TOI-640 b

Last updated
TOI-640 b
Discovery
Discovery site Transiting Exoplanet Survey Satellite
Discovery date2021
Transit
Orbital characteristics
0.06608+0.00098
−0.0011 AU
Eccentricity 0.050+0.054
−0.035
5.0037775±0.0000048 d
Inclination 82.54+0.42
−0.59 °
Physical characteristics
1.72±0.05 RJ
Mass 0.57±0.05 MJ
Mean density
0.138±0.013 g/cm³
Temperature 1,816 K (1,543 °C)

    TOI-640 b is an exoplanet that was suspected since 2019. [1] Its discovery has been confirmed by the TESS team in January 2021. It is located 1115 light years away from Earth, orbiting a primary F-class star [2] in a binary star system with red dwarf [3] and has an orbital period of 5 days. [4] [5]

    The planet orbits its host star nearly over poles, misalignment between the orbital plane and equatorial plane of the star been equal to 104±2° [2]

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    References

    1. ↑ Yu, Liang; Vanderburg, Andrew; Huang, Chelsea; Shallue, Christopher J.; Crossfield, Ian J. M.; Gaudi, B. Scott; Daylan, Tansu; Dattilo, Anne; Armstrong, David J.; Ricker, George R.; Vanderspek, Roland K.; Latham, David W.; Seager, Sara; Dittmann, Jason; Doty, John P.; Glidden, Ana; Quinn, Samuel N. (2019), "Identifying Exoplanets with Deep Learning. III. Automated Triage and Vetting of TESS Candidates", The Astronomical Journal, 158 (1): 25, arXiv: 1904.02726 , Bibcode:2019AJ....158...25Y, doi: 10.3847/1538-3881/ab21d6 , S2CID   102351917
    2. 1 2 Knudstrup, E.; Albrecht, S. H.; Gandolfi, D.; Marcussen, M. L.; Goffo, E.; Serrano, L. M.; Dai, F.; Redfield, S.; Hirano, T.; Csizmadia, Sz.; Deeg, H. J.; Fridlund, M.; Lam, K. W. F.; Livingston, J. H.; Luque, R.; Narita, N.; Palle, E.; Persson, C. M.; Van Eylen, V.; Vincent Van Eylen (2023), "A puffy polar planet. The low density, hot Jupiter TOI-640 b is on a polar orbit", Astronomy & Astrophysics, 671, arXiv: 2302.01702 , Bibcode:2023A&A...671A.164K, doi:10.1051/0004-6361/202245301, S2CID   256537549
    3. ↑ Lester, Kathryn V.; Howell, Steve B.; Ciardi, David R.; Matson, Rachel A. (2022), "Determining Which Binary Component Hosts the TESS Transiting Planet", The Astronomical Journal, 164 (2): 56, arXiv: 2206.02825 , Bibcode:2022AJ....164...56L, doi: 10.3847/1538-3881/ac75ee , S2CID   249431677
    4. ↑ Rodriguez, Joseph E.; et al. (9 February 2021). "TESS Delivers Five New Hot Giant Planets Orbiting Bright Stars from the Full-frame Images". The Astronomical Journal. 161 (4): 194. arXiv: 2101.01726 . Bibcode:2021AJ....161..194R. doi: 10.3847/1538-3881/abe38a . S2CID   230770138.
    5. ↑ "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 22 March 2021.
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