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Observations of the pulsation of the Cepheid l Car with the Sydney University Stellar Interferometer
J. Davis, A. P. Jacob, J. G. Robertson +4
Observations of the southern Cepheid l Car to yield the mean angular diameter and angular pulsation amplitude have been made with the Sydney University Stellar Interferometer (SUSI…
The radius and other fundamental parameters of the F9 V star beta Virginis
J. R. North, J. Davis, J. G. Robertson +10
We have used the Sydney University Stellar Interferometer (SUSI) to measure the angular diameter of the F9 V star beta Virginis. After correcting for limb darkening and combining w…
A Tale of Two Herbig Ae stars -MWC275 and AB Aurigae: Comprehensive Models for SED and Interferometry
A. Tannirkulam, J. D. Monnier, T. J. Harries +12
We present comprehensive models for the Herbig Ae stars MWC275 and AB Aur that aim to explain their spectral energy distribution (from UV to millimeter) and long baseline interfero…
Keck Laser Guide Star Adaptive Optics Monitoring of 2MASS J1534-2952AB: First Dynamical Mass Determination of a Binary T Dwarf
Michael C. Liu, Trent J. Dupuy, Michael J. Ireland
(Abridged) We present multi-epoch imaging of the T5.0+T5.5 binary 2MASS J1534-2952AB obtained with the Keck laser guide star adaptive optics system. Combined with an extensive (re-…
Discovery of a Circumbinary Disk around Herbig Ae/Be system v892 Tau
J. D. Monnier, A. Tannirkulam, P. G. Tuthill +4
We report the discovery of a circumbinary disk around the Herbig Ae/Be system v892 Tau. Our detailed mid-infrared images were made using segment-tilting interferometry on the Keck-…
Spectro-astrometric imaging of molecular gas within protoplanetary disk gaps
Klaus M. Pontoppidan, Geoffrey A. Blake, Ewine F. van Dishoeck +3
We present velocity-resolved spectro-astrometric imaging of the 4.7 m rovibrational lines of CO gas in protoplanetary disks using the CRIRES high resolution infrared spectromete…