Host Star Properties and Transit Exclusion for the HD 38529 Planetary System
arXiv:1303.4735 · doi:10.1088/0004-637X/768/2/155
Abstract
The transit signature of exoplanets provides an avenue through which characterization of exoplanetary properties may be undertaken, such as studies of mean density, structure, and atmospheric composition. The Transit Ephemeris Refinement and Monitoring Survey (TERMS) is a program to expand the catalog of transiting planets around bright host stars by refining the orbits of known planets discovered with the radial velocity technique. Here we present results for the HD 38529 system. We determine fundamental properties of the host star through direct interferometric measurements of the radius and through spectroscopic analysis. We provide new radial velocity measurements that are used to improve the Keplerian solution for the two known planets, and we find no evidence for a previously postulated third planet. We also present 12 years of precision robotic photometry of HD 38529 that demonstrate the inner planet does not transit and the host star exhibits cyclic variations in seasonal mean brightness with a timescale of approximately six years.
10 pages, 6 figures, 4 tables, accepted for publication in ApJ
References in corpus (10)
- Stellar Diameters and Temperatures II. Main Sequence K & M Stars
- Patterns of photometric and chromospheric variation among Sun-like stars: A 20-year perspective
- Efficient fitting of multiplanet Keplerian models to radial velocity and astrometry data
- SOAP. A tool for the fast computation of photometry and radial velocity induced by stellar spots
- CHARA Array Measurements of the Angular Diameters of Exoplanet Host Stars
- A Search for Multi-Planet Systems Using the Hobby-Eberly Telescope
- Constraining Orbital Parameters Through Planetary Transit Monitoring
- Carbon and Oxygen in Nearby Stars: Keys to Protoplanetary Disk Chemistry
- The Discovery of HD 37605c and a Dispositive Null Detection of Transits of HD 37605b
- The HD 192263 system: planetary orbital period and stellar variability disentangled
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- Retired A Stars and Their Companions VIII: 15 New Planetary Signals Around Subgiants and Transit Parameters for California Planet Search Planets with Subgiant Hosts
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- Predicted Yield of Transits of Known Radial Velocity Exoplanets from the TESS Primary and Extended Missions
- Robust asteroseismic properties of the bright planet host HD 38529
- A Comprehensive Characterization of the 70 Virginis Planetary System
- Mutual inclinations between giant planets and their debris discs in HD 113337 and HD 38529
- The 14 Her Planetary System: Companion Masses and Architecture from Radial Velocities and Astrometry
- Variability of Known Exoplanet Host Stars Observed by TESS
- Orbital Refinement and Stellar Properties for the HD 9446, HD 43691, and HD 179079 Planetary Systems
- The California Legacy Survey I. A Catalog of 178 Planets from Precision Radial Velocity Monitoring of 719 Nearby Stars over Three Decades