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Proceedings Paper

New results from the first exoplanet survey in the Canadian High Arctic
Author(s): Nicholas M. Law; Raymond Carlberg; Octavi Fors; Eric Steinbring; Wayne Ngan; Philip Wulfken; Bjorn Pedersen; Jérôme Maire; Suresh Sivanandam
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Paper Abstract

We present new results from the first search for transiting exoplanets undertaken from the High Arctic: the AWCam (Arctic Wide-field Cameras) survey. The survey, which has been operating for 2.5 years, is based at 80 degrees North on Ellesmere Island in the Canadian High Arctic. The small telescopes monitor 70,000 bright stars in a several-hundred square-degree region around Polaris, with milli-magnitude photometric precision, and are capable of discovering giant planets around 10,000 bright, nearby solar-type stars. We present the first longterm monitoring results from the AWCams, including an assessment of the site characteristics and the systems' long-term performance. The High-Arctic site provided excellent survey efficiency, without diurnal windowing and largely uninterrupted by clouds. Useful data was obtained over the entire survey field 71% of the time; the sky was clear 62% of the time. One pristine clear, dark period in winter 2012/13 persisted for 480 hours. In 2012/13 we recorded a period of 480 hours of continuous photometric conditions, attaining 3-4 millimag photometric stability over the entire period. We report the long-term photometric performance of the AWCam systems and detail the discovery of a bright (V=8) low-amplitude eclipsing binary. Finally, we present a concept for an extremely-wide-field arctic survey based on the Evryscope telescope-array design.

Paper Details

Date Published: 22 July 2014
PDF: 9 pages
Proc. SPIE 9145, Ground-based and Airborne Telescopes V, 91450H (22 July 2014); doi: 10.1117/12.2057009
Show Author Affiliations
Nicholas M. Law, The Univ. of North Carolina at Chapel Hill (United States)
Raymond Carlberg, Univ. of Toronto (Canada)
Octavi Fors, The Univ. of North Carolina at Chapel Hill (United States)
Eric Steinbring, NRC - Herzburg Institute of Astrophysics (Canada)
Wayne Ngan, Univ. of Toronto (Canada)
Philip Wulfken, Univ. of North Carolina at Chapel Hill (United States)
Bjorn Pedersen, Univ. of North Carolina at Chapel Hill (United States)
Jérôme Maire, Univ. of Toronto (Canada)
Suresh Sivanandam, Univ. of Toronto (Canada)

Published in SPIE Proceedings Vol. 9145:
Ground-based and Airborne Telescopes V
Larry M. Stepp; Roberto Gilmozzi; Helen J. Hall, Editor(s)

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