a1 Dept. of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794
a2 Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Blvd., Pasadena, CA 91109, USA
a3 Caltech Optical Observatories, California Institute of Technology, 1200 E. California Blvd., MC 11-17, Pasadena, CA 91125, USA; [email protected]
a4 Now at Giant Magellan Telescope Observatory Corp., Pasadena, CA 91106, USA
a5 Now at Department of Astronomy, Cornell University, Ithaca, NY 14853, USA
a6 European Southern Observatory (ESO), Alonso de Cordova 3107 Vitacura, 763 0355, Santiago, Chile
We present first imaging results from the PALM-3000 adaptive optics system and PHARO camera on the Hale 5 m telescope. Observations using a vector vortex coronagraph have given us direct detections of the two-ring dusty debris system around the star HD 141569. Our observations reveal the inner clearing in the disk to unprecedentedly small angular separations, and are the most sensitive yet at the H and K bands. We are for the first time able to measure and compare the colors of the scattered light in the inner and outer dust rings, and find that the outer ring is significantly bluer than the inner ring.