Tau Ceti f

Tau Ceti f
Discovery
Discovery dateDecember 19, 2012
Doppler spectroscopy
Orbital characteristics
1.334 au
Eccentricity0.16
1.7 y
StarTau Ceti
Physical characteristics
~1.81 R🜨 (estimate)[1]
Mass≥3.93 M🜨

Tau Ceti f is a potential super-Earth[2] or mini-Neptune orbiting Tau Ceti that was discovered in 2012 by statistical analyses of the star's variations in radial velocity, based on data obtained using HIRES, AAPS, and HARPS. It is of interest because its orbit places it in Tau Ceti's extended habitable zone,[3][4] but a 2015 study implies that there may not be a detectable biosignature because it has only been in the temperate zone for less than one billion years.[5][6] In 2017, it was again recovered from radial-velocity data, along with Tau Ceti e. Despite this, it remains an unconfirmed candidate.[7]

  1. ^ Cite error: The named reference eyes was invoked but never defined (see the help page).
  2. ^ "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 2020-10-14.
  3. ^ "Two Nearby Habitable Worlds? - Planetary Habitability Laboratory @ UPR Arecibo". phl.upr.edu. Archived from the original on 2021-03-08. Retrieved 2020-10-07.
  4. ^ "Four Exoplanets Detected around Nearby Star Tau Ceti | Astronomy | Sci-News.com". Breaking Science News | Sci-News.com. Retrieved 2020-10-07.
  5. ^ April 2015, Mike Wall 24 (24 April 2015). "Nearby Alien Planets Not So Life-Friendly After All". Space.com. Retrieved 2020-10-07.{{cite web}}: CS1 maint: numeric names: authors list (link)
  6. ^ Pagano, Michael; Truitt, Amanda; Young, Patrick A.; Shim, Sang-Heon (2015-04-21). "THE CHEMICAL COMPOSITION OF τ CETI AND POSSIBLE EFFECTS ON TERRESTRIAL PLANETS". The Astrophysical Journal. 803 (2): 90. arXiv:1503.04189. doi:10.1088/0004-637X/803/2/90. ISSN 1538-4357.
  7. ^ Cite error: The named reference :0 was invoked but never defined (see the help page).