NOAO >   Observing Info >   Approved Programs >   2016B-0230

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Program Information for 2016B-0230


PI: Thomas Beatty, Pennsylvania State U., tbeatty@psu.edu
Address: Department of Astronomy, 525 Davey Lab, University Park, PA 16802 USA

CoI: Kimberly Cartier, Pennsylvania State U.

Title: Precise H-K Color Measurements of the Daysides of Two Hot Jupiters

Abstract: We propose to observe secondary eclipses of the hot Jupiters HAT-P- 8b and KELT-7b using a technique we refer to as ``chromometry.'' We have had success with chromometry in the optical observing exoplanet transits, and we are planning our first test of this method using WIYN in May, 2016, on an eclipse of WASP-103b. The observations proposed here would be a refined, operational, use of chromometry, with the specific intent to determine if the dayside H-Ks colors of HAT-P-8b and KELT-7b are blackbody-like, or brown dwarf-like. These would be two of the most precise ground-based color measurements, and would be a demonstration of chromometry's ability to measure the eclipse color of planets around extremely bright host stars. This second point is particularly exciting in the context of TESS, since secondary eclipses of the bright hot Jupiters that TESS is expected to discover are difficult, if not impossible, to measure from the ground using traditional methods. Chromometry would therefore allow us to substantially increase TESS's science yield.

Program Type: Standard/NASA WIYN

Scheduled Nights:
Run 2 (2016B):  WIYN/WHIRC -- 2n on Nov 12 2016, Nov 22 2016


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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