The TESS-Keck Survey

Exoplanet search project

The TESS-Keck Survey or TKS is an exoplanet search project that uses the Keck I and the Automated Planet Finder (APF) to conduct ground-based follow-up of planet candidates discovered by the Transiting Exoplanet Survey Satellite.[1] The TKS aims to measure the mass for about 100 exoplanets[2] and has been awarded some of the largest time allocations in the histories of Keck I and APF.[1] The program has four main science themes:[2]

  1. the bulk compositions of small planets
  2. dynamical temperatures and system architectures
  3. a larger, more refined sample for future atmospheric studies
  4. planets orbiting evolved stars

List of discoveries

Name class Radius

(R🜨)

Mass

(ME)

bulk density

(g/cm3)

orbital period

(days)

discovery year note reference
HD 332231 b warm sub-Saturn 9.744 76.32 0.464 18.71 2020 [3]
TOI-561 b super-earth 1.45 3.2 5.5 0.44 2021 old metal-poor host star [4]
TOI-561 c sub-Neptune 2.90 6.5 1.6 10.8 2021 old metal-poor host star [4]
TOI-561 d sub-Neptune 2.32 2.4 1.3 16.4 2021 metal-poor host star [4]
HD 63935 b sub-Neptune 2.99 10.8 2.2 9.06 2021 [5]
HD 63935 c sub-Neptune 2.90 11.1 2.5 21.40 2021 [5]
HIP-97166 b sub-Neptune 2.7 20 5.3 10.3 2021 eccentric orbit [6]
HIP-97166 c sub-Neptune 10 16.8 2021 eccentric orbit [6]
TOI-2180 b giant planet 11.3 890.4 3.32 260.8 2022 originally found by citizen scientists of Planet Hunters, planet with eccentric orbit [7]
HD 191939 e warm Saturn 108 101.5 2022 study also announced the mass of the other planets [8]
HD 191939 f giant planet ≥630 1700-7200 2022 candidate [8]
TOI-1444 b super-earth 1.4 3.87 0.47 2021 [9]
TOI-1444 c 11.8 16 2021 candidate [10]
TOI-1246 e >25.6 93.8 2022 candidate, study also announced the mass of the other planets [11]
TOI-1272 b hot Neptune 4.1 25 1.9 3.3 2022 eccentric orbit [12]
TOI-1272 c 27 8.7 2022 [13]
TOI-1669 c giant planet 191 501 2022 planet b is a close-in small planet (about 4 ME) [14]
TOI-1694 c giant planet 295 393 2022 planet b is a close-in small planet (31 ME) [14]
HIP 8152 b (TOI-266) sub-Neptune 2.6 7.8 2.5 10.75 2023 [15]
HIP 8152 c sub-Neptune 2.5 9.4 3.4 19.61 2023 [15]
HD 42813 b (TOI-469) sub-Neptune 3.4 5.8 0.8 13.63 2023 star is metal-rich, planet has relative low density [15]
HD 25463 b (TOI-554) sub-Neptune 2.6 8.5 2.6 7.05 2023 [15]
HD 25463 c super-Earth 1.5 <4.1 <7.1 3.04 2023 [15]
TOI-669 b hot sub-Neptune 2.6 9.8 3.0 3.95 2023 [15]
HD 135694 b (TOI-1247) warm sub-Neptune 2.51 5.7 2.0 15.92 2023 [15]
HD 6061 b (TOI-1473) hot sub-Neptune 2.45 10.8 4.0 5.25 2023 [15]
TOI-1736 b sub-Neptune 3.1 11.9 2.3 7.07 2023 star is a subgiant [15]
TOI-1736 c temperature super-Jovian >2477 571.3 2023 not transiting, in a moderately eccentric orbit [15]
TOI-1386 b warm sub-Saturn 6.05 47 1.16 25.84 2024 orbits a solar analogue [16]
TOI-1386 c >98 227.6 2024 not transiting [16]
TOI-1347 b ultra-short period planet 1.8 11.1 9.9 0.85 2024 possible high molecular weight atmosphere [17]
TOI-1347 c 1.6 <6.4 <4.1 4.84 2024 [17]
TOI-329 b Neptune size 4.72 40.8 2.13 5.70 2024 old subgiant host star; moderate eccentric orbit e=0.39 [18]
HD 39688 b (TOI-480) Earth-density 2.69 15.7 4.42 6.86 2024 [18]
TOI-603 b 7.93 47.5 0.52 16.17 2024 subgiant host star [18]
TOI-1199 b giant planet 10.60 69.4 0.32 3.67 2024 [18]
TOI-1294 b Saturn-sized 9.19 62.2 0.44 3.91 2024 massive metal-rich host star [18]
TOI-1294 c 148.3 160.1 2024 not transiting [18]
TOI-1439 b Neptune-sized 4.15 38.4 2.94 27.64 2024 metal-rich subgiant host star [18]
TOI-1605 b Jupiter-sized 10.34 221.3 8.70 2024 solar-like metallicity host star; eccentric orbit e=0.28 [18]
TOI-1828 b hot Jupiter 8.62 58.5 0.50 9.09 2024 subgiant host star; eccentric orbit e=0.31 [18]
HD 148193 b (TOI-1836) 8.38 28.4 0.27 20.38 2024 young and hot subgiant host star [18]
TOI-1885 b giant planet 13.66 516.4 1.12 6.54 2024 young and hot host star [18]
HD 83342 b (TOI-1898) warm Jupiter 9.74 127.5 0.76 45.52 2024 CTOI of Planet Hunters: TESS; highly eccentric orbit e=0.48 [19][18]
TOI-2019 b 5.66 34.6 1.05 15.34 2024 cool metal-rich subgiant host star [18]
TOI-1736 c 2477 571.3 2024 eccentric orbit e=0.37 [18]
TOI-1751 b sub-Neptune 2.77 14.5 3.6 37.47 2024 slightly evolved solar-type metal-poor star [20]

Follow-up works by TKS studied the already discovered planets TOI-1726 c[21] and WASP-107b.[22]

References

  1. ^ a b "The TESS-Keck Survey". faculty.sites.uci.edu. Retrieved 2022-09-09.
  2. ^ a b Chontos, Ashley; Murphy, Joseph M. Akana; MacDougall, Mason G.; Fetherolf, Tara; Van Zandt, Judah; Rubenzahl, Ryan A.; Beard, Corey; Huber, Daniel; Batalha, Natalie M.; Crossfield, Ian J. M.; Dressing, Courtney D.; Fulton, Benjamin; Howard, Andrew W.; Isaacson, Howard; Kane, Stephen R. (2022-06-01). "The TESS-Keck Survey: Science Goals and Target Selection". The Astronomical Journal. 163 (6): 297. arXiv:2106.06156. Bibcode:2022AJ....163..297C. doi:10.3847/1538-3881/ac6266. ISSN 0004-6256. S2CID 235417319.
  3. ^ Dalba, Paul A.; Gupta, Arvind F.; Rodriguez, Joseph E.; Dragomir, Diana; Huang, Chelsea X.; Kane, Stephen R.; Quinn, Samuel N.; Bieryla, Allyson; Esquerdo, Gilbert A.; Fulton, Benjamin J.; Scarsdale, Nicholas; Batalha, Natalie M.; Beard, Corey; Behmard, Aida; Chontos, Ashley (2020-05-01). "The TESS-Keck Survey. I. A Warm Sub-Saturn-mass Planet and a Caution about Stray Light in TESS Cameras". The Astronomical Journal. 159 (5): 241. arXiv:2003.10451. Bibcode:2020AJ....159..241D. doi:10.3847/1538-3881/ab84e3. hdl:1721.1/132405.2. ISSN 0004-6256. S2CID 214623340.
  4. ^ a b c Weiss, Lauren M.; Dai, Fei; Huber, Daniel; Brewer, John M.; Collins, Karen A.; Ciardi, David R.; Matthews, Elisabeth C.; Ziegler, Carl; Howell, Steve B.; Batalha, Natalie M.; Crossfield, Ian J. M.; Dressing, Courtney; Fulton, Benjamin; Howard, Andrew W.; Isaacson, Howard (2021-02-01). "The TESS-Keck Survey. II. An Ultra-short-period Rocky Planet and Its Siblings Transiting the Galactic Thick-disk Star TOI-561". The Astronomical Journal. 161 (2): 56. arXiv:2009.03071. Bibcode:2021AJ....161...56W. doi:10.3847/1538-3881/abd409. ISSN 0004-6256. S2CID 229279232.
  5. ^ a b Scarsdale, Nicholas; Murphy, Joseph M. Akana; Batalha, Natalie M.; Crossfield, Ian J. M.; Dressing, Courtney D.; Fulton, Benjamin; Howard, Andrew W.; Huber, Daniel; Isaacson, Howard; Kane, Stephen R.; Petigura, Erik A.; Robertson, Paul; Roy, Arpita; Weiss, Lauren M.; Beard, Corey (2021-11-01). "TESS-Keck Survey. V. Twin Sub-Neptunes Transiting the Nearby G Star HD 63935". The Astronomical Journal. 162 (5): 215. arXiv:2110.06885. Bibcode:2021AJ....162..215S. doi:10.3847/1538-3881/ac18cb. ISSN 0004-6256. S2CID 238743956.
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