| Literature DB >> 26228156 |
Fred Goesmann1, Helmut Rosenbauer2, Jan Hendrik Bredehöft3, Michel Cabane4, Pascale Ehrenfreund5, Thomas Gautier6, Chaitanya Giri7, Harald Krüger2, Léna Le Roy8, Alexandra J MacDermott9, Susan McKenna-Lawlor10, Uwe J Meierhenrich11, Guillermo M Muñoz Caro12, Francois Raulin13, Reinhard Roll2, Andrew Steele14, Harald Steininger2, Robert Sternberg13, Cyril Szopa4, Wolfram Thiemann3, Stephan Ulamec15.
Abstract
Comets harbor the most pristine material in our solar system in the form of ice, dust, silicates, and refractory organic material with some interstellar heritage. The evolved gas analyzer Cometary Sampling and Composition (COSAC) experiment aboard Rosetta's Philae lander was designed for in situ analysis of organic molecules on comet 67P/Churyumov-Gerasimenko. Twenty-five minutes after Philae's initial comet touchdown, the COSAC mass spectrometer took a spectrum in sniffing mode, which displayed a suite of 16 organic compounds, including many nitrogen-bearing species but no sulfur-bearing species, and four compounds—methyl isocyanate, acetone, propionaldehyde, and acetamide—that had not previously been reported in comets.Entities:
Year: 2015 PMID： 26228156 DOI： 10.1126/science.aab0689
Source DB: PubMed Journal: Science ISSN： 0036-8075 Impact factor: 47.728