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Ruling out Stellar Companions and Resolving the Innermost Regions of Transitional Disks with the Keck Interferometer
Jorg-Uwe Pott, Marshall D. Perrin, Elise Furlan +3
With the Keck Interferometer, we have studied at 2 um the innermost regions of several nearby, young, dust depleted "transitional" disks. Our observations target five of the six cl…
The Case of AB Aurigae's Disk in Polarized Light: Is There Truly a Gap?
Marshall D. Perrin, Glenn Schneider, Gaspard Duchene +4
Using the NICMOS coronagraph, we have obtained high-contrast 2.0 micron imaging polarimetry and 1.1 micron imaging of the circumstellar disk around AB Aurigae on angular scales of…
Speckle Suppression Through Dual Imaging Polarimetry, and a Ground-Based Image of the HR 4796A Circumstellar Disk
Sasha Hinkley, Ben R. Oppenheimer, Remi Soummer +7
We demonstrate the versatility of a dual imaging polarimeter working in tandem with a Lyot coronagraph and Adaptive Optics to suppress the highly static speckle noise pattern--the…
Planetary system, star formation, and black hole science with non-redundant masking on space telescopes
Anand Sivaramakrishnan, Peter Tuthill, Michael Ireland +5
Non-redundant masking (NRM) is a high contrast, high resolution technique relevant to future space missions concerned with extrasolar planetary system and star formation, as well a…
Evidence for an Edge-On Disk around the Young Star MWC 778 from Infrared Imaging and Polarimetry
Marshall D. Perrin, William D. Vacca, James R. Graham
MWC 778 is an unusual and little-studied young stellar object located in the IC 2144 nebula. Recent spectroscopy by Herbig and Vacca (2008) suggested the presence of an edge-on cir…
Understanding Polarized Foreground from Dust: Towards Reliable Measurements of CMB Polarization
Alex Lazarian, Dan Clemens, Andy Adamson +16
Science opportunities and recommendations concerning optical/infrared polarimetry for the upcoming decade in the field of cosmology. Community-based White Paper to Astro2010 in res…