12 research outputs found

    Nuclear Astrophysics and High Energy Particles

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    Noble gases in the terrestrial planets

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    Abundances of primordial noble gases are lower for Mars than for Earth, but are higher for Venus. The data for Venus are attributed to implantation of solar wind in small preplanetary particles. Results for Mars are explained by escape of gas from planetesimals with radius between 5 and 100 km which form within the first 107 yr of the Solar System. Volatile loss is associated with melting caused by short-lived radioisotopes such as 26Al. © 1981 Nature Publishing Group

    Die Eigenschwingungen der MolekĂĽle

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    Prebiotic Chemistry: What We Know, What We Don't

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    Multiple factors in the origin of the Cretaceous/Tertiary boundary: The role of environmental stress and Deccan Trap volcanism

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    Allgemeiner Teil

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    Schwingungen und Rotationen der Molekeln

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