NOAO >   Observing Info >   Approved Programs >   2019A-0364

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Program Information for 2019A-0364


PI: Kevin K Hardegree-Ullman, IPAC, khullman@ipac.caltech.edu
Address: MC 100-22, 1200 E California Blvd, Pasadena, CA 91125 United States

CoI: Kyle A Pearson, U. of Arizona
CoI: Jake Turner, Cornell U.
CoI: Jessie Christiansen, IPAC
CoI: David Ciardi, IPAC

Title: Atmospheric Survey of Giant Exoplanets Discovered by TESS

Abstract: Optical spectra of exoplanet transits provide information about the deep ionosphere of exoplanetary atmospheres, and about the oxygen content and cloud structure of the atmosphere. These ionospheres can be investigated with ground-based transit observations of broad absorption signatures from alkali metals such as the sodium (Na I) and potassium (K I) doublets. We seek to investigate the information content in the optical spectra of 30 transiting ultra hot-Jupiters primarily discovered by NASA's Transiting Exoplanet Survey Satellite (textit). In particular, we propose to analyze oxygen, which when coupled with measurements of the carbon composition is indicative of the formation properties of the exoplanet. TiO/VO are used to constrain the oxygen abundance. The rest of the features are due to both Rayleigh scattering and hazes. By measuring the O and Na abundance we can begin to determine whether the elemental composition of the planets and their host stars are funda! mentally different and indicative of the processes underlying the planets' formation and evolution.

Program Type: Survey

Scheduled Nights:
Run 1 (2019A):  SOAR/Goodman -- 5n on Feb 12 2019, Feb 24 2019, Jun 13 2019, Jul 09 2019, Jul 11 2019
Run 1 (2019B):  SOAR/Goodman -- 5n on Sep 07 2019, Nov 04 2019, Nov 13 2019, Jan 11 2020, Jan 18 2020


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-0364

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