Direct imaging of long period radial velocity targets with NICI

Salter, Graeme S. and Tinney, Chris G. and Wittenmyer, Robert A. and Jenkins, James S. and Jones, Hugh R. A. and O'Toole, Simon J. (2013) Direct imaging of long period radial velocity targets with NICI. In: International Astronomical Union Symposium No. 299 (IAU 299): Exploring the Formation and Evolution of Planetary Systems, 2-7 June 2013, Victoria, Canada.

Abstract

We are finally entering an era where radial velocity and direct imaging parameter spaces are starting to overlap. Radial velocity measurements provide us with a minimum mass for an orbiting companion (the mass as a function of the inclination of the system). By following up these long period radial velocity detections with direct imaging we can determine whether a trend seen is due to an orbiting planet at low inclination or an orbiting brown dwarf at high inclination. In the event of a non-detection we are still able to put a limit on the maximum mass of the orbiting body. The Anglo-Australian Planet Search is one of the longest baseline radial velocity planet searches in existence, amongst its targets are many that show long period trends in the data. Here we present our direct imaging survey of these objects with our results to date. ADI Observations have been made using NICI (Near Infrared Coronagraphic Imager) on Gemini South and analysed using an in house, LOCI-like, post processing. Copyright © 2013, International Astronomical Union.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to Published version due to publisher copyright policy. However, the article can be freely accessed from the publisher's website at: https://www.cambridge.org/core/services/aop-cambridge-core/content/view/4C705B1E49DC3A96AC8E3360C3398B9C/S1743921313007904a.pdf/direct_imaging_of_long_period_radial_velocity_targets_with_nici.pdf
Faculty / Department / School: No Faculty
Date Deposited: 23 May 2017 04:40
Last Modified: 04 Jul 2017 23:58
Uncontrolled Keywords: brown dwarfs; high angular resolution; adaptive optics; low-mass; planetary systems; stars: imaging; image processing
Fields of Research : 02 Physical Sciences > 0201 Astronomical and Space Sciences > 020110 Stellar Astronomy and Planetary Systems
Identification Number or DOI: 10.1017/S1743921313007904
URI: http://eprints.usq.edu.au/id/eprint/31772

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