Water Production Rates and Activity of Interstellar Comet 2I/Borisov

  title={Water Production Rates and Activity of Interstellar Comet 2I/Borisov},
  author={Zexi Xing and Dennis Bodewits and John W. Noonan and Michele T. Bannister},
  journal={arXiv: Earth and Planetary Astrophysics},
We observed the interstellar comet 2I/Borisov using the Neil Gehrels-Swift Observatory's Ultraviolet/Optical Telescope. We obtained images of the OH gas and dust surrounding the nucleus at six epochs spaced before and after perihelion (-2.56 AU to 2.54 AU). Water production rates increased steadily before perihelion from $(7.0\pm1.5)\times10^{26}$ molecules s$^{-1}$ on Nov. 1, 2019 to $(10.7\pm1.2)\times10^{26}$ molecules s$^{-1}$ on Dec. 1. This rate of increase in water production rate is… 

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