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High Resolution Infrared Imaging & Spectroscopy of the Z Canis Majoris System During Quiescence & Outburst
Sasha Hinkley, Lynne Hillenbrand, Ben R. Oppenheimer +21
We present adaptive optics photometry and spectra in the JHKL-bands along with high spectral resolution K-band spectroscopy for each component of the Z Canis Majoris system. Our hi…
Sparse Aperture Masking Observations of the FL Cha Pre-transitional Disk
Lucas A. Cieza, Sylvestre Lacour, Matthias R. Schreiber +9
We present deep Sparse Aperture Masking (SAM) observations obtained with the ESO Very Large Telescope of the pre-transitional disk object FL Cha (SpT=K8, d=160 pc), the disk of whi…
The CHARA Array Angular Diameter of HR 8799 Favors Planetary Masses for Its Imaged Companions
Ellyn K. Baines, Russel J. White, Daniel Huber +13
HR 8799 is an hF0 mA5 gamma Doradus, lambda Bootis, Vega-type star best known for hosting four directly imaged candidate planetary companions. Using the CHARA Array interferometer,…
Fundamental Properties of Stars using Asteroseismology from Kepler & CoRoT and Interferometry from the CHARA Array
D. Huber, M. J. Ireland, T. R. Bedding +37
We present results of a long-baseline interferometry campaign using the PAVO beam combiner at the CHARA Array to measure the angular sizes of five main-sequence stars, one subgiant…
The radius and mass of the close solar twin 18 Sco derived from asteroseismology and interferometry
M. Bazot, M. J. Ireland, D. Huber +28
The growing interest in solar twins is motivated by the possibility of comparing them directly to the Sun. To carry on this kind of analysis, we need to know their physical charact…
Integrated photonic building blocks for next-generation astronomical instrumentation I: the multimode waveguide
Nemanja Jovanovic, Izabela Spaleniak, Simon Gross +5
We report on the fabrication and characterization of composite multimode waveguide structures that consist of a stack of single-mode waveguides fabricated by ultrafast laser inscri…