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        Direct imaging of long period radial velocity targets with NICI

        Author
        Salter, Graeme S.
        Tinney, Chris G.
        Wittenmyer, Robert A.
        Jenkins, James S.
        Jones, H.R.A.
        O'Toole, Simon J.
        Attention
        2299/14507
        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.
        Publication date
        2013-06-30
        Published in
        Proceedings of the International Astronomical Union
        Published version
        https://doi.org/10.1017/S1743921313007904
        Other links
        http://hdl.handle.net/2299/14507
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