NOAO >   Observing Info >   Approved Programs >   2012A-0057

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Proposal Information for 2012A-0057


PI: Josh Eisner, University of Arizona, jeisner@email.arizona.edu
Address: Astronomy Department, 933 N. Cherry Ave, Tucson, AZ 85721, USA

CoI: Chris Bilinski, University of Arizona

Title: Imaging Sub-AU-Sized Regions of Protoplanetary Disks in the near-IR

Abstract: The structure of protoplanetary disks within 1 AU of their central stars has important implications for terrestrial planet formation, giant planet migration, and disk accretion. Near-IR interferometry presents the unique opportunity to spatially resolve inner disk regions, and recent observations have constrained the distributions of both gas and dust at sub-AU radii. Recent enhancements to CHARA enable observations of a number of protoplanetary disks around T Tauri and Herbig Ae/Be stars, and the recovery of both amplitudes and closure phases. From these measurements, simple images can be reconstructed. Here we propose detailed observations of a handful of protoplanetary disks to produce simple images. With these images, we will probe global asymmetries in inner disk regions and look for bright ``spots'', gaps, or other structures that may indicate planet formation.


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2012A-0057

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