Results from the Gemini NICI planet-finding campaign

Beth A. Biller, Michael C. Liu, Zahed Wahhaj, Eric L. Nielsen, Thomas L. Hayward, Mark R. Chun, Laird M. Close, Christ Ftaclas, Jared R. Males, Markus Hartung, I. N. Reid, Evgenya Shkolnik, Andrew J. Skemer, Matthias Tecza, Niranjan A. Thatte, Fraser Clarke, Douglas Toomey

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish (US)
Title of host publicationAdaptive Optics Systems IV
EditorsJean-Pierre Veran, Enrico Marchetti, Laird M. Close
PublisherSPIE
ISBN (Electronic)9780819496164
DOIs
StatePublished - Jan 1 2014
Externally publishedYes
EventAdaptive Optics Systems IV - Montreal, Canada
Duration: Jun 22 2014Jun 27 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9148
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherAdaptive Optics Systems IV
CountryCanada
CityMontreal
Period6/22/146/27/14

    Fingerprint

Keywords

  • adaptive optics
  • circumstellar disks
  • coronagraphy
  • exoplanets

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Biller, B. A., Liu, M. C., Wahhaj, Z., Nielsen, E. L., Hayward, T. L., Chun, M. R., Close, L. M., Ftaclas, C., Males, J. R., Hartung, M., Reid, I. N., Shkolnik, E., Skemer, A. J., Tecza, M., Thatte, N. A., Clarke, F., & Toomey, D. (2014). Results from the Gemini NICI planet-finding campaign. In J-P. Veran, E. Marchetti, & L. M. Close (Eds.), Adaptive Optics Systems IV [91481O] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9148). SPIE. https://doi.org/10.1117/12.2057339