Element abundances
Trace element abundances in the shallow lithospheric mantle of the North Atlantic Craton margin: implications for melting and metasomatism beneath Northern Scotland
... major- element compositions of these Scottish xenoliths is similar to that of ultramafic cumulate rocks from the Archaean Tartoq supracrustal belt of SW Greenland ...major-element abundances, more ...
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Disk evolution, element abundances and cloud properties of young gas giant planets
... Element abundances are critical parameters to predict the atmospheric composition of exoplanets and to understand their formation and evolution, including potentially the emergence of ...elemental ...
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Heavy element abundances in ionized nebulae
... C hapter 3 introduces empirical composite models for the planetary nebula NGC 5882, which shows mild O R L/C EL discrepancy factors of ~ 2 . A model is favoured which fits well the various plasma and abundance ...
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Trace And Rare Earth Elements Enriched Carbonatite Rocks Of Pakkanadu Alkaline Complex, South India
... high abundances of Ba and Sr and Sr/Ba ratio ranges from <1 (ferrocarbonatite) to >1 (calico ...moderate abundances of compatible elements like Ni, Cr, Cs and V indicate some degree of fractionation ...
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Stellar astrophysics: a study of stellar physics with particular reference to low mass stars
... with substellar masses really exist in substantial number. To confirm this, D ’Antona and Mazzitelli (1983) and Kroupa et al. (1990) studied in detail the stellar initial mass function and stressed the importance of the ...
183
Elemental abundances of solar sibling candidates
... rare-element abundances for this star further confirm its solar composition, with the only possible exception of ...the abundances of those elements that show large star-to-star scatter at a given ...
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The mineral clouds on HD 209458b and HD 189733b
... depleted element abundances, cloud opacity) are determined by the local thermo- and hydrody- namic ...changing element abundances and the molecular composition are discussed with the resulting ...
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Abundances in Przybylski's star
... derived element abundances has brought synthetic photometric colours closer to the observed ones, some discrepancies still ...of abundances derived from lines of different ionization stages of a ...
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Galactic Pal eontology:abundance analysis of the disrupted globular cluster Palomar 5
... Globular clusters are amongst the oldest objects in the Universe and offer unique testbeds to probe internal evolutionary pro- cesses at those early times, as well as the build-up of the Galactic halo. As to the first ...
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Expect the unexpected : non equilibrium processes in brown dwarf atmospheres
... The chemical composition, Tgas z, pgas z, vconv , and the initial element abundances determine the formation of clouds in brown dwarf and in planetary atmospheres.. Clouds have a strong [r] ...
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Nitrogen Abundances in Early-Type Be Stars
... nitrogen abundances in an effort to detect rotational mixing in the Be ...nitrogen abundances among these ...nitrogen abundances at the level ≈ ...
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Application of Laboratory Atomic Physics to Some Significant Stellar Chemical Composition Questions
... 2. Abundances of n-capture elements in the very metal-poor r-process-rich star J0954+5246 and those of r-process and s-process material in the solar system ...the abundances are presented, and in the bottom ...
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The abundances of the elements in the oldest disk stars
... variations in metal abundance which also affect the electron pressure, especially for the cooler stars. Thus electron pressure is a function of temperature, gravity and abundance. This is displayed in fig. III-3 where ...
280
Revisiting the solid HDO/H2O abundances
... i.e. accreted in a more quiescent phase than that probed now. This is clear, since using background stars to probe molecular clouds, one can generally derive a correlation between the ob- served ice column density and ...
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The Late Quaternary Paleolimnology of Lake Ontario
... (http://ngdc.noaa.gov/mgg/dem/). ........................................................................................... 25 Figure 2.3. Photographs of: a) Fabaeformiscandona caudata, b) Candona subtrigangulata and c) ...
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Microbial community structure in the western tropical South Pacific
... microbial abundances and dis- tribution remain not well ...determined abundances of non-pigmented pro- tists (also called ...low abundances, pico- phytoeukaryotes (PPE) accounted for up to 26 ± ...
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Manganese abundances in mercury-manganese stars
... the abundances we have derived are internally consistent with expected errors of ...i abundances compared with Mn ii, only that, if any such effects are present, either they are small or the factors ...
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Li abundances in F stars : planets, rotation, and Galactic evolution
... Li abundances is expected to be higher for more massive planets (stronger effect on rotational history, Bouvier 2008), and for planets that migrate (more violent accretion bursts, Bara ff e & Chabrier ...
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Time-scale dynamics of proteome and transcriptome of the white-rot fungus Phlebia radiata: growth on spruce wood and decay effect on lignocellulose
... It appears that P. radiata initiates a strong oxidoreduc- tase and lignin-attacking enzyme expression in contact with wood, which is seen in high transcription upregu- lation and protein production already during the ...
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SUZAKU WIDE-BAND X-RAY SPECTROSCOPY OF THE ELLIPTICAL GALAXY NGC 4382
... and lower background than any previous X-ray CCD detector [9]. The elliptical galaxy NGC 4382 is in the Virgo Cluster, but it differs from other Virgo early-type galaxies by being rather inconspicuous in X-rays. The ISM ...
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