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    Heavy-Element Dispersion In The Metal-Poor Globular Cluster M92 

    Roederer, Ian U.; Sneden, Christopher (2011-07)
    Dispersion among the light elements is common in globular clusters (GCs), while dispersion among heavier elements is less common. We present detection of r-process dispersion relative to Fe in 19 red giants of the metal-poor ...
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    The Two Metallicity Groups Of The Globular Cluster M22: A Chemical Perspective 

    Marino, A. F.; Sneden, Christopher; Kraft, R. P.; Wallerstein, G.; Norris, J. E.; Da Costa, G.; Milone, A. P.; Ivans,, II; Gonzalez, G.; Fulbright, J. P.; Hilker, M.; Piotto, G.; Zoccali, M.; Stetson, P. B. (2011-08)
    We present a detailed chemical composition analysis of 35 red giant stars in the globular cluster M22. High resolution spectra for this study were obtained at five observatories, and analyzed in a uniform manner. We have ...
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    Chemical Abundances For Evolved Stars In M5: Lithium Through Thorium 

    Lai, David K.; Smith, Graeme H.; Bolte, Michael; Johnson, Jennifer A.; Lucatello, Sara; Kraft, Robert P.; Sneden, Christopher (2011-02)
    We present analysis of high-resolution spectra of a sample of stars in the globular cluster M5 (NGC 5904). The sample includes stars from the red giant branch (RGB; seven stars), the red horizontal branch (two stars), and ...
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    Characterizing The Heavy Elements In Globular Cluster M22 And An Empirical S-Process Abundance Distribution Derived From The Two Stellar Groups 

    Roederer, Ian U.; Marino, A. F.; Sneden, Christopher (2011-11)
    We present an empirical s-process abundance distribution derived with explicit knowledge of the r-process component in the low-metallicity globular cluster M22. We have obtained high-resolution, high signal-to-noise spectra ...
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    The Two Metallicity Groups Of The Globular Cluster M22: A Chemical Perspective 

    Marino, A. F.; Sneden, Christopher; Kraft, R. P.; Wallerstein, G.; Norris, J. E.; Da Costa, G.; Milone, A. P.; Ivans,, II; Gonzalez, G.; Fulbright, J. P.; Hilker, M.; Piotto, G.; Zoccali, M.; Stetson, P. B. (2011-08)
    We present a detailed chemical composition analysis of 35 red giant stars in the globular cluster M22. High resolution spectra for this study were obtained at five observatories, and analyzed in a uniform manner. We have ...
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    Silicon And Oxygen Abundances In Planet-Host Stars 

    Brugamyer, Erik; Dodson-Robinson, Sarah E.; Cochran, William D.; Sneden, Christopher (2011-09)
    The positive correlation between planet detection rate and host star iron abundance lends strong support to the core accretion theory of planet formation. However, iron is not the most significant mass contributor to the ...
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    Improved Log(gf) Values of Selected Lines in Mn I and Mn II for Abundance Determinations in FGK Dwarfs and Giants 

    Den Hartog, E. A.; Lawler, James E.; Sobeck, Jennifer S.; Sneden, Christopher; Cowan, John J. (2011-06)
    The goal of the present work is to produce transition probabilities with very low uncertainties for a selected set of multiplets of Mn I and Mn II. Multiplets are chosen based upon their suitability for stellar abundance ...
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    The Chemical Compositions of Variable Field Horizontal-Branch Stars: RR Lyrae Stars 

    For, Bi-Qing; Sneden, Christopher; Preston, George W. (2011-12)
    We present a detailed abundance study of 11 RR Lyrae ab-type variables: AS Vir, BS Aps, CD Vel, DT Hya, RV Oct, TY Gru, UV Oct, V1645 Sgr, WY Ant, XZ Aps, and Z Mic. High-resolution and high signal-to-noise ratio echelle ...
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    The Chemical Abundances Of Stars In The Halo (CASH) Project. II. A Sample Of 14 Extremely Metal-Poor Stars 

    Hollek, Julie K.; Frebel, Anna; Roederer, Ian U.; Sneden, Christopher; Shetrone, Matthew; Beers, Timothy C.; Kang, Sung-Ju; Thom, Christopher (2011-11)
    We present a comprehensive abundance analysis of 20 elements for 16 new low-metallicity stars from the Chemical Abundances of Stars in the Halo (CASH) project. The abundances have been derived from both Hobby-Eberly Telescope ...

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    Author
    Sneden, Christopher (9)
    Marino, A. F. (3)Roederer, Ian U. (3)Da Costa, G. (2)Fulbright, J. P. (2)Gonzalez, G. (2)Hilker, M. (2)Ivans,, II (2)Kraft, R. P. (2)Milone, A. P. (2)... View MoreSubjectastronomy & astrophysics (9)
    stars: abundances (9)
    metal-poor stars (6)stars: population ii (6)neutron-capture elements (5)centauri ngc 5139 (4)red giant branch (4)double subgiant branch (3)star abundance variations (3)asymptotic giant branch (2)... View MoreDate Issued
    2011 (9)
    DepartmentAstronomy (9)Has File(s)Yes (9)

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    University of Texas at Austin Libraries
    • facebook
    • twitter
    • instagram
    • youtube
    • CONTACT US
    • MAPS & DIRECTIONS
    • JOB OPPORTUNITIES
    • UT Austin Home
    • Emergency Information
    • Site Policies
    • Web Accessibility Policy
    • Web Privacy Policy
    • Adobe Reader
    Subscribe to our NewsletterGive to the Libraries

    © The University of Texas at Austin