NOAO >   Observing Info >   Approved Programs >   2013B-0248

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Proposal Information for 2013B-0248


PI: Veselin Kostov, Johns Hopkins University, vkostov@pha.jhu.edu
Address: Physics Department, 366 Bloomberg Center, 3400 N. Charles Street, Baltimore, MD 21218, USA

CoI: Peter McCullough, Space Telescope Science Institute
CoI: Margaret Meixner, Space Telescope Science Institute
CoI: Christoph Baranec, Caltech Optical Observatories

Title: Photometric follow-up of a newly discovered circumbinary planet.

Abstract: At the time of writing, seven confirmed circumbinary planets (CBP) have been reported orbiting both members of a gravitationally bound stellar system; the number of planetary candidates orbiting single stars is significantly larger - nearly three thousand and counting. Yet almost half of all Solar-type stars are members of multiple systems suggesting that searching for planets only around single stars may potentially miss a significant fraction of the planet census. The project presented here is part of the PI's PhD thesis, aimed at adding important new members to the still small family of CBP and to characterize them with WIYN data to supplement the exquisite photometric data provided by the NASA Kepler mission. We have identified a new CBP (Kostov et al., in prep') exhibiting extra transits. To better characterize the astrophysical parameters of this CBP, both the properties of the stars and hence also the properties of the planet, we propose here to obtain near-infrared photometric measurements of our target in J, H and Ks filters. The near-diffraction limited image quality offered by WHIRC will provide information on the flux contamination to our target due to known nearby source (1.5\arcsec away). This will allow us to better estimate the parameters of the CBP.


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