Science Extraction from TESS Observations of Known Exoplanet Hosts
Stephen R. Kane, Jacob L. Bean, Tiago L. Campante, Paul A. Dalba, Tara, Fetherolf, Teo Mocnik, Colby Ostberg, Joshua Pepper, Emilie R. Simpson,, Margaret C. Turnbull, George R. Ricker, Roland Vanderspek, David W. Latham,, Sara Seager, Joshua N. Winn, Jon M. Jenkins, Daniel Huber

TL;DR
This paper discusses the analysis of TESS observations of known exoplanet host stars, highlighting discoveries, parameter refinements, and the potential for future observations to enhance exoplanet science.
Contribution
It presents the methods and results of extracting scientific data from TESS observations of known exoplanet hosts, including new discoveries and parameter improvements.
Findings
Detection of known exoplanets and additional planets
Refinement of transit ephemerides and stellar parameters
Identification of phase signatures and secondary eclipses
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…
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