Debris Disk Science with the Palomar ExAO System: First Results
Proceedings of The International Astronomical Union(2013)
摘要
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.
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