NOAO >   Observing Info >   Approved Programs >   2016A-0112

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Program Information for 2016A-0112


PI: Brendan P Bowler, California Institute of Technology, bpbowler@caltech.edu
Address: Division of Geological and Planetary Sciences, 1200 E California Blvd MC 150-21, Pasadena, CA, 91125 USA

CoI: Adam Kraus, U. of Texas, Austin
CoI: Sasha Hinkley, University of Exeter
CoI: Lynne Hillenbrand, California Institute of Technology
CoI: Gregory Herczeg, Peking University
CoI: Michael C Liu, U. of Hawaii
CoI: Marta Bryan, California Institute of Technology
CoI: Heather Knutson, California Institute of Technology

Title: Spectroscopic Confirmation of the Planetary Companion ROXs12 b

Abstract: We propose to obtain the first near-infrared spectra of the young (~7 Myr) 12-20 Mjup planetary-mass companion ROXs 12 b with Gemini/NIFS. Spectroscopy will enable us to confirm its low temperature and low mass, which is especially important at young ages when an edge-on disk around a brown dwarf can mimic the expected photospheric properties of a planet. In addition, moderate-resolution spectroscopy opens the possibility of identifying emission lines associated with accretion from a circum-planetary disk, which is suggested by excess infrared emission. If confirmed, a circum-planetary disk around ROXs 12 b will provide important clues about its formation, suggesting an in situ mechanism (disk instability or cloud fragmentation) as opposted to planet-planet scattering, which may be destructive to circum-planetary disks.

Program Type: Standard/Galactic

Scheduled Nights:
Run 1 (2016A):  GEM-NQ/NIFS -- 7hrs band 1 (GN-2016A-Q-37)


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2016A-0112

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