The Astronomical Journal (Jan 2023)
VaTEST. II. Statistical Validation of 11 TESS-detected Exoplanets Orbiting K-type Stars
- Priyashkumar Mistry,
- Kamlesh Pathak,
- Aniket Prasad,
- Georgios Lekkas,
- Surendra Bhattarai,
- Sarvesh Gharat,
- Mousam Maity,
- Dhruv Kumar,
- Karen A. Collins,
- Richard P. Schwarz,
- Christopher R. Mann,
- Elise Furlan,
- Steve B. Howell,
- David Ciardi,
- Allyson Bieryla,
- Elisabeth C. Matthews,
- Erica Gonzales,
- Carl Ziegler,
- Ian Crossfield,
- Steven Giacalone,
- Thiam-Guan Tan,
- Phil Evans,
- Krzysztof G. Hełminiak,
- Kevin I. Collins,
- Norio Narita,
- Akihiko Fukui,
- Francisco J. Pozuelos,
- Courtney Dressing,
- Abderahmane Soubkiou,
- Zouhair Benkhaldoun,
- Joshua E. Schlieder,
- Olga Suarez,
- Khalid Barkaoui,
- Enric Palle,
- Felipe Murgas,
- Gregor Srdoc,
- Maria V. Goliguzova,
- Ivan A. Strakhov,
- Crystal Gnilka,
- Kathryn Lester,
- Colin Littlefield,
- Nic Scott,
- Rachel Matson,
- Michaël Gillon,
- Emmanuel Jehin,
- Mathilde Timmermans,
- Mourad Ghachoui,
- Lyu Abe,
- Philippe Bendjoya,
- Tristan Guillot,
- Amaury H. M. J. Triaud
Affiliations
- Priyashkumar Mistry
- ORCiD
- Department of Physics, Sardar Vallabhbhai National Institute of Technology , Surat-395007, Gujarat, India ; [email protected]
- Kamlesh Pathak
- ORCiD
- Department of Physics, Sardar Vallabhbhai National Institute of Technology , Surat-395007, Gujarat, India ; [email protected]
- Aniket Prasad
- ORCiD
- Department of Physics, National Institute of Technology Agartala 799046, Tripura, India
- Georgios Lekkas
- ORCiD
- Department of Physics, University of Ioannina , Ioannina, 45110, Greece
- Surendra Bhattarai
- ORCiD
- Department of Physics, Indian Institute of Science Education and Research Kolkata , Mohanpur-741246, West Bengal, India
- Sarvesh Gharat
- ORCiD
- Centre for Machine Intelligence and Data Science, Indian Institute of Technology Bombay , India
- Mousam Maity
- ORCiD
- Department of Physics, Presidency University , Kolkata-700073, West Bengal, India
- Dhruv Kumar
- ORCiD
- Department of Physics, National Institute of Technology Agartala 799046, Tripura, India
- Karen A. Collins
- ORCiD
- Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA
- Richard P. Schwarz
- ORCiD
- Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA
- Christopher R. Mann
- ORCiD
- Département de physique, Université de Montréal , 1375 Avenue Thérèse-Lavoie-Roux, Montréal, Québec, H3T 1J4, Canada; Trottier Institute for Research on Exoplanets (iREx), Canada
- Elise Furlan
- ORCiD
- NASA Exoplanet Science Institute , Caltech/IPAC, Mail Code 100-22, 1200 E. California Boulevard, Pasadena, CA 91125, USA
- Steve B. Howell
- ORCiD
- NASA Ames Research Center , Moffett Field, CA 94035, USA
- David Ciardi
- ORCiD
- NASA Exoplanet Science Institute , Caltech/IPAC, Mail Code 100-22, 1200 E. California Boulevard, Pasadena, CA 91125, USA
- Allyson Bieryla
- ORCiD
- Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA
- Elisabeth C. Matthews
- ORCiD
- Max-Planck-Institut für Astronomie , Königstuhl 17, D-69117 Heidelberg, Germany
- Erica Gonzales
- ORCiD
- Department of Astronomy and Astrophysics, University of California Santa Cruz , Santa Cruz, CA 95064, USA
- Carl Ziegler
- ORCiD
- Department of Physics, Engineering and Astronomy, Stephen F. Austin State University , 1936 North Street, Nacogdoches, TX 75962, USA
- Ian Crossfield
- ORCiD
- Department of Physics & Astronomy, University of Kansas , KS 66045, USA
- Steven Giacalone
- ORCiD
- Department of Astronomy, University of California Berkeley , Berkeley, CA 94720, USA
- Thiam-Guan Tan
- ORCiD
- Perth Exoplanet Survey Telescope , Perth, Western Australia, Australia; Curtin Institute of Radio Astronomy, Curtin University , Bentley, Western Australia 6102, Australia
- Phil Evans
- ORCiD
- El Sauce Observatory, Coquimbo Province, Chile
- Krzysztof G. Hełminiak
- ORCiD
- Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences , ul. Rabiańska 8, 87-100 Toruń, Poland
- Kevin I. Collins
- ORCiD
- George Mason University, 4400 University Drive , Fairfax, VA, 22030 USA
- Norio Narita
- ORCiD
- Komaba Institute for Science, The University of Tokyo , 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan; Astrobiology Center , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; Instituto de Astrofisica de Canarias (IAC) , E-38205 La Laguna, Tenerife, Spain
- Akihiko Fukui
- ORCiD
- Komaba Institute for Science, The University of Tokyo , 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan; Instituto de Astrofisica de Canarias (IAC) , E-38205 La Laguna, Tenerife, Spain
- Francisco J. Pozuelos
- ORCiD
- Instituto de Astrofísica de Andalucía (IAA-CSIC) , Glorieta de la Astronomía s/n, E-18008 Granada, Spain
- Courtney Dressing
- ORCiD
- Department of Astronomy, University of California Berkeley , Berkeley, CA 94720, USA
- Abderahmane Soubkiou
- ORCiD
- Oukaimeden Observatory, High Energy Physics and Astrophysics Laboratory, Cadi Ayyad University , Marrakech, Morocco
- Zouhair Benkhaldoun
- ORCiD
- Oukaimeden Observatory, High Energy Physics and Astrophysics Laboratory, Cadi Ayyad University , Marrakech, Morocco
- Joshua E. Schlieder
- ORCiD
- NASA Goddard Space Flight Center , 8800 Greenbelt Road, Greenbelt, MD 20771, USA
- Olga Suarez
- ORCiD
- Université Côte d’Azur , Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, Bd de l’Observatoire, CS 34229, F-06304 Nice cedex 4, France
- Khalid Barkaoui
- ORCiD
- Astrobiology Research Unit, Université de Liège , 19C Allée du 6 Aot, B-4000 Liège, Belgium; Department of Earth, Atmospheric and Planetary Science , Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Instituto de Astrofísica de Canarias (IAC) , Calle Vía Láctea s/n, E-38200, La Laguna, Tenerife, Spain
- Enric Palle
- ORCiD
- Instituto de Astrofísica de Canarias (IAC) , E-38205 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206, La Laguna, Tenerife, Spain
- Felipe Murgas
- ORCiD
- Instituto de Astrofísica de Canarias (IAC) , E-38205 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206, La Laguna, Tenerife, Spain
- Gregor Srdoc
- Kotizarovci Observatory , Sarsoni 90, 51216 Viskovo, Croatia
- Maria V. Goliguzova
- ORCiD
- Sternberg Astronomical Institute, M.V. Lomonosov Moscow State University , 13, Universitetskii pr., 119234, Moscow, Russia
- Ivan A. Strakhov
- ORCiD
- Sternberg Astronomical Institute, M.V. Lomonosov Moscow State University , 13, Universitetskii pr., 119234, Moscow, Russia
- Crystal Gnilka
- ORCiD
- NASA Ames Research Center , Moffett Field, CA 94035, USA
- Kathryn Lester
- ORCiD
- NASA Ames Research Center , Moffett Field, CA 94035, USA
- Colin Littlefield
- ORCiD
- NASA Ames Research Center , Moffett Field, CA 94035, USA; Bay Area Environmental Research Institute , Moffett Field, CA 94035, USA
- Nic Scott
- ORCiD
- NASA Ames Research Center , Moffett Field, CA 94035, USA
- Rachel Matson
- ORCiD
- U.S. Naval Observatory , Washington, D.C. 20392, USA
- Michaël Gillon
- ORCiD
- Astrobiology Research Unit, Université de Liège , 19C Allée du 6 Aot, B-4000 Liège, Belgium
- Emmanuel Jehin
- ORCiD
- Space Sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège , 19C Allée du 6 Aot, B-4000 Liège, Belgium
- Mathilde Timmermans
- Astrobiology Research Unit, Université de Liège , 19C Allée du 6 Aot, B-4000 Liège, Belgium
- Mourad Ghachoui
- ORCiD
- Oukaimeden Observatory, High Energy Physics and Astrophysics Laboratory, Cadi Ayyad University , Marrakech, Morocco; Astrobiology Research Unit, Université de Liège , 19C Allée du 6 Aot, B-4000 Liège, Belgium
- Lyu Abe
- ORCiD
- Université Côte d’Azur , Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, Bd de l’Observatoire, CS 34229, F-06304 Nice cedex 4, France
- Philippe Bendjoya
- ORCiD
- Université Côte d’Azur , Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, Bd de l’Observatoire, CS 34229, F-06304 Nice cedex 4, France
- Tristan Guillot
- ORCiD
- Université Côte d’Azur , Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, Bd de l’Observatoire, CS 34229, F-06304 Nice cedex 4, France
- Amaury H. M. J. Triaud
- ORCiD
- School of Physics & Astronomy, University of Birmingham , Edgbaston, Birmingham B15 2TT, UK
- DOI
- https://doi.org/10.3847/1538-3881/acd548
- Journal volume & issue
-
Vol. 166,
no. 1
p. 9
Abstract
NASA’s Transiting Exoplanet Survey Satellite (TESS) is an all-sky survey mission designed to find transiting exoplanets orbiting nearby bright stars. It has identified more than 329 transiting exoplanets, and almost 6000 candidates remain unvalidated. In this manuscript, we discuss the findings from the ongoing Validation of Transiting Exoplanets using Statistical Tools (VaTEST) project, which aims to validate new exoplanets for further characterization. We validated 11 new exoplanets by examining the light curves of 24 candidates using the LATTE and TESS-Plot tools and computing the false-positive probabilities using the statistical validation tool TRICERATOPS . These include planets suitable for atmospheric characterization using transmission spectroscopy (TOI-2194b), emission spectroscopy (TOI-3082b and TOI-5704b) and for both transmission and emission spectroscopy (TOI-672b, TOI-1694b, and TOI-2443b). Our validated planets have one super-Earth (TOI-2194b) orbiting a bright ( V = 8.42 mag), metal-poor ([Fe/H] = −0.3720 ± 0.1) star, and one short-period Neptune-like planet (TOI-5704) in the hot-Neptune desert. In total, we validated one super-Earth, seven sub-Neptunes, one Neptune-like, and two sub-Saturn or super-Neptune-like exoplanets. Additionally, we identify five likely planet candidates (TOI-323, TOI-1180, TOI-2200, TOI-2408, and TOI-3913), which can be further studied to establish their planetary nature.
Keywords
