S
Sandra Siljeström
Researcher at Research Institutes of Sweden
Publications - 67
Citations - 2060
Sandra Siljeström is an academic researcher from Research Institutes of Sweden. The author has contributed to research in topics: Mars Exploration Program & Comet. The author has an hindex of 23, co-authored 50 publications receiving 1549 citations. Previous affiliations of Sandra Siljeström include Carnegie Institution for Science & Stockholm University.
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Journal ArticleDOI
A Reduced Organic Carbon Component in Martian Basalts
Andrew Steele,Francis M. McCubbin,Francis M. McCubbin,Marc Fries,L. Kater,Nabil Z. Boctor,Marilyn L. Fogel,Pamela G. Conrad,Mihaela Glamoclija,Maegan K. Spencer,Amy L. Morrow,Matthew R. Hammond,Richard N. Zare,Edward P. Vicenzi,Sandra Siljeström,Sandra Siljeström,R. Bowden,Christopher D. K. Herd,Bjorn O. Mysen,Steven B. Shirey,Hans E. F. Amundsen,Allan H. Treiman,Emma S. Bullock,A. J. T. Jull +23 more
TL;DR: In this paper, the results of confocal Raman imaging spectroscopy on 11 martian meteorites, spanning about 4.2 billion years of martian history, were reported.
Journal ArticleDOI
The Mars Organic Molecule Analyzer (MOMA) Instrument: Characterization of Organic Material in Martian Sediments
Fred Goesmann,William B. Brinckerhoff,François Raulin,Walter Goetz,Ryan M. Danell,Stephanie Getty,Sandra Siljeström,Helge Mißbach,Harald Steininger,Ricardo Arevalo,Arnaud Buch,Caroline Freissinet,Andrej Grubisic,Andrej Grubisic,Uwe J. Meierhenrich,Veronica Pinnick,Fabien Stalport,Cyril Szopa,Jorge L. Vago,Robert Lindner,Mitchell D. Schulte,John Robert Brucato,Daniel P. Glavin,Noël Grand,Xiang Li,Xiang Li,Friso H. W. van Amerom +26 more
TL;DR: The Mars Organic Molecule Analyzer instrument onboard the ESA/Roscosmos ExoMars rover (to launch in July, 2020) will analyze volatile and refractory organic compounds in martian surface and subsurface sediments.
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Comet 67P/Churyumov-Gerasimenko sheds dust coat accumulated over the past four years
Rita Schulz,Martin Hilchenbach,Yves Langevin,Jochen Kissel,Johan Silen,Christelle Briois,Cécile Engrand,Klaus Hornung,Donia Baklouti,Anais Bardyn,Anais Bardyn,Hervé Cottin,Henning Fischer,Nicolas Fray,M. Godard,Harry Lehto,Léna Le Roy,Sihane Merouane,François-Régis Orthous-Daunay,John Paquette,Jouni Rynö,Sandra Siljeström,Oliver Stenzel,Laurent Thirkell,Kurt Varmuza,B. Zaprudin +25 more
TL;DR: It is reported that grains collected from the Jupiter-family comet 67P/Churyumov-Gerasimenko come from a dusty crust that quenches the material outflow activity at the comet surface, arguing against comet dust being composed of a silicate core mantled by organic refractory material and then by a mixture of water-dominated ices.
Journal ArticleDOI
High-molecular-weight organic matter in the particles of comet 67P/Churyumov–Gerasimenko
Nicolas Fray,Anais Bardyn,Hervé Cottin,Kathrin Altwegg,Donia Baklouti,Christelle Briois,Luigi Colangeli,Cécile Engrand,Henning Fischer,Albrecht Glasmachers,Eberhard Grün,Gerhard Haerendel,H. Henkel,H. Höfner,Klaus Hornung,Elmar K. Jessberger,Andreas Koch,Harald Krüger,Yves Langevin,Harry Lehto,Kirsi Lehto,Léna Le Roy,Sihane Merouane,Paola Modica,François-Régis Orthous-Daunay,John Paquette,François Raulin,Jouni Rynö,Rita Schulz,Johan Silen,Sandra Siljeström,W. Steiger,Oliver Stenzel,Thomas Stephan,Laurent Thirkell,R. Thomas,Klaus Torkar,Kurt Varmuza,Karl-Peter Wanczek,B. Zaprudin,Jochen Kissel,Martin Hilchenbach +41 more
TL;DR: It is concluded that the observed cometary carbonaceous solid matter could have the same origin as the meteoritic insoluble organic matter, but suffered less modification before and/or after being incorporated into the comet.
Journal ArticleDOI
Comet 67p/churyumov–gerasimenko: close-up on dust particle fragments
Martin Hilchenbach,Jochen Kissel,Yves Langevin,Christelle Briois,H. von Hoerner,A. Koch,Rita Schulz,Johan Silen,Kathrin Altwegg,Luigi Colangeli,Hervé Cottin,Cécile Engrand,Henning Fischer,Albrecht Glasmachers,Eberhard Grün,Gerhard Haerendel,H. Henkel,H. Höfner,Klaus Hornung,Elmar K. Jessberger,Harry Lehto,Kirsi Lehto,François Raulin,Léna Le Roy,Jouni Rynö,W. Steiger,Thomas Stephan,Laurent Thirkell,R. Thomas,Klaus Torkar,Kurt Varmuza,K.-P. Wanczek,Nicolas Altobelli,Donia Baklouti,Anais Bardyn,Anais Bardyn,Nicolas Fray,Harald Krüger,N. Ligier,Zhong-Yi Lin,P. Martin,Sihane Merouane,François-Régis Orthous-Daunay,John Paquette,C. Revillet,Sandra Siljeström,Oliver Stenzel,B. Zaprudin +47 more
TL;DR: The COmetary Secondary Ion Mass Analyser instrument on board ESA's Rosetta mission has collected dust particles in the coma of comet 67P/Churyumov-Gerasimenko.