Observing strategies for the NICI campaign to directly image extrasolar planets

Beth Biller; Étienne Artigau; Zahed Wahhaj; Markus Hartung; Michael C. Liu; Laird M. Close; Mark R. Chun; Christ Ftaclas; Douglas W. Toomey; Thomas Hayward

doi:10.1117/12.789565

17 July 2008 Observing strategies for the NICI campaign to directly image extrasolar planets

Beth Biller, Étienne Artigau, Zahed Wahhaj, Markus Hartung, Michael C. Liu, Laird M. Close, Mark R. Chun, Christ Ftaclas, Douglas W. Toomey, Thomas Hayward

Author Affiliations +

Proceedings Volume 7015, Adaptive Optics Systems; 70156Q (2008) https://doi.org/10.1117/12.789565
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

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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Beth Biller, Étienne Artigau, Zahed Wahhaj, Markus Hartung, Michael C. Liu, Laird M. Close, Mark R. Chun, Christ Ftaclas, Douglas W. Toomey, and Thomas Hayward "Observing strategies for the NICI campaign to directly image extrasolar planets", Proc. SPIE 7015, Adaptive Optics Systems, 70156Q (17 July 2008); https://doi.org/10.1117/12.789565

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