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Observations of Herbig Ae Disks with Nulling Interferometry
W. M. Liu, P. M. Hinz, M. R. Meyer +5
We present the results of 10 micron nulling interferometric observations of 13 Herbig Ae stars using the Magellan I (Baade) and the MMT 6.5 m telescopes. A portion of the observati…
Resolved Mid-Infrared Emission Around AB Aur and V892 Tau with Adaptive Optics Nulling Interferometric Observations
W. M. Liu, P. M. Hinz, W. F. Hoffmann +3
We present the results of adaptive optics nulling interferometric observations of two Herbig Ae stars, AB Aur and V892 Tau. Our observations at 10.3 microns show resolved circumste…
Adaptive Optics Nulling Interferometric Constraints on the Mid-Infrared Exozodiacal Dust Emission around Vega
W. M. Liu, P. M. Hinz, W. F. Hoffmann +7
We present the results of mid-infrared nulling interferometric observations of the main-sequence star alpha Lyr (Vega) using the 6.5 m MMT with its adaptive secondary mirror. From…
A Resolved Circumstellar Disk around the Herbig Ae Star HD 100546 in the Thermal Infrared
W. M. Liu, P. M. Hinz, M. R. Meyer +3
We present mid-infrared nulling interferometric and direct imaging observations of the Herbig Ae star HD 100546 obtained with the Magellan I (Baade) 6.5 m telescope. The observatio…
The Relative Age of the Thin and Thick Galactic Disks
Wilson M. Liu, Brian Chaboyer
We determine the relative ages of the open cluster NGC 188 and selected Hipparcos field stars by isochrone fitting, and compare them to the age of the thick disk globular cluster 4…