Circumstellar Disk Studies In The Near-ir With Mmt-ao And Clio2

Details Circumstellar Disk Studies In The Near-ir With Mmt-ao And Clio2 Circumstellar Disk Studies In The Near-ir With Mmt-ao And Clio2

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21743451f&link_type=abstract

American Astronomical Society, AAS Meeting #217, #434.51; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

We present a pilot study of near infrared scattered light imaging of circumstellar disks, which allows us to probe the presence of water ice. Its existence is revealed by a deficit at the 3.09μm spectral feature relative to the continuum. Using the MMT-AO system and Clio2 camera, we are able to image such disks from 0.1" outward without the use of a coronagraph. We are further able to estimate the average grain size in the outer disk through NIR colors. Having succeeded in a proof of concept study of the GM Aur transitional disk, we aim to expand our study to include an array of circumstellar disks around pre-main sequence stars of a variety of spectral types in order to probe grain properties and dust evolution.

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