On the Occurrence Rate of Hot Jupiters in Different Stellar Environments
Article
Article Title | On the Occurrence Rate of Hot Jupiters in Different Stellar Environments |
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ERA Journal ID | 1057 |
Article Category | Article |
Authors | Wang, Ji (Author), Fischer, Debra A. (Author), Horch, Elliott P. (Author) and Huang, Xu (Author) |
Journal Title | The Astrophysical Journal: an international review of astronomy and astronomical physics |
Journal Citation | 799 (2), pp. 1-7 |
Article Number | 229 |
Number of Pages | 7 |
Year | 2015 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-637X |
1538-4357 | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/0004-637x/799/2/229 |
Web Address (URL) | https://iopscience.iop.org/article/10.1088/0004-637X/799/2/229 |
Abstract | Many hot Jupiters (HJs) are detected by the Doppler and transit techniques. From surveys using these two techniques, however, the measured HJ occurrence rates differ by a factor of two or more. Using the California Planet Survey sample and the Kepler sample, we investigate the causes for this difference in the HJ occurrence rate. First, we find that 12.8% ± 0.24% of HJs are misidentified in the Kepler mission because of photometric dilution and subgiant contamination. Second, we explore the differences between the Doppler sample and the Kepler sample that can account for the different HJ occurrence rate. Third, we discuss how to measure the fundamental HJ occurrence rates by synthesizing the results from the Doppler and Kepler surveys. The fundamental HJ occurrence rates are measures of the HJ occurrence rate as a function of stellar multiplicity and evolutionary stage, e.g., the HJ occurrence rate for single and multiple stars or for main-sequence and subgiant stars. While we find qualitative evidence that HJs occur less frequently in subgiants and multiple stellar systems, we conclude that our current knowledge of stellar properties and the stellar multiplicity rate is too limited for us to reach any quantitative result for the fundamental HJ occurrence rates. This concern extends to ηEarth, the occurrence rate of Earth-like planets. |
Keywords | Fundamental parameters stars; Methods; Photometric techniques; Radial velocities; Solar-type stars; Statistical planets and satellites; Statistics techniques; Astrophysics - Earth and Planetary Astrophysics |
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 | Yale University, United States |
Southern Connecticut State University, United States | |
Princeton University, United States | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q722y/on-the-occurrence-rate-of-hot-jupiters-in-different-stellar-environments
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