Unusually high CO abundance of the first active interstellar comet

  title={Unusually high CO abundance of the first active interstellar comet},
  author={Martin A. Cordiner and Stefanie N. Milam and Nicolas Biver and Dominique Bockel'ee-Morvan and Nathaniel Xavier Roth and Edwin A. Bergin and Emmanuel Jehin and Anthony J. Remijan and Steven B. Charnley and Michael J. Mumma and J. Boissier and Jacques Crovisier and Lucas Paganini and Yi-Jehng Kuan and D. C. Lis},
  journal={Nature Astronomy},
Comets spend most of their lives at large distances from any star, during which time their interior compositions remain relatively unaltered. Cometary observations can therefore provide direct insight into the chemistry that occurred during their birth at the time of planet formation 1 . To date, there have been no confirmed observations of parent volatiles (gases released directly from the nucleus) of a comet from any planetary system other than our own. Here, we present high-resolution… 

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