A Look at Outbursts of Comet C/2014 UN271 (Bernardinelli–Bernstein) near 20 au

@article{Kelley2022ALA,
  title={A Look at Outbursts of Comet C/2014 UN271 (Bernardinelli–Bernstein) near 20 au},
  author={Michael S. P. Kelley and Rosita Kokotanekova and Carrie E. Holt and Silvia Protopapa and Dennis Bodewits and Matthew M. Knight and Tim A. Lister and Helen Usher and Joseph P. Chatelain and Edward Gomez and Sarah Greenstreet and Tony Angel and Ben Wooding},
  journal={The Astrophysical Journal Letters},
  year={2022},
  volume={933}
}
Cometary activity may be driven by ices with very low sublimation temperatures, such as carbon monoxide ice, which can sublimate at distances well beyond 20 au. This point is emphasized by the discovery of the Oort cloud comet C/2014 UN271 (Bernardinelli–Bernstein) and its observed activity out to ∼26 au. Through observations of this comet’s optical brightness and behavior, we can potentially discern the drivers of activity in the outer solar system. We present a study of the activity of comet… 

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