TESS Hunt for Young and Maturing Exoplanets
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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.
| 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 2 Newton, Elisabeth R.; Mann, Andrew W.; Tofflemire, Benjamin M.; Pearce, Logan; Rizzuto, Aaron C.; Vanderburg, Andrew; Martinez, Raquel A.; Wang, Jason J.; Ruffio, Jean-Baptiste; Kraus, Adam L.; Johnson, Marshall C.; Thao, Pa Chia; Wood, Mackenna L.; Rampalli, Rayna; Nielsen, Eric L. (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. arXiv:1906.10703. Bibcode:2019ApJ...880L..17N. doi:10.3847/2041-8213/ab2988. hdl:1721.1/124722. ISSN 0004-637X.
- 1 2 Newton, Elisabeth R.; Rampalli, Rayna; Kraus, Adam L.; Mann, Andrew W.; Curtis, Jason L.; Vanderburg, Andrew; Krolikowski, Daniel M.; Huber, Daniel; Petter, Grayson C.; Bieryla, Allyson; Tofflemire, Benjamin M.; Thao, Pa Chia; Wood, Mackenna L.; Kerr, Ronan; Safanov, Boris S. (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. arXiv:2206.06254. Bibcode:2022AJ....164..115N. doi:10.3847/1538-3881/ac8154. ISSN 0004-6256.
- ↑ 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.
- ↑ Barber, Madyson G.; Mann, Andrew W.; Bush, Jonathan L.; Tofflemire, Benjamin M.; Kraus, Adam L.; Krolikowski, Daniel M.; Vanderburg, Andrew; Fields, Matthew J.; Newton, Elisabeth R.; Owens, Dylan A.; Thao, Pa Chia (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. arXiv:2206.08383. Bibcode:2022AJ....164...88B. doi:10.3847/1538-3881/ac7b28. ISSN 0004-6256.
- 1 2 Rizzuto, Aaron C.; Newton, Elisabeth R.; Mann, Andrew W.; Tofflemire, Benjamin M.; Vanderburg, Andrew; Kraus, Adam L.; Wood, Mackenna L.; Quinn, Samuel N.; Zhou, George; Thao, Pa Chia; Law, Nicholas M.; Ziegler, Carl; Briceño, César (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. arXiv:2005.00013. Bibcode:2020AJ....160...33R. doi:10.3847/1538-3881/ab94b7. ISSN 0004-6256.
- ↑ Capistrant, Benjamin K.; Soares-Furtado, Melinda; Vanderburg, Andrew; Jankowski, Alyssa; Mann, Andrew W.; Ross, Gabrielle; Srdoc, Gregor; Hinkel, Natalie R.; Becker, Juliette; Magliano, Christian; Limbach, Mary Anne; Stephan, Alexander P.; Nine, Andrew C.; Tofflemire, Benjamin M.; Kraus, Adam L. (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. arXiv:2401.04785. Bibcode:2024AJ....167...54C. doi:10.3847/1538-3881/ad1039. ISSN 0004-6256.
- 1 2 Mann, Andrew W.; Johnson, Marshall C.; Vanderburg, Andrew; Kraus, Adam L.; Rizzuto, Aaron C.; Wood, Mackenna L.; Bush, Jonathan L.; Rockcliffe, Keighley; Newton, Elisabeth R.; Latham, David W.; Mamajek, Eric E.; Zhou, George; Quinn, Samuel N.; Thao, Pa Chia; Benatti, Serena (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. arXiv:2005.00047. Bibcode:2020AJ....160..179M. doi:10.3847/1538-3881/abae64. hdl:1721.1/134443.2. ISSN 0004-6256.
- 1 2 3 Newton, Elisabeth R.; Mann, Andrew W.; Kraus, Adam L.; Livingston, John H.; Vanderburg, Andrew; Curtis, Jason L.; Thao, Pa Chia; Hawkins, Keith; Wood, Mackenna L.; Rizzuto, Aaron C.; Soubkiou, Abderahmane; Tofflemire, Benjamin M.; Zhou, George; Crossfield, Ian J. M.; Pearce, Logan A. (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. arXiv:2102.06049. Bibcode:2021AJ....161...65N. doi:10.3847/1538-3881/abccc6. hdl:1721.1/134445.2. ISSN 0004-6256.
- ↑ Tofflemire, Benjamin M.; Rizzuto, Aaron C.; Newton, Elisabeth R.; Kraus, Adam L.; Mann, Andrew W.; Vanderburg, Andrew; Nelson, Tyler; Hawkins, Keith; Wood, Mackenna L.; Zhou, George; Quinn, Samuel N.; Howell, Steve B.; Collins, Karen A.; Schwarz, Richard P.; Stassun, Keivan G. (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. arXiv:2102.06066. Bibcode:2021AJ....161..171T. doi:10.3847/1538-3881/abdf53. hdl:1721.1/134444.2. ISSN 0004-6256.
- ↑ Mann, Andrew W.; Wood, Mackenna L.; Schmidt, Stephen P.; Barber, Madyson G.; Owen, James E.; Tofflemire, Benjamin M.; Newton, Elisabeth R.; Mamajek, Eric E.; Bush, Jonathan L.; Mace, Gregory N.; Kraus, Adam L.; Thao, Pa Chia; Vanderburg, Andrew; Llama, Joe; Johns-Krull, Christopher M. (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. arXiv:2110.09531. Bibcode:2022AJ....163..156M. doi:10.3847/1538-3881/ac511d. ISSN 0004-6256.
- ↑ Newton, Elisabeth R.; Rampalli, Rayna; Kraus, Adam L.; Mann, Andrew W.; Curtis, Jason L.; Vanderburg, Andrew; Krolikowski, Daniel M.; Huber, Daniel; Petter, Grayson C.; Bieryla, Allyson; Tofflemire, Benjamin M.; Thao, Pa Chia; Wood, Mackenna L.; Kerr, Ronan; Safanov, Boris S. (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. Bibcode:2023AJ....165..136N. doi:10.3847/1538-3881/acb589. ISSN 0004-6256.
- ↑ Barber, Madyson G.; Mann, Andrew W.; Bush, Jonathan L.; Tofflemire, Benjamin M.; Kraus, Adam L.; Krolikowski, Daniel M.; Vanderburg, Andrew; Fields, Matthew J.; Newton, Elisabeth R.; Owens, Dylan A.; Thao, Pa Chia (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. arXiv:2206.08383. Bibcode:2022AJ....164...88B. doi:10.3847/1538-3881/ac7b28. ISSN 0004-6256.
- 1 2 Wood, Mackenna L.; Mann, Andrew W.; Barber, Madyson G.; Bush, Jonathan L.; Kraus, Adam L.; Tofflemire, Benjamin M.; Vanderburg, Andrew; Newton, Elisabeth R.; Feiden, Gregory A.; Zhou, George; Bouma, Luke G.; Quinn, Samuel N.; Armstrong, David J.; Osborn, Ares; Adibekyan, Vardan (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. arXiv:2212.03266. Bibcode:2023AJ....165...85W. doi:10.3847/1538-3881/aca8fc. ISSN 0004-6256.
- 1 2 Thao, Pa Chia; Mann, Andrew W.; Barber, Madyson G.; Kraus, Adam L.; Tofflemire, Benjamin M.; Bush, Jonathan L.; Wood, Mackenna L.; Collins, Karen A.; Vanderburg, Andrew; Quinn, Samuel N.; Zhou, George; Newton, Elisabeth R.; Ziegler, Carl; Law, Nicholas; Barkaoui, Khalid (July 2024). "TESS Hunt for Young and Maturing Exoplanets (THYME). X. A Two-planet System in the 210 Myr MELANGE-5 Association". The Astronomical Journal. 168 (1): 41. arXiv:2406.05234. Bibcode:2024AJ....168...41T. doi:10.3847/1538-3881/ad4993. ISSN 0004-6256.
- ↑ Distler, Adam; Soares-Furtado, Melinda; Vanderburg, Andrew; Schulte, Jack; Becker, Juliette; Mann, Andrew W.; Howell, Steve B.; Kraus, Adam L.; Kerr, Ronan; Barkaoui, Khalid; Briceño, César; Collins, Karen A.; Conti, Dennis; Jenkins, Jon M.; Limbach, Mary Anne (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". The Astronomical Journal. 169 (3): 166. arXiv:2410.11990. Bibcode:2025AJ....169..166D. doi:10.3847/1538-3881/ada26a. ISSN 0004-6256.