Host star properties and transit exclusion for the HD 38529 planetary system
Article
Article Title | Host star properties and transit exclusion for the HD 38529 planetary system |
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ERA Journal ID | 1057 |
Article Category | Article |
Authors | Henry, Gregory W. (Author), Kane, Stephen R. (Author), Wang, Sharon X. (Author), Wright, Jason T. (Author), Boyajian, Tabetha S. (Author), von Braun, Kaspar (Author), Ciardi, David R. (Author), Dragomir, Diana (Author), Farrington, Chris (Author), Fischer, Debra A. (Author), Hinkel, Natalie R. (Author), Howard, Andrew W. (Author), Jensen, Eric (Author), Laughlin, Gregory (Author), Mahadevan, Suvrath (Author) and Pilyavsky, Genady (Author) |
Journal Title | The Astrophysical Journal: an international review of astronomy and astronomical physics |
Journal Citation | 768 (2), pp. 155-163 |
Article Number | 155 |
Number of Pages | 9 |
Year | 2013 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-637X |
1538-4357 | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/0004-637X/768/2/155 |
Web Address (URL) | http://iopscience.iop.org/article/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 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. |
Keywords | planetary systems; stars: individual (HD 38529); techniques: photometric; techniques: radial velocities; |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Public Notes | For access to this article, please click on the URL link provided. |
Byline Affiliations | Tennessee State University, United States |
California Institute of Technology (Caltech), United States | |
Pennsylvania State University, United States | |
Yale University, United States | |
National Aeronautics and Space Administration (NASA), United States | |
Las Cumbres Observatory, United States | |
Mount Wilson Observatory, United States | |
Massey University, New Zealand | |
University of Hawaii, United States | |
Swarthmore College, United States | |
University of California, United States | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q4314/host-star-properties-and-transit-exclusion-for-the-hd-38529-planetary-system
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