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User:21.Andromedae/List of exoplanets discovered using astrometry

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Astrometry has been used to discover a handful number of exoplanets, mostly gas giants more massive than Jupiter. It is based on measuring a star's proper motion, and seeing how that position changes over time: A planet with is able to gravitationally pull its host star, making its proper motion vary over large timescales. This cause a proper motion discrepancy between two observations (e.g. Hipparcos and Gaia). This list contains some discoveries using this method, separated by confirmed and candidate status.

Confirmed planets using astrometry

[edit]
Name Mass Semi-major axis
(AU) 		Orbital period
(years) 		Eccentricity Inclination
(°) 		Discovery year Distance
(ly) 		Host star mass
(M☉) 		Host star radius
(R☉) 		Host star temperature
(K) 		Notes and references
EQ Pegasi Ab 2.26±0.57 MJ 0.643±0.001 0.779±0.004 0.35±0.19 69.20±25.61 2022 20.428±0.004

[1]

0.436±0.001 0.409±0.016[2] 3,491±35[2] [3]
Gaia-4 b 11.80+0.73
−0.66 MJ 		1.565±0.004 0.338+0.026
−0.023 		116.9+4.2
−4.4 		2024 240.4 ± 0.3262 0.644+0.025
−0.023 		0.624+0.014
−0.015 		4,034±77 [4]
HD 11506 d 12.8+0.6
−0.5 MJ 		18.20+0.06
−0.09 		72.6+0.7
−0.8 		0.29+0.02
−0.03 		90+6
−5 		2022 167.0±0.2[5] 1.22±0.02 1.06±0.01[6] 5,833±28[6] [7]
HD 28185 c 5.68+0.44
−0.36 MJ 		8.54+0.21
−0.14 		25.27+0.91
−0.61 		0.15±0.04 73+10.0
−8.4 or 109.5+9.1
−12.0 		2022 128.0±0.1 0.974±0.018 1.048±0.015 5,602±36 Initially discovered as a brown dwarf, revealed to be an exoplanet by later studies.[8][9]


Planetary parameters from Feng et al. 2024,[9] stellar parameters from Venner et al. 2024.[8]

HD 75898 c 8.49+0.65
−0.63 MJ 		7.39+0.04
−0.05 		18.39+0.12
−0.11 		0.08±0.01 153+2
−3 		2024 254.6±0.7[10] 1.295±0.015 1.58±0.11[11] 6,122±52 [7]
HD 128717 b 12.8 MJ 2.18 3.0 2024 240 ± 0.55 1.17+0.06
−0.16 		1.275 6,158±115 [12]
HD 176051 b 1.5±0.3 or 2.26 MJ 1.76 or 2.02 2.78±0.11 115.8±8.2 2010 48.4±0.261[13] 0.71 (B) or 1.07 (A) 0.81 (B) or 1.06 (A)[14] 6,000 (A)[15] Orbiting either HD 176051 A or HD 176051 B, but more likely orbiting the latter.[16][17]
HD 222237 b 5.19±0.58 MJ 10.8+1.1
−1.0 		40.8+5.8
−4.5 		0.56±0.03 49.9+3.4
−2.8 		2024 37.3 0.76±0.09 0.71±0.06 4,751±139 [18]
TVLM 513–46546 b 0.347–0.418 MJ 0.279–0.307 0.61±0.014 ~0 ~80 2020 35.01±0.05

[19]

0.06–0.08[20] 0.097–0.109[20] 2,247±55[21] [22]


Candidate planets using astrometry

[edit]

Apart of the candidates shown here, there are 9,698 candidates shown in a paper[23] and many more detected via Hipparcos-Gaia astrometry in another studies.[24][25]

Name Mass Semi-major axis
(AU) 		Orbital period
(years) 		Temperature
(K) 		Eccentricity Inclination
(°) 		Discovery year Distance
(ly) 		Host star mass
(M☉) 		Host star radius
(R☉) 		Host star temperature
(K) 		Notes and references
Gliese 65 b 36±6 or 39±7 M🜨 0.274±0.002 or 0.283±0.002 0.427±0.003 0.27±0.21 or 0.33±0.30 88±6 or 89±9 2024 8.7 0.122 (A) or 0.116 (B) 0.165 (A) or 0.159 (B)[26] 2,784±58 (A) 2,728±60 (B)[27] Orbiting either GJ 65 A or B[28]


References

[edit]
  1. ^ Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  2. ^ a b Mann, Andrew W.; et al. (May 2015). "How to Constrain Your M Dwarf: Measuring Effective Temperature, Bolometric Luminosity, Mass, and Radius". The Astrophysical Journal. 804 (1): 38. arXiv:1501.01635. Bibcode:2015ApJ...804...64M. doi:10.1088/0004-637X/804/1/64. S2CID 19269312. 64.
  3. ^ Curiel, Salvador; Ortiz-León, Gisela N.; Mioduszewski, Amy J.; Sanchez-Bermudez, Joel (September 2022). "3D Orbital Architecture of a Dwarf Binary System and Its Planetary Companion". The Astronomical Journal. 164 (3): 93. arXiv:2208.14553. Bibcode:2022AJ....164...93C. doi:10.3847/1538-3881/ac7c66. S2CID 251953478.
  4. ^ Stefansson, Gudmundur; Mahadevan, Suvrath; Winn, Joshua; Marcussen, Marcus; Kanodia, Shubham; Albrecht, Simon; Fitzmaurice, Evan; Mikulskitye, One; Cañas, Caleb (2024-10-08). "Gaia-4b and 5b: Radial Velocity Confirmation of Gaia Astrometric Orbital Solutions Reveal a Massive Planet and a Brown Dwarf Orbiting Low-mass Stars". arXiv:2410.05654. doi:10.48550/arXiv.2410.05654. {{cite arXiv}}: |access-date= requires |url= (help); Unknown parameter |access-date= ignored (help); Unknown parameter |doi= ignored (help) A bot will complete this citation soon. Click here to jump the queue
  5. ^ Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  6. ^ a b Bonfanti, A.; et al. (2015). "Revising the ages of planet-hosting stars". Astronomy and Astrophysics. 575. A18. arXiv:1411.4302. Bibcode:2015A&A...575A..18B. doi:10.1051/0004-6361/201424951. S2CID 54555839.
  7. ^ a b Ruggieri, A.; Desidera, S.; et al. (September 2024). "The GAPS Programme at TNG: LVIII. Two multi-planet systems with long-period substellar companions around metal-rich stars". Astronomy & Astrophysics. 689: A235. Bibcode:2024A&A...689A.235R. doi:10.1051/0004-6361/202449456.
  8. ^ a b Venner, Alexander; An, Qier; et al. (October 2024). "HD 28185 Revisited: An outer planet, instead of a brown dwarf, on a saturn-like orbit". Monthly Notices of the Royal Astronomical Society. 535 (1): 90–106. arXiv:2410.14218. Bibcode:2024MNRAS.535...90V. doi:10.1093/mnras/stae2336.
  9. ^ a b Feng, Fabo; Xiao, Guang-Yao; Jones, Hugh R. A.; Jenkins, James S.; Pena, Pablo; Sun, Qinghui (2024-12-19). "Lessons learned from the detection of wide companions by radial velocity and astrometry". arXiv:2412.14542 [astro-ph.EP].
  10. ^ Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  11. ^ Ment, Kristo; et al. (2018-10). "Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810". The Astronomical Journal. 156 (5). 213. arXiv:1809.01228. Bibcode:2018AJ....156..213M. doi:10.3847/1538-3881/aae1f5. S2CID 119243619. {{cite journal}}: Check date values in: |year= (help)
  12. ^ "The Extrasolar Planet Encyclopaedia — HD 128717 b". Extrasolar Planets Encyclopaedia. Paris Observatory. Retrieved 2024-12-27.
  13. ^ van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600.
  14. ^ Johnson, H. M.; et al. (1983). "Predicted infrared brightness of stars within 25 parsecs of the sun". The Astrophysical Journal Supplement Series. 53: 643. Bibcode:1983ApJS...53..643J. doi:10.1086/190905."VizieR−GJ 738A/738B"
  15. ^ Luck, R. E.; Heiter, U. (2006). "Dwarfs in the local region". Astronomical Journal. 131 (6): 3069–3092. Bibcode:2006AJ....131.3069L. doi:10.1086/504080.
  16. ^ Martin, Pierre-Yves (2024). "Planet HD 176051 Bb". exoplanet.eu. Retrieved 2025-01-20.
  17. ^ Muterspaugh, Matthew W.; Lane, Benjamin F.; Kulkarni, S. R.; Konacki, Maciej; Burke, Bernard F.; Colavita, M. M.; Shao, M.; Hartkopf, William I.; Boss, Alan P.; Williamson, M. (2010-12-01). "THE PHASES DIFFERENTIAL ASTROMETRY DATA ARCHIVE. V. CANDIDATE SUBSTELLAR COMPANIONS TO BINARY SYSTEMS". The Astronomical Journal. 140 (6): 1657–1671. doi:10.1088/0004-6256/140/6/1657. ISSN 0004-6256.
  18. ^ Xiao, Guang-Yao; Feng, Fabo; Shectman, Stephen A; Tinney, C G; Teske, Johanna K; Carter, B D; Jones, H R A; Wittenmyer, Robert A; Díaz, Matías R; Crane, Jeffrey D; Wang, Sharon X; Bailey, J; O’Toole, S J; Feinstein, Adina D; Rice, Malena (2024-09-26). "HD 222237 b: a long-period super-Jupiter around a nearby star revealed by radial-velocity and Hipparcos–Gaia astrometry". Monthly Notices of the Royal Astronomical Society. 534 (3): 2858–2874. doi:10.1093/mnras/stae2151. ISSN 0035-8711.{{cite journal}}: CS1 maint: unflagged free DOI (link)
  19. ^ Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  20. ^ a b Hallinan, G.; Antonova, A.; Doyle, J. G.; Bourke, S.; Lane, C.; Golden, A. (2008-09-01). "Confirmation of the Electron Cyclotron Maser Instability as the Dominant Source of Radio Emission from Very Low Mass Stars and Brown Dwarfs". The Astrophysical Journal. 684 (1): 644. arXiv:0805.4010. Bibcode:2008ApJ...684..644H. doi:10.1086/590360. ISSN 0004-637X.
  21. ^ Filippazzo, Joseph C.; Rice, Emily L.; Faherty, Jacqueline; Cruz, Kelle L.; Van Gordon, Mollie M.; Looper, Dagny L. (2015-09-10). "Fundamental Parameters and Spectral Energy Distributions of Young and Field Age Objects with Masses Spanning the Stellar to Planetary Regime". The Astrophysical Journal. 810 (2): 158. arXiv:1508.01767. Bibcode:2015ApJ...810..158F. doi:10.1088/0004-637X/810/2/158. ISSN 1538-4357.
  22. ^ Curiel, Salvador; Ortiz-León, Gisela N.; Mioduszewski, Amy J.; Torres, Rosa M. (2020-08). "An Astrometric Planetary Companion Candidate to the M9 Dwarf TVLM 513–46546". The Astronomical Journal. 160 (3): 97. doi:10.3847/1538-3881/ab9e6e. ISSN 1538-3881. {{cite journal}}: Check date values in: |date= (help)CS1 maint: unflagged free DOI (link)
  23. ^ Kiefer, Flavien; Lagrange, Anne-Marie; Rubini, Pascal; Philipot, Florian (2024-09-27). "Searching for substellar companion candidates with Gaia. II. A catalog of 9,698 planet candidate solar-type hosts". arXiv:2409.16993. A bot will complete this citation soon. Click here to jump the queue
  24. ^ Kervella, Pierre; et al. (March 2019). "Stellar and substellar companions of nearby stars from Gaia DR2. Binarity from proper motion anomaly". Astronomy & Astrophysics. 623: 23. arXiv:1811.08902. Bibcode:2019A&A...623A..72K. doi:10.1051/0004-6361/201834371. S2CID 119491061. A72.{{cite journal}}: CS1 maint: postscript (link)
  25. ^ Cite error: The named reference Kervella2022 was invoked but never defined (see the help page).
  26. ^ Kervella, Pierre; et al. (October 2016). "The red dwarf pair GJ65 AB: inflated, spinning twins of Proxima. Fundamental parameters from PIONIER, NACO, and UVES observations". Astronomy & Astrophysics. 593. arXiv:1607.04351. Bibcode:2016A&A...593A.127K. doi:10.1051/0004-6361/201628631.
  27. ^ MacDonald, James; et al. (June 2018). "The Magnetic Binary GJ 65: A Test of Magnetic Diffusivity Effects". The Astrophysical Journal. 860 (1): 15. arXiv:1711.09434. Bibcode:2018ApJ...860...15M. doi:10.3847/1538-4357/aac2c0.
  28. ^ Abuter, R.; et al. (GRAVITY Collaboration) (May 2024). "Astrometric detection of a Neptune-mass candidate planet in the nearest M-dwarf binary system GJ65 with VLTI/GRAVITY". Astronomy & Astrophysics. 685: L9. arXiv:2404.08746. Bibcode:2024A&A...685L...9G. doi:10.1051/0004-6361/202449547.
Cite error: A list-defined reference named "Kervella-2022-01" is not used in the content (see the help page).
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