caa a22 4500 469128313 CHVBK 20180323133156.0 cr unu---uuuuu 170328e19920901xx s 000 0 eng 10.1007/BF01810858 doi (NATIONALLICENCE)springer-10.1007/BF01810858 Comet Halley as an aggregate of interstellar dust and further evidence for the photochemical formation of organics in the interstellar medium [Elektronische Daten] [R. Briggs, G. Ertem, J. Ferris, J. Greenberg, P. McCain, C. Mendoza-Gomez, W. Schutte] Photolysis of mixtures of CO:NH3:H2O at 12 K results in the formation of an organic residue which is not volatile in high vacuum at room temperature. Analysis of this fraction by GC-MS resulted in the detection of C2-C3 hydroxy acids and hydroxy amides, glycerol, urea, glycine, hexamethylene tetramine, formamidine and ethanolamine. Use of isotopically labeled gases made it possible to establish that the observed products were not contaminants. The reaction pathways for the formation of these products were determined from the position of the isotopic labels in the mass spectral fragments. The significance of these findings to the composition of comets and the origins of life is discussed. Kluwer Academic Publishers, 1992 Briggs R. Center for Laboratories and Research, N.Y. State Department of Health, Empire State Plaza, 12201, Albany, NY, USA aut Ertem G. Department of Chemistry, Rensselaer Polytechnic Institute, 12180-3590, Troy, NY, USA aut Ferris J. Department of Chemistry, Rensselaer Polytechnic Institute, 12180-3590, Troy, NY, USA aut Greenberg J. Laboratory of Astrophysics, Huygens Laboratory, University of Leiden, P.O. 9504, 2300 RA, Leiden, Holland aut McCain P. Department of Chemistry, Rensselaer Polytechnic Institute, 12180-3590, Troy, NY, USA aut Mendoza-Gomez C. Laboratory of Astrophysics, Huygens Laboratory, University of Leiden, P.O. 9504, 2300 RA, Leiden, Holland aut Schutte W. Laboratory of Astrophysics, Huygens Laboratory, University of Leiden, P.O. 9504, 2300 RA, Leiden, Holland aut Origins of life and evolution of the biosphere Kluwer Academic Publishers 22/5(1992-09-01), 287-307 0169-6149 22:5<287 1992 22 11084 https://doi.org/10.1007/BF01810858 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01810858 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Briggs R. Center for Laboratories and Research, N.Y. State Department of Health, Empire State Plaza, 12201, Albany, NY, USA aut NATIONALLICENCE 700 1- Ertem G. Department of Chemistry, Rensselaer Polytechnic Institute, 12180-3590, Troy, NY, USA aut NATIONALLICENCE 700 1- Ferris J. Department of Chemistry, Rensselaer Polytechnic Institute, 12180-3590, Troy, NY, USA aut NATIONALLICENCE 700 1- Greenberg J. Laboratory of Astrophysics, Huygens Laboratory, University of Leiden, P.O. 9504, 2300 RA, Leiden, Holland aut NATIONALLICENCE 700 1- McCain P. Department of Chemistry, Rensselaer Polytechnic Institute, 12180-3590, Troy, NY, USA aut NATIONALLICENCE 700 1- Mendoza-Gomez C. Laboratory of Astrophysics, Huygens Laboratory, University of Leiden, P.O. 9504, 2300 RA, Leiden, Holland aut NATIONALLICENCE 700 1- Schutte W. Laboratory of Astrophysics, Huygens Laboratory, University of Leiden, P.O. 9504, 2300 RA, Leiden, Holland aut NATIONALLICENCE 773 0- Origins of life and evolution of the biosphere Kluwer Academic Publishers 22/5(1992-09-01), 287-307 0169-6149 22:5<287 1992 22 11084 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer