The assembly of the halo system of the Milky Way as revealed by SDSS/SEGUE - The CEMP star connection

T. C. Beers*, D. Carollo

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

    1 Citation (Scopus)
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    Abstract

    In recent years, massive new spectroscopic data sets, such as the over half million stellar spectra obtained during the course of SDSS (in particular its sub-survey SEGUE), have provided the quantitative detail required to formulate a coherent story of the assembly and evolution of the Milky Way. The disk and halo systems of our Galaxy have been shown to be both more complex, and more interesting, than previously thought. Here we concentrate on the halo system of the Milky Way. New data from SDSS/SEGUE has revealed that the halo system comprises at least two components, the inner halo and the outer halo, with demonstrably different characteristics (metallicity distributions, density distributions, kinematics, etc.). In addition to suggesting new ways to examine these data, the inner/outer halo dichotomy has enabled an understanding of at least one long-standing observational result, the increase of the fraction of carbon-enhanced metal-poor (CEMP) stars with decreasing metallicity.

    Original languageEnglish
    Title of host publicationAssembling the Puzzle of the Milky Way
    EditorsC. Relyé, A. Robin, M. Schultheis
    Pagesp1-p6
    Number of pages6
    Volume19
    DOIs
    Publication statusPublished - 2012
    EventInternational Conference on Assembling the Puzzle of the Milky Way - Le Grand-Bornand, France
    Duration: 17 Apr 201122 Apr 2011

    Other

    OtherInternational Conference on Assembling the Puzzle of the Milky Way
    Country/TerritoryFrance
    CityLe Grand-Bornand
    Period17/04/1122/04/11

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