopic (Ground Based) Variations
Herbert Pablo, Noel D. Richardson, Anthony F. J. Moffat +44
We report on both high-precision photometry from the MOST space telescope and ground-based spectroscopy of the triple system delta Ori A consisting of a binary O9.5II+early-B (Aa1…
A coordinated X-ray and Optical Campaign of the Nearest Massive Eclipsing Binary, Orionis Aa: IV. A multiwavelength, non-LTE spectroscopic analysis
T. Shenar, L. Oskinova, W. -R. Hamann +13
Eclipsing systems of massive stars allow one to explore the properties of their components in great detail. We perform a multi-wavelength, non-LTE analysis of the three components…
On the consistent treatment of the quasi-hydrostatic layers in hot star atmospheres
Andreas Sander, Tomer Shenar, Rainer Hainich +3
CONTEXT: Spectroscopic analysis remains the most common method to derive masses of massive stars, the most fundamental stellar parameter. While binary orbits and stellar pulsations…