TESS discovery of a super-Earth orbiting the M-dwarf star TOI-1680

  • M. Ghachoui
  • , A. Soubkiou
  • , R. D. Wells
  • , B. V. Rackham
  • , A. H.M.J. Triaud
  • , D. Sebastian
  • , S. Giacalone
  • , K. G. Stassun
  • , D. R. Ciardi
  • , K. A. Collins
  • , A. Liu
  • , Y. Gómez Maqueo Chew
  • , M. Gillon
  • , Z. Benkhaldoun
  • , L. Delrez
  • , J. D. Eastman
  • , O. Demangeon
  • , K. Barkaoui
  • , A. Burdanov
  • , B. O. Demory
  • J. De Wit, G. Dransfield, E. Ducrot, L. Garcia, M. A. Gómez-Muñoz, M. J. Hooton, E. Jehin, C. A. Murray, P. P. Pedersen, F. J. Pozuelos, D. Queloz, L. Sabin, N. Schanche, M. Timmermans, E. J. Gonzales, C. D. Dressing, C. Aganze, A. J. Burgasser, R. Gerasimov, C. Hsu, C. A. Theissen, D. Charbonneau, J. M. Jenkins, D. W. Latham, G. Ricker, S. Seager, A. Shporer, J. D. Twicken, R. Vanderspek, J. N. Winn, K. I. Collins, A. Fukui, T. Gan, N. Narita, R. P. Schwarz

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

We report the discovery by the TESS mission of a super-Earth on a 4.8-days orbit around an inactive M4.5 dwarf (TOI-1680), validated by ground-based facilities. The host star is located 37.14 pc away, with a radius of 0.2100 ± 0.0064 R, mass of 0.1800 ± 0.0044 M, and an effective temperature of 3211 ±100 K. We validated and characterized the planet using TESS data, ground-based multi-wavelength photometry from TRAPPIST, SPECULOOS, and LCO, as well as high-resolution AO observations from Keck/NIRC2 and Shane. Our analyses have determined the following parameters for the planet: a radius of 1.4660.049+0.063 R and an equilibrium temperature of 404 ± 14 K, assuming no albedo and perfect heat redistribution. Assuming a mass based on mass-radius relations, this planet is a promising target for atmospheric characterization with the James Webb Space Telescope (JWST).

Original languageEnglish (US)
Article numberA31
JournalAstronomy and Astrophysics
Volume677
DOIs
StatePublished - Sep 1 2023

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • Planets and satellites: detection
  • Techniques: photometric

Fingerprint

Dive into the research topics of 'TESS discovery of a super-Earth orbiting the M-dwarf star TOI-1680'. Together they form a unique fingerprint.

Cite this