A catalog of stars observed simultaneously by Kepler and TESS
Thomas Barclay, Geert Barentsen

TL;DR
This paper presents a catalog of 171 stars observed simultaneously by Kepler and TESS in 2018, enabling direct comparison of their data to study instrumental systematics and improve astrophysical analyses.
Contribution
It provides the first dataset of simultaneous, long-duration, high-precision observations of the same stars from both Kepler and TESS missions.
Findings
Identified 171 targets observed by both missions during 2018.
Targets range from Tmag 6.7 to 18.4, including 93 brighter than Tmag 15.
Dataset allows exploration of instrumental systematics in Kepler and TESS data.
Abstract
The Kepler spacecraft provided the first long-baseline, high-precision photometry for large numbers of stars. This enabled the discovery of thousands of new exoplanets, and the characterization of myriad astrophysical phenomena. However, one of the challenges with interpreting Kepler data has been that no instrument has provided a comparison dataset. Therefore, the replication of Kepler time-series data has remained elusive. The Transiting Exoplanet Survey Satellite (TESS) launched in April 2018 and began science operations in July 2018. During the TESS primary mission, it will survey 85% of the sky. NASA's first two observatories dedicated to discovering exoplanets, Kepler and TESS, were simultaneously operating during 2018. While the Kepler's K2 mission surveyed the ecliptic plane, TESS targets fields outside the ecliptic. However, during September 2018, a small region of the sky was…
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Taxonomy
TopicsStellar, planetary, and galactic studies · Astronomy and Astrophysical Research · Astronomical Observations and Instrumentation
