Performance of a Dual Imaging Adaptive Optics Polarimeter

Details Performance of a Dual Imaging Adaptive Optics Polarimeter Performance of a Dual Imaging Adaptive Optics Polarimeter

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...19910209p&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #102.09; Bulletin of the American Astronomical Society, Vol. 33, p.1465

Physics

Optics

Scientific paper

The high dynamic range performance of a Wollaston prism dual adaptive optics imaging polarimeter experiment is presented. This polarimeter is incorporated into the 36 element curvature AO system, Hokupa'a, currently mounted on the Gemini North 8 meter telescope. The instrument sensitivity is translated into the range of circumstellar disks detectable by the system through a numerical Mie scattering algolrithm. I will discuss the advantages of dual imaging polarimetry with AO for imaging circumstellar disks compared to thermal imaging and other techniques. To illustrate the effectiveness of this technique, I present a new circumstellar disk imaged around the star LkHα 262, a young star that is associated with the MBM-12 molecular cloud.

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