OGLE-2019-BLG-0960Lb
Appearance
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Discovery[1] | |
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Discovered by | Jennifer C. Yee, et al. |
Discovery site | OGLE |
Discovery date | January 2021 |
Microlensing | |
Orbital characteristics[1] | |
1.45±0.28—1.90±0.43 AU[note 1] | |
Star | OGLE-2019-BLG-0960L |
Physical characteristics[1] | |
Mass | 1.8±0.4—2.5±0.6 M🜨[note 1] |
OGLE-2019-BLG-0960Lb is an exoplanet that was discovered in January 2021 by gravitational microlensing. It is approximately twice the mass of Earth, making it a super-Earth. At the time of discovery, it was the lowest mass-ratio planet to be detected via microlensing; that is, the least massive planet relative to the mass of its host star.[1] Its host star, OGLE-2019-BLG-0960L, has an mass between 0.3 and 0.6 M☉.[1]
References
[edit]- ^ a b c d e Yee, Jennifer C.; Zang, Weicheng; Udalski, Andrzej; Ryu, Yoon-Hyun; Green, Jonathan; Hennerley, Steve; Marmont, Andrew; Sumi, Takahiro; Mao, Shude; Gromadzki, Mariusz; Mróz, Przemek (2021-01-12). "OGLE-2019-BLG-0960 Lb: The Smallest Microlensing Planet". The Astronomical Journal. 162 (5): 180. arXiv:2101.04696. Bibcode:2021AJ....162..180Y. doi:10.3847/1538-3881/ac1582. S2CID 231592669.