NOAO >   Observing Info >   Approved Programs >   2016A-0062

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Program Information for 2016A-0062


PI: Danielle Piskorz, California Institute of Technology--Division of Geological and Planetary Science, dpiskorz@gps.caltech.edu
Address: Division of Geological and Planetary Science, MS 170-25, Pasadena, CA, 91125 USA

CoI: Heather Knutson, California Institute of Technology--Division of Geological and Planetary Science
CoI: Henry Ngo, California Institute of Technology--Division of Geological and Planetary Science

Title: Imaging Friends of Hot Jupiters

Abstract: Approximately 1% of nearby Sun-like stars host short-period gas giant planets, known as hot Jupiters. Standard planet formation models suggest that these planets are unlikely to have formed in place, but instead likely migrated inward from a location beyond the ice line. However, the dynamical processes that drive this migration are currently poorly understood. In this program we seek to quantify the potential effects of stellar companions on the formation and migration of hot Jupiters by combining long-term radial velocity measurements, adaptive optics images, and high-resolution spectra of fifty hot Jupiter systems. In the spectroscopic portion of our survey we identify approximately ten candidate M dwarf companions to main-sequence FGK stars which display no detectable radial velocity signal over multi-year baselines, yet are not resolved in our dithered Keck AO imaging. We therefore seek to capitalize on the high contrast at short separations provided by the Gemini Differential Speckle Survey Instrument in order to resolve two of the candidate companions detected by the spectroscopic analysis method.

Program Type: Standard/Galactic

Scheduled Nights:
Run 1 (2016A):  GEM-S-SVC/DSSI -- 0.8hrs band 1 (GS-2016A-Q-11)


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-0062

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