Sorting stardust
نویسندگان
چکیده
منابع مشابه
Breakup, Sorting, Mixing, and Melting of Cometary Dust during Capture by Stardust
Introduction: Dust from comet Wild 2 was collected at a velocity of 6.1 km/s by the Stardust spacecraft using low-density silica aerogel [1]. During deceleration, dust particles fragmented, mixed with aerogel, and were thermally modified, often melted. In order to disentangle the properties of impacting cometary particles from those caused by the capture process, Wild 2 material from various lo...
متن کاملStardust in meteorites.
Primitive meteorites, interplanetary dust particles, and comets contain dust grains that formed around stars that lived their lives before the solar system formed. These remarkable objects have been intensively studied since their discovery a little over twenty years ago and they provide samples of other stars that can be studied in the laboratory in exquisite detail with modern analytical tool...
متن کاملStardust Wild 2 Dust Measurements
McDonnell, A. J. Tuzzolino, T. E. Economou, B. C. Clark, Z. Sekanina, P. Tsou, D. E. Brownlee, PSSRI, The Open University, Walton Hall, Milton Keynes, MK7 6AA, UK, [email protected], Laboratory for Astrophysics and Space Research, Enrico Fermi Institute, University of Chicago, 933 East 56 St, Chicago Ill 60637, USA, Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grov...
متن کاملStardust Microcrater Residue Compositional Groups
Introduction: Impact craters found across the Stardust foils have preserved residue from the cometary grains [1, 2, 3]. It has been successfully demonstrated that stoichiometric mineral compositions have been preserved in larger craters (e.g. >15 μm) including identified mineral grains [4]. Techniques used have been SEM EDS analyses of residue in-situ within craters and TEM EDS analyses of wafe...
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ژورنال
عنوان ژورنال: Nature
سال: 1998
ISSN: 0028-0836,1476-4687
DOI: 10.1038/26348