Stellar diameters and temperatures - V. 11. Newly characterized exoplanet host stars
Article
Article Title | Stellar diameters and temperatures - V. 11. Newly characterized exoplanet host stars |
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ERA Journal ID | 1074 |
Article Category | Article |
Authors | von Braun, Kaspar (Author), Boyajian, Tabetha S. (Author), van Belle, Gerard T. (Author), Kane, Stephen R. (Author), Jones, Jeremy (Author), Farrington, Chris (Author), Schaefer, Gail (Author), Vargas, Norm (Author), Scott, Nic (Author), ten Brummelaar, Theo A. (Author), Kephart, Miranda (Author), Gies, Douglas R. (Author), Ciardi, David R. (Author), Lopez-Morales, Mercedes (Author), Mazingue, Cassidy (Author), McAlister, Harold A. (Author), Ridgway, Stephen (Author), Goldfinger, P. J. (Author), Turner, Nils H. (Author) and Sturmann, Laszlo (Author) |
Journal Title | Monthly Notices of the Royal Astronomical Society |
Journal Citation | 438 (3), pp. 2413-2425 |
Number of Pages | 13 |
Year | 2014 |
Publisher | Oxford University Press |
Place of Publication | United Kingdom |
ISSN | 0035-8711 |
1365-2966 | |
Digital Object Identifier (DOI) | https://doi.org/10.1093/mnras/stt2360 |
Web Address (URL) | https://academic.oup.com/mnras/article/438/3/2413/972333 |
Abstract | We use near-infrared interferometric data coupled with trigonometric parallax values and spectral energy distribution fitting to directly determine stellar radii, effective temperatures and luminosities for the exoplanet host stars 61 Vir, Ρ CrB, GJ 176, GJ 614, GJ 649, GJ 876, HD 1461, HD 7924, HD 33564, HD 107383 and HD 210702. Three of these targets are M dwarfs. Statistical uncertainties in the stellar radii and effective temperatures range from 0.5 to 5 per cent and from 0.2 to 2 per cent, respectively. For eight of these targets, this work presents the first directly determined values of radius and temperature; for the other three, we provide updates to their properties. The stellar fundamental parameters are used to estimate stellar mass and calculate the location and extent of each system's circumstellar habitable zone. Two of these systems have planets that spend at least parts of their respective orbits in the system habitable zone: two of GJ 876's four planets and the planet that orbits HD 33564. We find that our value for GJ 876's stellar radius is more than 20 per cent larger than previous estimates and frequently used values in the astronomical literature. |
Keywords | Infrared stars; Planetary systems; fundamental parameters; late-type stars;interferometric; |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Public Notes | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2014 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
Institution of Origin | University of Southern Queensland |
Byline Affiliations | Max Planck Society, Germany |
Yale University, United States | |
Lowell Observatory, United States | |
San Francisco State University, United States | |
Georgia State University, United States | |
Mount Wilson Observatory, United States | |
National Aeronautics and Space Administration (NASA), United States | |
Center for Astrophysics Harvard and Smithsonian, United States | |
Mirasol Institute, Germany | |
National Optical Astronomy Observatory, United States |
https://research.usq.edu.au/item/q430w/stellar-diameters-and-temperatures-v-11-newly-characterized-exoplanet-host-stars
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