Observing Strategies for the NICI Campaign to Directly Image Extrasolar Planets

Details Observing Strategies for the NICI Campaign to Directly Image Extrasolar Planets Observing Strategies for the NICI Campaign to Directly Image Extrasolar Planets

2008-09-17

arxiv.org/abs/0809.3020v1

Astronomy and Astrophysics

Astrophysics

12 pages, 10 figures, submitted to Proceedings of the SPIE

Scientific paper

10.1117/12.789565

We discuss observing strategy for the Near Infrared Coronagraphic Imager (NICI) on the 8-m Gemini South telescope. NICI combines a number of techniques to attenuate starlight and suppress superspeckles: 1) coronagraphic imaging, 2) dual channel imaging for Spectral Differential Imaging (SDI) and 3) operation in a fixed Cassegrain rotator mode for Angular Differential Imaging (ADI). NICI will be used both in service mode and for a dedicated 50 night planet search campaign. While all of these techniques have been used individually in large planet-finding surveys, this is the first time ADI and SDI will be used with a coronagraph in a large survey. Thus, novel observing strategies are necessary to conduct a viable planet search campaign.

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