Papers › VaTEST III: Validation of 8 Potential Super-Earths from TESS Data
VaTEST III: Validation of 8 Potential Super-Earths from TESS Data
Priyashkumar Mistry, Aniket Prasad, Mousam Maity, Kamlesh Pathak, Sarvesh Gharat, Georgios Lekkas, Surendra Bhattarai, Dhruv Kumar, Jack J. Lissauer, Joseph D. Twicken, Abderahmane Soubkiou, Francisco J. Pozuelos, Jon Jenkins, Keith Horne, Steven Giacalone, Khalid Barkaoui, Mathilde Timmermans, Cristilyn N. Watkins, Ramotholo Sefako, Karen A. Collins, Avi Shporer, Zouhair Benkhaldoun, Chris Stockdale, Emmanuël Jehin, Felipe Murgas, Martin Paegert, Michael B. Lund, Norio Narita, Richard P. Schwarz, Robert F. Goeke, Thiam-Guan Tan, Yugo Kawai
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NASA's all-sky survey mission, the Transiting Exoplanet Survey Satellite (TESS), is specifically engineered to detect exoplanets that transit bright stars. Thus far, TESS has successfully identified approximately 400 transiting exoplanets, in addition to roughly 6000 candidate exoplanets pending confirmation. In this study, we present the results of our ongoing project, the Validation of Transiting Exoplanets using Statistical Tools (VaTEST). Our dedicated effort is focused on the confirmation and characterization of new exoplanets through the application of statistical validation tools. Through a combination of ground-based telescope data, high-resolution imaging, and the utilization of the statistical validation tool known as \texttt{TRICERATOPS}, we have successfully discovered eight potential super-Earths. These planets bear the designations: TOI-238b (1.61^(+0.09) _(-0.10) R_⊕), TOI-771b (1.42^(+0.11) _(-0.09) R_⊕), TOI-871b (1.66^(+0.11) _(-0.11) R_⊕), TOI-1467b (1.83^(+0.16) _(-0.15) R_⊕), TOI-1739b (1.69^(+0.10) _(-0.08) R_⊕), TOI-2068b (1.82^(+0.16) _(-0.15) R_⊕), TOI-4559b (1.42^(+0.13) _(-0.11) R_⊕), and TOI-5799b (1.62^(+0.19) _(-0.13) R_⊕). Among all these planets, six of them fall within the region known as 'keystone planets,' which makes them particularly interesting for study. Based on the location of TOI-771b and TOI-4559b below the radius valley we characterized them as likely super-Earths, though radial velocity mass measurements for these planets will provide more details about their characterization. It is noteworthy that planets within the size range investigated herein are absent from our own solar system, making their study crucial for gaining insights into the evolutionary stages between Earth and Neptune.
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