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Alexandre Simionovici
Researcher at Centre national de la recherche scientifique
Publications - 134
Citations - 5306
Alexandre Simionovici is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Cosmic dust & Ion. The author has an hindex of 34, co-authored 133 publications receiving 5011 citations. Previous affiliations of Alexandre Simionovici include Max Planck Society & European Synchrotron Radiation Facility.
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Journal ArticleDOI
Comet 81P/Wild 2 under a microscope.
Donald E. Brownlee,Peter Tsou,Jérôme Aléon,Conel M. O'd. Alexander,Tohru Araki,Saša Bajt,G. A. Baratta,Ron K. Bastien,Phil Bland,Phil Bland,Pierre Bleuet,Janet Borg,John P. Bradley,Adrian J. Brearley,Frank E. Brenker,Sean Brennan,John Bridges,Nigel D. Browning,Nigel D. Browning,John Robert Brucato,Emma S. Bullock,Mark J. Burchell,Henner Busemann,Anna L. Butterworth,Marc Chaussidon,Allan Cheuvront,Miaofang Chi,Mark J. Cintala,Benton C. Clark,Simon J. Clemett,George D. Cody,Luigi Colangeli,George Cooper,Patrick Cordier,Charles P. Daghlian,Zu Rong Dai,Louis Le Sergeant d'Hendecourt,Zahia Djouadi,Gerardo Dominguez,Tom Duxbury,Jason P. Dworkin,Denton S. Ebel,Thanasis E. Economou,Sirine C. Fakra,Sam A. J. Fairey,Stewart Fallon,G. Ferrini,T. Ferroir,Holger Fleckenstein,Christine Floss,George J. Flynn,Ian A. Franchi,Marc Fries,Zack Gainsforth,J-P Gallien,M. J. Genge,Mary K. Gilles,Philipe Gillet,Jamie Gilmour,Daniel P. Glavin,Matthieu Gounelle,Monica M. Grady,Giles A. Graham,Patrick G. Grant,Simon F. Green,F. Grossemy,Lawrence Grossman,Jeffrey N. Grossman,Yunbin Guan,Kenji Hagiya,Ralph P. Harvey,Philipp R. Heck,Gregory F. Herzog,Peter Hoppe,Friedrich Hörz,Joachim Huth,Ian D. Hutcheon,Konstantin Ignatyev,Hope A. Ishii,Motoo Ito,Damien Jacob,Chris Jacobsen,Stein B. Jacobsen,Steven Jones,David J. Joswiak,A. J. G. Jurewicz,Anton T. Kearsley,Lindsay P. Keller,H Khodja,A. L. David Kilcoyne,Jochen Kissel,Alexander N. Krot,Falko Langenhorst,Antonio Lanzirotti,Loan Le,Laurie A. Leshin,Jan Leitner,Laurence Lemelle,Hugues Leroux,Ming-Chang Liu,K. Luening,Ian C. Lyon,G. J. MacPherson,Matthew A. Marcus,Kuljeet K. Marhas,Bernard Marty,Graciela Matrajt,Kevin D. McKeegan,Anders Meibom,Vito Mennella,Keiko Messenger,Scott Messenger,Takashi Mikouchi,Smail Mostefaoui,Tomoki Nakamura,T Nakano,Matthew Newville,Larry R. Nittler,Ichiro Ohnishi,Kazumasa Ohsumi,Kyoko Okudaira,D. A. Papanastassiou,Russ Palma,Russ Palma,Maria Elisabetta Palumbo,Robert O. Pepin,David Perkins,Murielle C. Perronnet,Piero Pianetta,William Rao,Frans J. M. Rietmeijer,François Robert,Detlef Rost,Alessandra Rotundi,R. E. Ryan,Scott A. Sandford,Craig S. Schwandt,Thomas H. See,D. J. Schlutter,J. Sheffield-Parker,Alexandre Simionovici,Steven B. Simon,I Sitnitsky,Christopher J. Snead,Maegan K. Spencer,Frank J. Stadermann,Andrew Steele,Thomas Stephan,Rhonda M. Stroud,Jean Susini,Stephen R. Sutton,Y Suzuki,Mitra L. Taheri,Susan Taylor,Nick Teslich,Kazu Tomeoka,Naotaka Tomioka,Alice Toppani,Josep M. Trigo-Rodríguez,David Troadec,Akira Tsuchiyama,Anthony J. Tuzzolino,Tolek Tyliszczak,Kentaro Uesugi,Michael A. Velbel,Joe Vellenga,Edward P. Vicenzi,Laszlo Vincze,J. Warren,Iris Weber,M. K. Weisberg,Andrew J. Westphal,Sue Wirick,Diane H. Wooden,Brigitte Wopenka,Penelope J. Wozniakiewicz,Ian Wright,Hikaru Yabuta,Hajime Yano,Edward D. Young,Richard N. Zare,Thomas J. Zega,Karen Ziegler,Laurent Zimmerman,Ernst Zinner,Michael E. Zolensky +185 more
TL;DR: The Stardust spacecraft collected thousands of particles from comet 81P/Wild 2 and returned them to Earth for laboratory study, and preliminary examination shows that the nonvolatile portion of the comet is an unequilibrated assortment of materials that have both presolar and solar system origin.
Journal ArticleDOI
Mineralogy and petrology of comet 81P/wild 2 nucleus samples
Michael E. Zolensky,Thomas J. Zega,Hajime Yano,Sue Wirick,Andrew J. Westphal,M. K. Weisberg,Iris Weber,J. Warren,Michael A. Velbel,Akira Tsuchiyama,Peter Tsou,Alice Toppani,Naotaka Tomioka,Kazushige Tomeoka,Nick Teslich,Mitra L. Taheri,Jean Susini,Rhonda M. Stroud,Thomas Stephan,Frank J. Stadermann,Christopher J. Snead,Steven B. Simon,Alexandre Simionovici,Thomas H. See,François Robert,Frans J. M. Rietmeijer,William Rao,Murielle C. Perronnet,D. A. Papanastassiou,Kyoko Okudaira,Kazumasa Ohsumi,Ichiro Ohnishi,Keiko Nakamura-Messenger,Tomoki Nakamura,Smail Mostefaoui,Takashi Mikouchi,Anders Meibom,Graciela Matrajt,Matthew A. Marcus,Hugues Leroux,Laurence Lemelle,Loan Le,Antonio Lanzirotti,Falko Langenhorst,Alexander N. Krot,Lindsay P. Keller,Anton T. Kearsley,David J. Joswiak,Damien Jacob,Hope A. Ishii,Ralph P. Harvey,Kenji Hagiya,Lawrence Grossman,Jeffrey N. Grossman,Giles A. Graham,Matthieu Gounelle,Philippe Gillet,Matthew J. Genge,George J. Flynn,T. Ferroir,Stewart Fallon,Denton S. Ebel,Zu Rong Dai,Patrick Cordier,Benton C. Clark,Miaofang Chi,Anna L. Butterworth,Donald E. Brownlee,John Bridges,Sean Brennan,Adrian J. Brearley,John P. Bradley,Pierre Bleuet,Phil Bland,Phil Bland,Ron K. Bastien +75 more
TL;DR: The bulk of the comet 81P/Wild 2 samples returned to Earth by the Stardust spacecraft appear to be weakly constructed mixtures of nanometer-scale grains, with occasional much larger ferromagnesian silicates, Fe-Ni sulfides,Fe-Ni metal, and accessory phases.
Journal ArticleDOI
Elemental Compositions of Comet 81P/Wild 2 Samples Collected by Stardust
George J. Flynn,Pierre Bleuet,Janet Borg,John P. Bradley,Frank E. Brenker,Sean Brennan,John Bridges,Donald E. Brownlee,Emma S. Bullock,Manfred Burghammer,Benton C. Clark,Zu Rong Dai,Charles P. Daghlian,Zahia Djouadi,Sirine C. Fakra,T. Ferroir,Christine Floss,Ian A. Franchi,Zack Gainsforth,Jean-Paul Gallien,Philippe Gillet,Patrick G. Grant,Giles A. Graham,Simon F. Green,F. Grossemy,Philipp R. Heck,Gregory F. Herzog,Peter Hoppe,Friedrich Hörz,Joachim Huth,Konstantin Ignatyev,Hope A. Ishii,Koen Janssens,David J. Joswiak,Anton T. Kearsley,Hicham Khodja,Antonio Lanzirotti,Jan Leitner,Laurence Lemelle,Hugues Leroux,K. Luening,Glenn J. MacPherson,Kuljeet K. Marhas,Matthew A. Marcus,Graciela Matrajt,Tomoki Nakamura,Keiko Nakamura-Messenger,Tsukasa Nakano,Matthew Newville,D. A. Papanastassiou,Piero Pianetta,William Rao,Christian Riekel,Frans J. M. Rietmeijer,Detlef Rost,Craig S. Schwandt,Thomas H. See,Julie Sheffield-Parker,Alexandre Simionovici,Ilona Sitnitsky,Christopher J. Snead,Frank J. Stadermann,Thomas Stephan,Rhonda M. Stroud,Jean Susini,Yoshio Suzuki,Stephen R. Sutton,Susan Taylor,Nick Teslich,David Troadec,Peter Tsou,Akira Tsuchiyama,Kentaro Uesugi,Bart Vekemans,Edward P. Vicenzi,Laszlo Vincze,Andrew J. Westphal,Penelope J. Wozniakiewicz,Ernst Zinner,Michael E. Zolensky +79 more
TL;DR: The elements Cu, Zn, and Ga appear enriched in this Wild 2 material, which suggests that the CI meteorites may not represent the solar system composition for these moderately volatile minor elements.
Journal ArticleDOI
Use of microscopic XRF for non‐destructive analysis in art and archaeometry
Koen Janssens,G. Vittiglio,I. Deraedt,A. Aerts,Bart Vekemans,Laszlo Vincze,F. Wei,I. De Ryck,O. Schalm,Freddy Adams,A. Rindby,Arndt Knöchel,Alexandre Simionovici,Anatoly Snigirev +13 more
TL;DR: In this article, various application possibilities of microscopic x-ray fluorescence and associated methods for the characterization and provenance analysis of objects and materials of cultural heritage value are discussed by means of a number of case studies.
Journal ArticleDOI
Evidence for interstellar origin of seven dust particles collected by the Stardust spacecraft
Andrew J. Westphal,Rhonda M. Stroud,Hans A. Bechtel,Frank E. Brenker,Anna L. Butterworth,George J. Flynn,D. Frank,Zack Gainsforth,Jon K. Hillier,Frank Postberg,Alexandre Simionovici,Veerle Sterken,Larry R. Nittler,Carlton Allen,Dustin Anderson,Asna Ansari,Saša Bajt,Ron K. Bastien,Nabil Bassim,John Bridges,Donald E. Brownlee,Mark J. Burchell,Manfred Burghammer,Hitesh Changela,Peter Cloetens,Andrew M. Davis,Ryan Doll,Christine Floss,Eberhard Grün,Philipp R. Heck,Peter Hoppe,Bruce Hudson,Joachim Huth,Anton T. Kearsley,Ashley J. King,Barry Lai,Jan Leitner,Laurence Lemelle,Ariel Leonard,Hugues Leroux,R. Lettieri,William Marchant,Ryan C. Ogliore,Wei Jia Ong,Mark C. Price,Scott A. Sandford,Juan-Angel Sans Tresseras,Sylvia Schmitz,Tom Schoonjans,Kate Schreiber,Geert Silversmit,Vicente A. Solé,Ralf Srama,Frank J. Stadermann,Thomas Stephan,Julien Stodolna,Stephen R. Sutton,Mario Trieloff,Peter Tsou,Tolek Tyliszczak,Bart Vekemans,Laszlo Vincze,Joshua Von Korff,Naomi Wordsworth,Daniel Zevin,Michael E. Zolensky +65 more
TL;DR: The Stardust Interstellar Dust Collector captured seven particles and returned to Earth for laboratory analysis have features consistent with an origin in the contemporary interstellar dust stream and more than 50 spacecraft debris particles were also identified as discussed by the authors.