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Andrew W. Beck
Researcher at Johns Hopkins University Applied Physics Laboratory
Publications - 48
Citations - 2061
Andrew W. Beck is an academic researcher from Johns Hopkins University Applied Physics Laboratory. The author has contributed to research in topics: Diogenite & Howardite. The author has an hindex of 18, co-authored 46 publications receiving 1792 citations. Previous affiliations of Andrew W. Beck include Marietta College & University of Tennessee.
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HED Meteorites and Their Relationship to the Geology of Vesta and the Dawn Mission
TL;DR: Howardite-eucrite-diogenite (HED) meteorites as discussed by the authors provide the best sampling available for any differentiated asteroid and provide insights into igneous processes that produced a crust composed of basalts, gabbros, and ultramafic cumulate rocks.
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Elemental mapping by Dawn reveals exogenic H in Vesta's regolith.
Thomas H. Prettyman,David W. Mittlefehldt,Naoyuki Yamashita,David J. Lawrence,Andrew W. Beck,W. C. Feldman,Timothy J. McCoy,Harry Y. McSween,Michael J. Toplis,Timothy N. Titus,Pasquale Tricarico,Robert C. Reedy,John S. Hendricks,Olivier Forni,L. Le Corre,Jian-Yang Li,H. Mizzon,Vishnu Reddy,Carol A. Raymond,Christopher T. Russell +19 more
TL;DR: Analysis of data from the Dawn spacecraft implies that asteroid Vesta is rich in volatiles, and models of Vesta’s evolution based on studies of howardite, eucrite, and diogenite meteorites are tested, finding that global Fe/O and Fe/Si ratios are consistent with HED compositions.
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Color and Albedo Heterogeneity of Vesta from Dawn
Vishnu Reddy,Andreas Nathues,L. Le Corre,Holger Sierks,Jian-Yang Li,Robert Gaskell,Timothy J. McCoy,Andrew W. Beck,Stefan Schröder,Carle M. Pieters,Kris J. Becker,Bonnie J. Buratti,Brett W. Denevi,David T. Blewett,Ulrich R. Christensen,Michael J. Gaffey,P. Gutierrez-Marques,Michael D. Hicks,Horst Uwe Keller,Thorsten Maue,Stefano Mottola,Lucy A. McFadden,Harry Y. McSween,David W. Mittlefehldt,David P. O'Brien,Carol A. Raymond,Christopher T. Russell +26 more
TL;DR: Dawn's observations confirm that Vesta is a small differentiated planetary body with an inner core, and represents a surviving proto-planet from the earliest epoch of solar system formation, and reveal its color and photometric diversity are indicative of its status as a preserved, differentiated protoplanet.
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Dawn; the Vesta–HED connection; and the geologic context for eucrites, diogenites, and howardites
Harry Y. McSween,Richard P. Binzel,M. Cristina De Sanctis,Eleonora Ammannito,Thomas H. Prettyman,Andrew W. Beck,Vishnu Reddy,L. Le Corre,Michael J. Gaffey,Thomas B. McCord,Carol A. Raymond,Christopher T. Russell +11 more
TL;DR: The Dawn mission has provided new evidence strengthening the identification of asteroid Vesta as the parent body of the howardite, eucrite, and diogenite (HED) meteorites as discussed by the authors.
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Delivery of dark material to Vesta via carbonaceous chondritic impacts
Vishnu Reddy,L. Le Corre,David P. O'Brien,Andreas Nathues,Edward A. Cloutis,Daniel D. Durda,William F. Bottke,Megha Bhatt,David Nesvorny,Debra Buczkowski,Jennifer E.C. Scully,Elizabeth M. Palmer,Holger Sierks,Paul Mann,Kris J. Becker,Andrew W. Beck,David W. Mittlefehldt,Jian-Yang Li,Robert Gaskell,Christopher T. Russell,Michael J. Gaffey,Harry Y. McSween,Thomas B. McCord,Jean-Philippe Combe,David T. Blewett +24 more
TL;DR: In this article, the authors reported that the majority of the spectra of DM are similar to carbonaceous chondrite meteorites mixed with materials indigenous to Vesta and found no evidence for large-scale volcanism (exposed dikes/pyroclastic falls) as the source of DM.