NOAO >   Observing Info >   Approved Programs >   2019A-0233

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Program Information for 2019A-0233


PI: Knicole Colon, NASA Goddard Space Flight Center, knicole.colon@nasa.gov
Address: Exoplanets and Stellar Astrophysics Laboratory, Code 667, Greenbelt, MD 20771 USA

CoI: Joseph Rodriguez, Harvard-Smithsonian Center for Astrophysics
CoI: Andrew Vanderburg, U. of Texas, Austin
CoI: Geert Barentsen, NASA Ames Research Center

Title: Characterizing K2 and TESS Exoplanets with Near-Infrared Transit Photometry

Abstract: We propose to use WIYN+WHIRC to obtain high-precision, high-cadence, high-spatial-resolution near-infrared transit photometry of exoplanets and candidates discovered by NASA's K2 and TESS missions. These observations will support the confirmation and characterization of these planets, many of which are (or are expected to be) sub-Neptune-size and orbit bright, nearby, cool stars. With WIYN, we will refine the planet sizes thanks to minimization of stellar limb darkening in the near- infrared. We will also provide new measurements of the transit ephemerides, which is necessary due to the relatively short timescale of K2 and TESS observations for a majority of stars, and identify which stars are the host stars, which is necessary in crowded fields. For candidate planets, we will use the transit color (optical from K2 and TESS versus near-infrared from WIYN) to determine whether candidates have a planetary nature or are instead false positives due to a stellar blend. These observations will ultimately contribute to a catalog of well-characterized K2 and TESS planets that could be prime targets for atmospheric characterization with JWST.

Program Type: Standard/NASA WIYN

Scheduled Nights:
Run 1 (2019A):  WIYN/WHIRC -- 8n on Feb 15 - Feb 17 2019, Jun 21 - Jun 23 2019, Jul 25 - Jul 26 2019


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 >   2019A-0233

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