Circumstellar Disk Studies with the Gemini Planet Imager: Simulations and Sensitivities

Details Circumstellar Disk Studies with the Gemini Planet Imager: Simulations and Sensitivities Circumstellar Disk Studies with the Gemini Planet Imager: Simulations and Sensitivities

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21733904p&link_type=abstract

American Astronomical Society, AAS Meeting #217, #339.04; Bulletin of the American Astronomical Society, Vol. 43, 2011

Physics

Optics

Scientific paper

The Gemini Planet Imager (GPI), currently under construction for the 8-m Gemini South telescope, will study circumstellar disks using the polarization of scattered starlight. GPI will obtain these observations using a novel "integral field polarimetry" mode, in which the dispersing prism of its integral field spectrograph is replaced by a Wollaston prism, providing simultaneous dual polarimetry for each resolution element in the field of view, with minimal differential wavefront aberrations and thus maximum contrast for detecting faint circumstellar dust. We present end-to-end numerical modeling of adaptive optics and instrument performance demonstrating GPI's high sensitivity to optically thin circumstellar material. GPI is expected to be able to image scattered light from debris disks with significantly lower optical depths than are currently resolvable. Simulated observation sequences, processed through the current draft of GPI's data reduction pipeline, are allowing us to develop optimal observation strategies in preparation for GPI's first light planned for late 2011.

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