NOAO >   Observing Info >   Approved Programs >   2019A-0315

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Program Information for 2019A-0315


PI: Matthew Penny, Ohio State U., penny@astronomy.ohio-state.edu
Address: Department of Astronomy, 4055 McPherson Laboratory, 140 W 18th Ave, Columbus, OH 43210 USA

CoI: Thomas Beatty, U. of Arizona
CoI: Edwin Bergin, U. of Michigan
CoI: L Ilsedore Cleeves, U. of Virginia
CoI: Karen A Collins, Harvard-Smithsonian Center for Astrophysics
CoI: Savannah Jacklin, Vanderbilt U.
CoI: Marshall Johnson, Ohio State U.
CoI: Jennifer A Johnson, Ohio State U.
CoI: Michael B Lund, Vanderbilt U.
CoI: Melissa Ness, Columbia U.
CoI: Ryan Oelkers, Vanderbilt U.
CoI: Joseph Rodriguez, Harvard-Smithsonian Center for Astrophysics
CoI: Sarah Schmidt, Leibniz-Institut fuer Astrophysik
CoI: Robert Siverd, Vanderbilt U.

Title: Multi-band Imaging Survey for High-Alpha PlanetS (MISHAPS): Surveying the demographics of transiting hot Jupiters in the alpha-rich Galactic bulge

Abstract: The formation and migration mechanisms of hot Jupiters remain topics of intense debate. An unexplored avenue that could break the impasse is to investigate the effect of chemical abundances, particularly alpha elements, on hot Jupiter formation. However, Galactic chemical evolution imposes a severe degeneracy between [$alpha$/Fe] and metallicity [Fe/H] within the nearby thin disk population that is usually searched for planets. We propose a survey to measure the occurrence rate of hot Jupiters in the metal-rich, alpha-enhanced Galactic bulge using DECam. The survey will perform its own false- positive rejection by utilizing DECam's unique combination of etendue and rapid filter changes. These abilities enable statistical validation of our expected sample of 0$ planets by eliminating the majority of M-dwarf eclipsing binary, blended eclipsing binary, and hierarchical triple false positives through measurement of chromatic eclipse depths, primary-secondary eclipse depth differences, and host star density profiling. Our survey will introduce a new independent variable, and provide a new observational constraint, into the study of the demographics of hot Jupiters.

Program Type: Survey

Scheduled Nights:
Run 1 (2019A):  CT-4m/DECam -- 3n on Jun 29 - Jul 01 2019


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NOAO >   Observing Info >   Approved Programs >   2019A-0315

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