The carbon monoxide-rich interstellar comet 2I/Borisov

  title={The carbon monoxide-rich interstellar comet 2I/Borisov},
  author={Dennis Bodewits and John W. Noonan and Paul D. Feldman and Michele T. Bannister and Davide Farnocchia and Walter M. Harris and J.-Y. Li and Kathleen E. Mandt and Joel Wm. Parker and Zexi Xing},
  journal={Nature Astronomy},
Interstellar comets offer direct samples of volatiles from distant protoplanetary disks. 2I/Borisov is the first notably active interstellar comet discovered in our Solar System 1 . Comets are condensed samples of the gas, ice and dust that were in a star’s protoplanetary disk during the formation of its planets, and inform our understanding on how chemical compositions and abundances vary with distance from the central star. Their orbital migration distributes volatiles 2 , organic material… 

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