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Infrared Spectroscopic Observations of the Secondary Stars of Short Period Sub-Gap Cataclysmic Variables
Ryan T. Hamilton, Thomas E. Harrison, Claus Tappert +1
We present K-band spectroscopy of short period, "sub-gap" cataclysmic variable (CV) systems obtained using ISAAC on the VLT. We show the infrared spectra (IR) for nine systems belo…
Modeling Multi-Wavelength Stellar Astrometry. II. Determining Absolute Inclinations, Gravity Darkening Coefficients, and Spot Parameters of Single Stars with SIM Lite
Jeffrey L. Coughlin, Thomas E. Harrison, Dawn M. Gelino
We present a novel technique to determine the absolute inclination of single stars using multi-wavelength sub-milliarcsecond astrometry. The technique exploits the effect of gravit…
Low-Mass Eclipsing Binaries in the Initial Kepler Data Release
J. L. Coughlin, M. Lopez-Morales, T. E. Harrison +2
We identify 231 objects in the newly released Cycle 0 dataset from the Kepler Mission as double-eclipse, detached eclipsing binary systems with Teff < 5500 K and orbital periods sh…
Modeling Multi-Wavelength Stellar Astrometry. I. SIM Lite Observations of Interacting Binaries
Jeffrey L. Coughlin, Dawn M. Gelino, Thomas E. Harrison +6
Interacting binaries consist of a secondary star which fills or is very close to filling its Roche lobe, resulting in accretion onto the primary star, which is often, but not alway…
Analyzing the Low State of EF Eridani with Hubble Space Telescope Ultraviolet Spectra
Paula Szkody, Anjum Mukadam, Boris T. Gaensicke +10
Time-resolved spectra throughout the orbit of EF Eri during its low accretion state were obtained with the Solar Blind Channel on the Advanced Camera for Surveys onboard the Hubble…
GALEX and Optical Light Curves of WX LMi, SDSSJ103100.5+202832.2 and SDSSJ121209.31+013627.7
Albert P. Linnell, Paula Szkody, Richard M. Plotkin +4
{\it GALEX} near ultraviolet (NUV) and far-ultraviolet (FUV) light curves of three extremely low accretion rate polars show distinct modulations in their UV light curves. While the…