135 citations · 211 across the 9 of their papers we have counts for
9 papers
Chandra/HETG and NuSTAR Observations of V750 Ara, a Cas-type Star
David P. Huenemoerder, Sean J. Gunderson, Richard Ignace +6
We present 197 ks HETG and 95 ks NuSTAR spectra of the Cas-type object V750 Ara. The high-resolution X-ray spectra show that the target is similar to other objects of this cla…
A Time-Dependent Spectral Analysis of Cassiopeiae
Sean J. Gunderson, David P. Huenemoerder, José M. Torrejón +7
We investigated the temporal and spectral features of Cassiopeiae's X-ray emission within the context of the white dwarf accretion hypothesis. We find that the variabilities pr…
The Nature of X-Rays from Young Stellar Objects in the Orion Nebula Cluster -- A Chandra HETGS Legacy Project
Norbert S. Schulz, David P. Huenemoerder, David A. Principe +10
The Orion Nebula Cluster (ONC) is the closest site of very young ( 1 Myrs) massive star formation. The ONC hosts more than 1600 young and X-ray bright stars with masses rangi…
Chandra HETG X-ray Spectra and Variability of Aqr, a Cas-type Be star
David P. Huenemoerder, Pragati Pradhan, Claude R. Canizares +7
High-resolution X-ray spectra of Aqr, a Cas-type star, obtained with the Chandra/HETG grating spectrometer, revealed emission lines of H-like ions of Mg, Si, S, and Fe, a…
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…