TY - JOUR
T1 - TESS Transit Timing of Hundreds of Hot Jupiters
AU - Ivshina, Ekaterina S.
AU - Winn, Joshua N.
N1 - Funding Information:
We are grateful to Filip Walter for compiling and providing the Exoplanet Transit Database in a convenient format, although we ultimately did not include those data in our analyses. We thank Sarah Millholland, Vadim Krushinsky, and Luke Bouma for helpful comments on the draft of this paper. We would also like to thank Betsy Pu for her help with the development of our project’s website. This work was supported by the Heising-Simons Foundation and the NASA TESS mission. This work relied on the NASA Astrophysics Data System and the arXiv. We also acknowledge the use of the Extrasolar Planets Encyclopedia at exoplanet.eu (Schneider et al. ); 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 (NASA Exoplanet Archive). The authors are pleased to acknowledge that the work reported in this paper was substantially performed using the Princeton Research Computing resources at Princeton University which is a consortium of groups led by the Princeton Institute for Computational Science and Engineering and Office of Information Technology’s Research Computing.
Publisher Copyright:
© 2022. The American Astronomical Society. All rights reserved.
PY - 2022/4/1
Y1 - 2022/4/1
N2 - We provide a database of transit times and updated ephemerides for 382 planets based on data from the NASA Transiting Exoplanet Survey Satellite (TESS) and previously reported transit times, which were scraped from the literature in a semiautomated fashion. In total, our database contains 8667 transit-timing measurements for 382 systems. About 240 planets in the catalog are hot Jupiters (i.e., planets with mass >0.3 M Jup and period <10 days) that have been observed by TESS. The new ephemerides are useful for scheduling follow-up observations and searching for long-term period changes. WASP-12 remains the only system for which a period change is securely detected. We remark on other cases of interest, such as a few systems with suggestive (but not yet convincing) evidence for period changes, and the detection of a second transiting planet in the NGTS-11 system. The compilation of light curves, transit times, ephemerides, and timing residuals are made available online, along with the Python code that generated them (visit https://transit-timing.github.io).
AB - We provide a database of transit times and updated ephemerides for 382 planets based on data from the NASA Transiting Exoplanet Survey Satellite (TESS) and previously reported transit times, which were scraped from the literature in a semiautomated fashion. In total, our database contains 8667 transit-timing measurements for 382 systems. About 240 planets in the catalog are hot Jupiters (i.e., planets with mass >0.3 M Jup and period <10 days) that have been observed by TESS. The new ephemerides are useful for scheduling follow-up observations and searching for long-term period changes. WASP-12 remains the only system for which a period change is securely detected. We remark on other cases of interest, such as a few systems with suggestive (but not yet convincing) evidence for period changes, and the detection of a second transiting planet in the NGTS-11 system. The compilation of light curves, transit times, ephemerides, and timing residuals are made available online, along with the Python code that generated them (visit https://transit-timing.github.io).
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U2 - 10.3847/1538-4365/ac545b
DO - 10.3847/1538-4365/ac545b
M3 - Article
AN - SCOPUS:85128598399
SN - 0067-0049
VL - 259
JO - Astrophysical Journal, Supplement Series
JF - Astrophysical Journal, Supplement Series
IS - 2
M1 - 62
ER -