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

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)425-428
Number of pages4
JournalAIP Conference Proceedings
StatePublished - 2009
Event15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun - St. Andrews, United Kingdom
Duration: Jul 21 2008Jul 25 2008


  • (Stars:) planetary systems
  • Brown dwarfs
  • Low-mass
  • Stars

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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