@article{bd02e06a913341cca140e114c0722b17,
title = "Science extraction from TESS observations of known exoplanet hosts",
abstract = "The transit method of exoplanet discovery and characterization has enabled numerous breakthroughs in exoplanetary science. These include measurements of planetary radii, mass–radius relationships, stellar obliquities, bulk density constraints on interior models, and transmission spectroscopy as a means to study planetary atmospheres. The Transiting Exoplanet Survey Satellite (TESS) has added to the exoplanet inventory by observing a significant fraction of the celestial sphere, including many stars already known to host exoplanets. Here we describe the science extraction from TESS observations of known exoplanet hosts during the primary mission. These include transit detection of known exoplanets, discovery of additional exoplanets, detection of phase signatures and secondary eclipses, transit ephemeris refinement, and asteroseismology as a means to improve stellar and planetary parameters. We provide the statistics of TESS known host observations during Cycle 1 and 2, and present several examples of TESS photometry for known host stars observed with a long baseline. We outline the major discoveries from observations of known hosts during the primary mission. Finally, we describe the case for further observations of known exoplanet hosts during the TESS extended mission and the expected science yield.",
keywords = "Asteroseismology, Ephemerides, Exoplanet atmospheres, Exoplanet systems, Exoplanets, Planet hosting stars, Space telescopes, Transit photometry, Transit timing variation method",
author = "Kane, {Stephen R.} and Bean, {Jacob L.} and Campante, {Tiago L.} and Dalba, {Paul A.} and Tara Fetherolf and Teo Mocnik and Colby Ostberg and Joshua Pepper and Simpson, {Emilie R.} and Turnbull, {Margaret C.} and Ricker, {George R.} and Roland Vanderspek and Latham, {David W.} and Sara Seager and Winn, {Joshua N.} and Jenkins, {Jon M.} and Daniel Huber and Chaplin, {William J.}",
note = "Funding Information: The authors would like to thank Darin Ragozzine for his contributions to the Guest Investigator program. S.R.K. acknowledges support by the National Aeronautics and Space Administration through the TESS Guest Investigator Program (17-TESS17C-1-0004). P.D. acknowledges support from a National Science Foundation Astronomy and Astrophysics Postdoctoral Fellowship under award AST-1903811. T.L.C. acknowledges support from the European Union{\textquoteright}s Horizon 2020 research and innovation program under the Marie Sk{\l}odowska-Curie grant agreement No.792848 (PULSATION). Funding for the TESS mission is provided by NASA{\textquoteright}s Science Mission directorate. This research has made use of the Exoplanet Follow-up Observation Program website, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. Resources supporting this work were provided by the NASA High-End Computing (HEC) Program through the NASA Advanced Supercomputing (NAS) Division at Ames Research Center for the production of the SPOC data products. This paper includes data collected by the TESS mission, which are publicly available from the Mikulski Archive for Space Telescopes (MAST). This research made use of Lightkurve, a Python package for Kepler and TESS data analysis. This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. The results reported herein benefited from collaborations and/or information exchange within NASA{\textquoteright}s Nexus for Exoplanet System Science (NExSS) research coordination network sponsored by NASA{\textquoteright}s Science Mission Directorate. Funding Information: The authors would like to thank Darin Ragozzine for his contributions to the Guest Investigator program. S.R.K. acknowledges support by the National Aeronautics and Space Administration through the TESS Guest Investigator Program (17-TESS17C-1-0004). P.D. acknowledges support from a National Science Foundation Astronomy and Astrophysics Postdoctoral Fellowship under award AST-1903811. T.L.C. acknowledges support from the European Union?s Horizon 2020 research and innovation program under the Marie Sk?odowska-Curie grant agreement No.792848 (PULSATION). Funding for the TESS mission is provided by NASA?s Science Mission directorate. This research has made use of the Exoplanet Follow-up Observation Program website, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. Resources supporting this work were provided by the NASA High-End Computing (HEC) Program through the NASA Advanced Supercomputing (NAS) Division at Ames Research Center for the production of the SPOC data products. This paper includes data collected by the TESS mission, which are publicly available from the Mikulski Archive for Space Telescopes (MAST). This research made use of Lightkurve, a Python package for Kepler and TESS data analysis. This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. The results reported herein benefited from collaborations and/or information exchange within NASA?s Nexus for Exoplanet System Science (NExSS) research coordination network spon-sored by NASA?s Science Mission Directorate. Software: Lightkurve (Lightkurve Collaboration et al. 2018). Publisher Copyright: {\textcopyright} 2020. The Astronomical Society of the Pacific. All rights reserved.",
year = "2021",
month = jan,
doi = "10.1088/1538-3873/abc610",
language = "English (US)",
volume = "133",
pages = "1--10",
journal = "Publications of the Astronomical Society of the Pacific",
issn = "0004-6280",
publisher = "University of Chicago",
number = "1019",
}