Astronomy:TESS Hunt for Young and Maturing Exoplanets

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Short description: Exoplanet search project

TESS Hunt for Young and Maturing Exoplanets (THYME) is an exoplanet search project. The researchers of the THYME collaboration are mainly from the United States[1][2] and search for young exoplanets using data from the Transiting Exoplanet Survey Satellite (TESS). The new discoveries should help to understand the early evolution of exoplanets.[3] As of April 2026 the collaboration has produced 14 papers announcing the discovery of exoplanets.

Paper number 8 adapted the backronym to "Transit Hunt for Young and Maturing Exoplanets", because it used data from the Kepler space telescope.[4] As a follow-up to the K2-based Zodiacal Exoplanets In Time (ZEIT) survey, which also has a time-based name, the THYME project's name pronunciation alludes to the young age of the planets it has discovered.

List of discoveries

Name orbital period

(days)

Radius

(R⊕)

age

(Myrs)

discovery year reference
DS Tuc Ab (TOI-200.01) 8.1 5.7 45 2019 [1]
HIP 67522 b 6.96 10.0 17 2020 [5]
HIP 67522 c (candidate) ≥23 8.01 17 2020 [5]
HD 63433 d 4.2 1.1 400 2024 [6]
HD 63433 b (TOI-1726.01) 7.11 2.15 400 2020 [7]
HD 63433 c (TOI-1726.02) 20.55 2.67 400 2020 [7]
TOI-451 b 1.9 1.9 120 2021 [8]
TOI-451 c 9.2 3.1 120 2021 [8]
TOI-451 d 16 4.1 120 2021 [8]
HD 110082 b (TOI-1098.01) 10.2 3.2 250 2021 [9]
TOI-1227 b 27.4 9.5 11 2022 [10]
TOI-2048 b 13.8 2.6[11] 300 2022 [2]
Kepler-1928 b 19.58 2.0 105 2022 [12]
HD 109833 b (TOI-1097.01) 9.19 2.9 27 2023 [13]
HD 109833 c (TOI-1097.02) 13.90 2.6 27 2023 [13]
TOI-1224 b 4.18 2.10 210 2024 [14]
TOI-1224 c 17.95 2.88 210 2024 [14]
TOI-4364 b 5.4 2.01 710 2025 [15]

References

  1. ↑ 1.0 1.1 Newton, Elisabeth R.; Mann, Andrew W.; Tofflemire, Benjamin M.; Pearce, Logan; Rizzuto, Aaron C.; Vanderburg, Andrew; Martinez, Raquel A.; Wang, Jason J. et al. (2019-07-01). "TESS Hunt for Young and Maturing Exoplanets (THYME): A Planet in the 45 Myr Tucana-Horologium Association". The Astrophysical Journal 880 (1): L17. doi:10.3847/2041-8213/ab2988. ISSN 0004-637X. Bibcode: 2019ApJ...880L..17N. 
  2. ↑ 2.0 2.1 Newton, Elisabeth R.; Rampalli, Rayna; Kraus, Adam L.; Mann, Andrew W.; Curtis, Jason L.; Vanderburg, Andrew; Krolikowski, Daniel M.; Huber, Daniel et al. (2022-09-01). "TESS Hunt for Young and Maturing Exoplanets (THYME). VII. Membership, Rotation, and Lithium in the Young Cluster Group-X and a New Young Exoplanet". The Astronomical Journal 164 (3): 115. doi:10.3847/1538-3881/ac8154. ISSN 0004-6256. Bibcode: 2022AJ....164..115N. 
  3. ↑ Tofflemire, B.; Newton, E.; Mann, A.; Rizzuto, A.; Vanderburg, A.; Kraus, A. (2020-01-01). "THYME: The TESS Hunt for Young and Maturing Exoplanets — Project Overview and Early Results". American Astronomical Society Meeting Abstracts #235 235: 174.18. Bibcode: 2020AAS...23517418T. https://ui.adsabs.harvard.edu/abs/2020AAS...23517418T. 
  4. ↑ Barber, Madyson G.; Mann, Andrew W.; Bush, Jonathan L.; Tofflemire, Benjamin M.; Kraus, Adam L.; Krolikowski, Daniel M.; Vanderburg, Andrew; Fields, Matthew J. et al. (2022-09-01). "Transit Hunt for Young and Maturing Exoplanets (THYME). VIII. A Pleiades-age Association Harboring Two Transiting Planetary Systems from Kepler". The Astronomical Journal 164 (3): 88. doi:10.3847/1538-3881/ac7b28. ISSN 0004-6256. Bibcode: 2022AJ....164...88B. 
  5. ↑ 5.0 5.1 Rizzuto, Aaron C.; Newton, Elisabeth R.; Mann, Andrew W.; Tofflemire, Benjamin M.; Vanderburg, Andrew; Kraus, Adam L.; Wood, Mackenna L.; Quinn, Samuel N. et al. (2020-07-01). "TESS Hunt for Young and Maturing Exoplanets (THYME). II. A 17 Myr Old Transiting Hot Jupiter in the Sco-Cen Association". The Astronomical Journal 160 (1): 33. doi:10.3847/1538-3881/ab94b7. ISSN 0004-6256. Bibcode: 2020AJ....160...33R. 
  6. ↑ Capistrant, Benjamin K.; Soares-Furtado, Melinda; Vanderburg, Andrew; Jankowski, Alyssa; Mann, Andrew W.; Ross, Gabrielle; Srdoc, Gregor; Hinkel, Natalie R. et al. (2024-02-01). "TESS Hunt for Young and Maturing Exoplanets (THYME). XI. An Earth-sized Planet Orbiting a Nearby, Solar-like Host in the 400 Myr Ursa Major Moving Group". The Astronomical Journal 167 (2): 54. doi:10.3847/1538-3881/ad1039. ISSN 0004-6256. Bibcode: 2024AJ....167...54C. 
  7. ↑ 7.0 7.1 Mann, Andrew W.; Johnson, Marshall C.; Vanderburg, Andrew; Kraus, Adam L.; Rizzuto, Aaron C.; Wood, Mackenna L.; Bush, Jonathan L.; Rockcliffe, Keighley et al. (2020-10-01). "TESS Hunt for Young and Maturing Exoplanets (THYME). III. A Two-planet System in the 400 Myr Ursa Major Group". The Astronomical Journal 160 (4): 179. doi:10.3847/1538-3881/abae64. ISSN 0004-6256. Bibcode: 2020AJ....160..179M. 
  8. ↑ 8.0 8.1 8.2 Newton, Elisabeth R.; Mann, Andrew W.; Kraus, Adam L.; Livingston, John H.; Vanderburg, Andrew; Curtis, Jason L.; Thao, Pa Chia; Hawkins, Keith et al. (2021-02-01). "TESS Hunt for Young and Maturing Exoplanets (THYME). IV. Three Small Planets Orbiting a 120 Myr Old Star in the Pisces-Eridanus Stream". The Astronomical Journal 161 (2): 65. doi:10.3847/1538-3881/abccc6. ISSN 0004-6256. Bibcode: 2021AJ....161...65N. 
  9. ↑ Tofflemire, Benjamin M.; Rizzuto, Aaron C.; Newton, Elisabeth R.; Kraus, Adam L.; Mann, Andrew W.; Vanderburg, Andrew; Nelson, Tyler; Hawkins, Keith et al. (2021-04-01). "TESS Hunt for Young and Maturing Exoplanets (THYME). V. A Sub-Neptune Transiting a Young Star in a Newly Discovered 250 Myr Association". The Astronomical Journal 161 (4): 171. doi:10.3847/1538-3881/abdf53. ISSN 0004-6256. Bibcode: 2021AJ....161..171T. 
  10. ↑ Mann, Andrew W.; Wood, Mackenna L.; Schmidt, Stephen P.; Barber, Madyson G.; Owen, James E.; Tofflemire, Benjamin M.; Newton, Elisabeth R.; Mamajek, Eric E. et al. (2022-04-01). "TESS Hunt for Young and Maturing Exoplanets (THYME). VI. An 11 Myr Giant Planet Transiting a Very-low-mass Star in Lower Centaurus Crux". The Astronomical Journal 163 (4): 156. doi:10.3847/1538-3881/ac511d. ISSN 0004-6256. Bibcode: 2022AJ....163..156M. 
  11. ↑ Newton, Elisabeth R.; Rampalli, Rayna; Kraus, Adam L.; Mann, Andrew W.; Curtis, Jason L.; Vanderburg, Andrew; Krolikowski, Daniel M.; Huber, Daniel et al. (2023-03-01). "Erratum: "TESS Hunt for Young and Maturing Exoplanets (THYME). VII. Membership, Rotation, and Lithium in the Young Cluster Group-X and a New Young Exoplanet" (2022, AJ, 164, 119)". The Astronomical Journal 165 (3): 136. doi:10.3847/1538-3881/acb589. ISSN 0004-6256. Bibcode: 2023AJ....165..136N. 
  12. ↑ Barber, Madyson G.; Mann, Andrew W.; Bush, Jonathan L.; Tofflemire, Benjamin M.; Kraus, Adam L.; Krolikowski, Daniel M.; Vanderburg, Andrew; Fields, Matthew J. et al. (2022-09-01). "Transit Hunt for Young and Maturing Exoplanets (THYME). VIII. A Pleiades-age Association Harboring Two Transiting Planetary Systems from Kepler". The Astronomical Journal 164 (3): 88. doi:10.3847/1538-3881/ac7b28. ISSN 0004-6256. Bibcode: 2022AJ....164...88B. 
  13. ↑ 13.0 13.1 Wood, Mackenna L.; Mann, Andrew W.; Barber, Madyson G.; Bush, Jonathan L.; Kraus, Adam L.; Tofflemire, Benjamin M.; Vanderburg, Andrew; Newton, Elisabeth R. et al. (2023-03-01). "TESS Hunt for Young and Maturing Exoplanets (THYME). IX. A 27 Myr Extended Population of Lower Centaurus Crux with a Transiting Two-planet System". The Astronomical Journal 165 (3): 85. doi:10.3847/1538-3881/aca8fc. ISSN 0004-6256. Bibcode: 2023AJ....165...85W. 
  14. ↑ 14.0 14.1 Thao, Pa Chia; Mann, Andrew W.; Barber, Madyson G.; Kraus, Adam L.; Tofflemire, Benjamin M.; Bush, Jonathan L.; Wood, Mackenna L.; Collins, Karen A. et al. (July 2024). "TESS Hunt for Young and Maturing Exoplanets (THYME). X. A Two-planet System in the 210 Myr MELANGE-5 Association" (in en). The Astronomical Journal 168 (1): 41. doi:10.3847/1538-3881/ad4993. ISSN 0004-6256. Bibcode: 2024AJ....168...41T. 
  15. ↑ Distler, Adam; Soares-Furtado, Melinda; Vanderburg, Andrew; Schulte, Jack; Becker, Juliette; Mann, Andrew W.; Howell, Steve B.; Kraus, Adam L. et al. (March 2025). "TESS Hunt for Young and Maturing Exoplanets (THYME). XII. A Young Mini-Neptune on the Upper Edge of the Radius Valley in the Hyades Cluster" (in en). The Astronomical Journal 169 (3): 166. doi:10.3847/1538-3881/ada26a. ISSN 0004-6256. Bibcode: 2025AJ....169..166D. 



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