TOI-640 b
TOI-640 b is an exoplanet that was suspected since 2019,[1] discovery been confirmed by TESS team in January 2021. It is located 1115 light years away from Earth, orbiting primary F-class star[2] in the binary star system with red dwarf[3] and has an orbital period of 5 days.[4][5]
| Discovery | |
|---|---|
| Discovery site | Transiting Exoplanet Survey Satellite |
| Discovery date | 2021 |
| 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 | |
Mean radius | 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) |
The planet orbits its host star nearly over poles, misalignment between orbital plane and equatorial plane of the star been equal to 104±2°[2]
References
- 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
- 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, arXiv:2302.01702, doi:10.1051/0004-6361/202245301, S2CID 256537549
- 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
- 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.
- "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 22 March 2021.
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