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Showing 1 to 3 of 3 for “"Cosmic abundances."”.
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Prospecting for elements: Galactic halo planetary nebulae abundances and Virgo spiral galaxy color profiles.
Near-infrared Virgo cluster spiral colors. Near-infrared (NIR) surface photometry in J (1.2$\mu$m), H (1.6$\mu$m) and K (2.2$\mu$m) have been obtained for a sample of Virgo cluster spirals; NGC4321, NGC4303, NGC4571, NGC4689, and NGC4254 which span a large range in HI deficiency. The spirals range …
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The noble gas record of terrestrial and meteoritic samples
… abundance pattern of noble gases relative to cosmic abundances shows a selective depletion of the light-weight gases, except at neon.</li> <li>The amounts of excess neon in the tektites and the diffusion coefficient of neon in tektite glass yield a neon diffusion age in agreement with ages …
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High Pressure Melting of Iron with Nonmetals Sulfur, Carbon, Oxygen, and Hydrogen: Implications for Planetary Cores
… must meet two criteria: first, it must have high cosmic abundances and second, it must be compatible with Fe. Given these two constraints there are five plausible elements that could be the major light element in the core: H, O, C, S, and Si. Of these five possible candidates this thesis focuses …