NOAO >   Observing Info >   Approved Programs >   2017A-0206

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Program Information for 2017A-0206


PI: Paul A Dalba, Boston U., pdalba@bu.edu
Address: Astronomy Department, 725 Commonwealth Ave, Rm 514, Boston, MA 02215 USA

CoI: Philip Muirhead, Boston U.
CoI: David M Kipping, Columbia U.

Title: Recovering the Transit of KIC 9413313b: A Potential Exomoon Host Lost to Transit Timing Variations

Abstract: We propose to observe the upcoming transit of KIC 9413313b, a potential Jupiter-sized exoplanet with a 440-day orbital period that may host an exomoon. This planet is an excellent candidate for targeted exomoon investigations and also for atmospheric characterization via transmission spectroscopy with the textit{Hubble Space Telescope} or textit{James Webb Space Telescope}. However, the three transits observed by {it Kepler} displayed $sim$30-hour transit timing variations (TTVs), possibly due to another undiscovered planetary companion in the KIC 9413313 system. This TTV is the primary reason why KIC 9413313b has not yet been classified as an exoplanet. TTVs of this magnitude make it difficult to know precisely when future transits will occur. We cannot conduct atmospheric or exomoon characterization with textit{HST} or textit{JWST} until we observe another transit and constrain the transit ephemeris. Recovering the lost 10-hour transit of KIC 9413313b will require a baseline of 3 full nights with WIYN-WHIRC in July 2017. These observations will lay the first stone in the foundation for studies of cold, giant transiting exoplanets, which is an entirely unexplored regime of exoplanetary science.

Program Type: Standard/NASA WIYN

Scheduled Nights:
Run 1 (2017A):  WIYN/WHIRC -- 3n on Jul 24 - Jul 26 2017


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NOAO >   Observing Info >   Approved Programs >   2017A-0206

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