W
Wolfram Thiemann
Researcher at University of Bremen
Publications - 89
Citations - 3070
Wolfram Thiemann is an academic researcher from University of Bremen. The author has contributed to research in topics: Homochirality & Interstellar ice. The author has an hindex of 26, co-authored 87 publications receiving 2841 citations. Previous affiliations of Wolfram Thiemann include Chinese Academy of Sciences.
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Journal ArticleDOI
Amino acids from ultraviolet irradiation of interstellar ice analogues.
G. M. Muñoz Caro,Uwe J. Meierhenrich,W. A. Schutte,Bernard Barbier,A. Arcones Segovia,H. Rosenbauer,Wolfram Thiemann,A. Brack,J.M. Greenberg +8 more
TL;DR: The results demonstrate that the spontaneous generation of amino acids in the interstellar medium is possible, supporting the suggestion that prebiotic molecules could have been delivered to the early Earth by cometary dust, meteorites or interplanetary dust particles.
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Organic compounds on comet 67P/Churyumov-Gerasimenko revealed by COSAC mass spectrometry
Fred Goesmann,H. Rosenbauer,Jan Hendrik Bredehöft,Michel Cabane,Pascale Ehrenfreund,Thomas Gautier,Chaitanya Giri,Chaitanya Giri,Harald Krüger,Léna Le Roy,A. J. MacDermott,Susan McKenna-Lawlor,Uwe J. Meierhenrich,Guillermo M. Muñoz Caro,François Raulin,Reinhard Roll,Andrew Steele,Harald Steininger,Robert Sternberg,Cyril Szopa,Wolfram Thiemann,Stephan Ulamec +21 more
TL;DR: The evolved gas analyzer Cometary Sampling and Composition experiment aboard Rosetta’s Philae lander was designed for in situ analysis of organic molecules on comet 67P/Churyumov-Gerasimenko, and displayed a suite of 16 organic compounds that had not previously been reported in comets.
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Identification of diamino acids in the Murchison meteorite
Uwe J. Meierhenrich,Guillermo M. Muñoz Caro,Jan Hendrik Bredehöft,Elmar K. Jessberger,Wolfram Thiemann +4 more
TL;DR: The results obtained in this study favor the assumption that not only amino acids (as the required monomers of proteins) form in interstellar/circumstellar environments, but also the family of diamino monocarboxylic acids, which might have been relevant in prebiotic chemistry.
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Cosac, The Cometary Sampling and Composition Experiment on Philae
Fred Goesmann,H. Rosenbauer,Reinhard Roll,Cyril Szopa,François Raulin,Robert Sternberg,G. Israel,Uwe J. Meierhenrich,Wolfram Thiemann,G. Muñoz-Caro +9 more
TL;DR: In this article, the COSAC instrument, part of the ESA cometary mission Rosetta, was designed to characterize, identify, and quantify volatile cometary compounds, including larger organic molecules, by in situ measurements of surface and subsurface cometary samples.
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Contamination by selected chlorinated pesticides in surface waters in Hanoi, Vietnam.
Dang Quang Hung,Wolfram Thiemann +1 more
TL;DR: The results showed that the contamination of the banned pesticides was highest in the rivers and then in the irrigation canals, followed by the lakes and wells, and the highest concentration of DDTs detected in a river sample was much lower than their allowable limit of concentration in surface waters.