Thermal processing of chondrule precursors in planetesimal bow shocks
نویسندگان
چکیده
منابع مشابه
Evaluating Planetesimal Bow Shocks as Possiblesites for Chondrule Formation
Introduction: Nebular shock waves are considered among the leading candidates for forming chondrules [1-4] and are also capable of explaining the existence of other components of primitive meteorites [5]. While it has been shown that shock waves can explain the thermal processing of chondrules, the source of the shock waves is still debated. Among the candidates for producing chondrule-forming ...
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Introduction: Dynamical interactions between planetoids and planets are a natural consequence of planet formation and can place large bodies on eccentric and/or inclined orbits [1-3]. If gas is present during scattering events, as is suggested by recent models of Mars’s low mass [3,4] and new age estimates for Mars’s formation [5], a wide range of nebular shocks can be produced. Any solids that...
متن کاملEarly Planetesimal Splashing: Reconciling Chondrule Formation with Disk
Disk evolution and chondrules: Historically it has often been tacitly supposed (e.g. [1]) that the protoplanetary disk evolved through four sequential stages: (1) production of CAIs and chondrules by the rapid (flash) melting of clumps of dust; (2) accretion of primitive planetesimals; (3) metamorphism and melting of those planetesimals; (4) collisional break-up of planetesimals and their aggre...
متن کاملModelling Non-axisymmetric Bow Shocks
I present an extension of the thin layer approximation to non-axisymmetric bow shocks. By choosing a suitable set of curvilinear coordinates that matches the geometry of a generally distorted bow shock surface, I derive the fluid equations for the flow. Analytical expansions are given for the matter flow near the bow shock stagnation point. Numerical solutions are also obtained, by using a revi...
متن کاملCHONDRULE FORMATION IN NEBULAR SHOCK WAVES GENERATED BY PLANETESIMALS PASSING THROUGH JOVIAN RESONANCES: RELATIVE IMPORTANCE OF BOW SHOCKS AND IMPACT SHOCKS. L. L. Hood
PASSING THROUGH JOVIAN RESONANCES: RELATIVE IMPORTANCE OF BOW SHOCKS AND IMPACT SHOCKS. L. L. Hood 1 , F. J. Ciesla 2 , N. A. Artemieva 3,4 , F. Marzari 5 , and S. J. Weidenschilling 4 , 1 Lunar and Planetary Laboratory, Univ. of Arizona, Tucson, Arizona 85721, [email protected], 2 Dept. of Geophysical Sciences, Univ. of Chicago, Chicago, Illinois 60637, 3 Institute for Dynamics of Geospheres...
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ژورنال
عنوان ژورنال: Meteoritics & Planetary Science
سال: 1998
ISSN: 1086-9379,1945-5100
DOI: 10.1111/j.1945-5100.1998.tb01611.x