On the Transit Potential of the Planet Orbiting Iota Draconis
Abstract
Most of the known transiting exoplanets are in short-period orbits, largely due to the bias inherent in detecting planets through the transit technique. However, the eccentricity distribution of the known radial velocity planets results in many of those planets having a non-negligible transit probability. One such case is the massive planet orbiting the giant star iota Draconis, a situation where both the orientation of the planet's eccentric orbit and the size of the host star inflate the transit probability to a much higher value than for a typical hot Jupiter. Here we present a revised fit of the radial velocity data with new measurements and a photometric analysis of the stellar variability. We provide a revised transit probability, an improved transit ephemeris, and discuss the prospects for observing a transit of this planet from both ground and space.
Additional Information
© 2010 The American Astronomical Society. Received 2010 May 17; accepted 2010 July 16; published 2010 August 25. The authors thank David Ciardi and Andrew Howard for several useful suggestions. We thank the many CAT observers who have observed ι Dra over the years, especially David Mitchell and Saskia Hekker. Contributions of Andreas Quirrenbach to the K giants radial velocity monitoring program at the Lick Observatory are gratefully acknowledged. This research has made use of the NASA/IPAC/NExScI Star and Exoplanet Database, which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.Attached Files
Published - Kane2010p11437Astrophys_J.pdf
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Additional details
- Eprint ID
- 20216
- Resolver ID
- CaltechAUTHORS:20100929-110549084
- NASA
- Created
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2010-09-29Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field
- Caltech groups
- Infrared Processing and Analysis Center (IPAC)