NOAO >   Observing Info >   Approved Programs >   2013A-0229

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Proposal Information for 2013A-0229


PI: Natalie Hinkel, NASA Exoplanet Science Institute, natalie.hinkel@gmail.com
Address: 770 South Wilson Avenue, Pasadena, CA 91125, USA

CoI: Stephen Kane, NASA Exoplanet Science Institute
CoI: Kaspar von Braun, Max Planck Institute for Astronomy

Title: Detecting Transit Signatures for Southern Sky Exoplanets Orbiting Bright Hosts

Abstract: Photometric follow-up of planets discovered by the radial velocity technique have yielded known transiting extra-solar planets, especially for those with the brightest host stars (e.g., HD 209458b). By using the radial velocity curves of known planets, an optimized photometric follow-up strategy can be constructed to predict transit times. The only limitation to photometric precision is determined by the chosen telescope/instrument and small uncertainties in the timing of the transit. Unfortunately, many of the photometric observations of the southern hemisphere host stars do not have the precision to confirm or exclude the transits of planets. We propose to use the CTIO 0.9m to conduct a photometric survey of transit signatures for 15 exoplanet host stars as part of the Transit Ephemeris Refinement and Monitoring Survey (TERMS). We aim to produce transit ephemerides via optimal observing windows for each of the known radial velocity planets observable from CTIO with a sufficiently high transit probability and signal-to-noise ratio. In combination with literature and TERMS radial velocity data, we are then able to fully characterize the planetary system and determine if a transit occurs. In the case of a null detection, our photometry is used to place constraints on orbital and astrophysical parameters of the planet.


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NOAO >   Observing Info >   Approved Programs >   2013A-0229

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