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Proceedings Paper

Results from the Gemini NICI Planet-Finding Campaign
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Paper Abstract

From 2008 December to 2012 September, the NICI (Near-Infrared Coronagraphic Imager at the Gemini-South 8.1-m) Planet-Finding Campaign (Liu et al. 2010) obtained deep, high-contrast AO imaging of a carefully selected sample of over 200 young, nearby stars. In the course of the campaign, we discovered four co-moving brown dwarf companions: PZ Tel B (36±6 MJup, 16.4±1.0 AU), CD-35 2722B (31±8 MJup, 67±4 AU), HD 1160B (33+12 -9 MJup, 81± AU), and HIP 79797Bb (55+20-19MJup, 3 AU from the previously known brown dwarf companion HIP 79797Ba), as well as numerous stellar binaries. Three survey papers have been published to date, covering: 1) high mass stars (Nielsen et al. 2013), 2) debris disk stars (Wahhaj et al. 2013), and 3) stars which are members of nearby young moving groups (Biller et al. 2013). In addition, the Campaign has yielded new orbital constraints for the ~8-10 MJup planet Pic β (Nielsen et al. 2014) and a high precision measurement of the star-disk offset for the well-known disk around HR 4796A (Wahhaj et al. 2014). Here we discuss constraints placed on the distribution of wide giant exoplanets from the NICI Campaign, new substellar companion discoveries, and characterization both of exoplanets and circumstellar disks.

Paper Details

Date Published: 7 August 2014
PDF: 15 pages
Proc. SPIE 9148, Adaptive Optics Systems IV, 91481O (7 August 2014); doi: 10.1117/12.2057339
Show Author Affiliations
Beth A. Biller, The Univ. of Edinburgh (United Kingdom)
Michael C. Liu, Univ. of Hawai'i (United States)
Zahed Wahhaj, European Southern Observatory (Chile)
Eric L. Nielsen, Institute for Astronomy, Univ. of Hawai'i (United States)
Thomas L. Hayward, Gemini Observatory (Chile)
Mark R. Chun, Univ. of Hawai'i (United States)
Laird M. Close, Steward Observatory, The Univ. of Arizona (United States)
Christ Ftaclas, Institute for Astronomy, Univ. of Hawai'i (United States)
Jared R. Males, Steward Observatory, The Univ. of Arizona (United States)
Markus Hartung, Gemini Observatory (Chile)
I. Neill Reid, Space Telescope Science Institute (United States)
Evgenya Shkolnik, Lowell Observatory (United States)
Andrew J. Skemer, Steward Observatory, The Univ. of Arizona (United States)
Matthias Tecza, Univ. of Oxford (United Kingdom)
Niranjan A. Thatte, Univ. of Oxford (United Kingdom)
Fraser Clarke, Univ. of Oxford (United Kingdom)
Douglas Toomey, Mauna Kea Infrared LLC (United States)

Published in SPIE Proceedings Vol. 9148:
Adaptive Optics Systems IV
Enrico Marchetti; Laird M. Close; Jean-Pierre Véran, Editor(s)

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