OGLE-2019-BLG-0960Lb

OGLE-2019-BLG-0960Lb
Discovery[1]
Discovered byJennifer C. Yee, et al.
Discovery siteOGLE
Discovery dateJanuary 2021
Microlensing
Orbital characteristics[1]
1.45±0.28—1.90±0.43 AU[note 1]
StarOGLE-2019-BLG-0960L
Physical characteristics[1]
Mass1.8±0.4—2.5±0.6 M🜨[note 1]
  1. ^ a b Multiple models in Table 4; low and high values quoted here.

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

  1. ^ 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.


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