NOAO > Observing Info > Approved Programs > 2011B-0310
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NOAO > Observing Info > Approved Programs > 2011B-0310 |
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PI: Christian Marois, Herzberg Institute of Astrophysics, christian.marois@nrc-cnrc.gc.ca
Address: National Research Council of Canada, 5071 West Saanich Road, RR. 5, Victoria, British Columbia, V9E 2E7, Canada
CoI: Bruce Macintosh, Lawrence Livermore National Laboratory
CoI: Raphael Galicher, Herzberg Institute of Astrophysics
CoI: Travis Barman, Lowell Observatory
CoI: Quinn Konopacky, Lawrence Livermore National Laboratory
CoI: Ben Zuckerman, UC Los Angeles
Title: Altair/NIRI L-band Imaging of a Fifth Planet Around HR 8799
Abstract:
Four planets have been directly imaged around HR 8799. A new analysis of our
recent 2009-2010 Keck Lp-band observations shows a new candidate planet "f"
(7 MJup for 30 Myr). We propose to confirm this candidate planet by observing
HR 8799 with Altair/NIRI at Lp-band. The Gemini unique queue scheduling is
required to perform this research given that several HR 8799 transits with
decent seeing are required to confirm this candidate. If confirmed, the
existence of planet f will (1) lower planet mass upper limits obtained from a
system dynamical stability analysis, (2) better constraint the
mass-luminosity evolutionary model predictions and (3) complicate the system
formation scenario by adding an additional planet in the core accretion
formation region located close (< 35 AU) to the star.
National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360
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NOAO > Observing Info > Approved Programs > 2011B-0310 |
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