20
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: not found
      • Article: not found

      Cometary Isotopic Measurements

      Read this article at

      ScienceOpenPublisher
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Related collections

          Most cited references169

          • Record: found
          • Abstract: found
          • Article: found

          Complex Organic Interstellar Molecules

          Of the over 150 different molecular species detected in the interstellar and circumstellar media, approximately 50 contain 6 or more atoms. These molecules, labeled complex by astronomers if not by chemists, all contain the element carbon and so can be called organic. In the interstellar medium, complex molecules are detected in the denser sources only. Although, with one exception, complex molecules have only been detected in the gas phase, there is strong evidence that they can be formed in ice mantles on interstellar grains. The nature of the gaseous complex species depends dramatically on the source where they are found: in cold, dense regions they tend to be unsaturated (hydrogen-poor) and exotic, whereas in young stellar objects, they tend to be quite saturated (hydrogen-rich) and terrestrial in nature. Based on both their spectra and chemistry, complex molecules are excellent probes of the physical conditions and history of the sources where they reside. Because they are detected in young stellar objects, complex molecules are expected to be common ingredients for new planetary systems. In this review, we discuss both the observation and chemistry of complex molecules in assorted interstellar regions in the Milky Way.
            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Liquid water on Enceladus from observations of ammonia and 40Ar in the plume

              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              The12C/13C Isotope Gradient Derived from Millimeter Transitions of CN: The Case for Galactic Chemical Evolution

                Bookmark

                Author and article information

                Journal
                Space Science Reviews
                Space Sci Rev
                Springer Nature
                0038-6308
                1572-9672
                December 2015
                May 16 2015
                : 197
                : 1-4
                : 47-83
                Article
                10.1007/s11214-015-0156-9
                c5fff80f-09ba-41c7-ab39-c647facaca79
                © 2015
                History

                Comments

                Comment on this article