Cometary Isotopic Measurements

  title={Cometary Isotopic Measurements},
  author={D. Bockel{\'e}e-Morvan and U. Calmonte and S. Charnley and J. Duprat and C. Engrand and A. Gicquel and M. H{\"a}ssig and E. Jehin and H. Kawakita and B. Marty and S. Milam and A. Morse and P. Rousselot and S. Sheridan and E. Wirstr{\"o}m},
  journal={Space Science Reviews},
Isotopic ratios in comets provide keys for the understanding of the origin of cometary material, and the physical and chemical conditions in the early Solar Nebula. We review here measurements acquired on the D/H, 14N/15N, 16O/18O, 12C/13C, and 32S/34S ratios in cometary grains and gases, and discuss their cosmogonic implications. The review includes analyses of potential cometary material available in collections on Earth, recent measurements achieved with the Herschel Space Observatory, large… Expand

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