Exploring the nature and synchronicity of early cluster formation in the Large Magellanic Cloud - III. Horizontal branch morphology

R. Wagner-Kaiser, Dougal Mackey, Ata Sarajedini, Roger E. Cohen, Doug Geisler, Soung Chul Yang, Aaron J. Grocholski, Jeffrey D. Cummings

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    We leverage new high-quality data from Hubble Space Telescope program GO-14164 to explore the variation in horizontal branch morphology among globular clusters in the Large Magellanic Cloud (LMC). Our new observations lead to photometry with a precision commensurate with that available for the Galactic globular cluster population. Our analysis indicates that, once metallicity is accounted for, clusters in the LMC largely share similar horizontal branch morphologies regardless of their location within the system. Furthermore, the LMC clusters possess, on average, slightly redder morphologies than most of the inner halo Galactic population; we find, instead, that their characteristics tend to be more similar to those exhibited by clusters in the outer Galactic halo. Our results are consistent with previous studies, showing a correlation between horizontal branch morphology and age.

    Original languageEnglish
    Pages (from-to)4358-4365
    Number of pages8
    JournalMonthly Notices of the Royal Astronomical Society
    Volume474
    Issue number4
    DOIs
    Publication statusPublished - 1 Mar 2018

    Fingerprint

    Dive into the research topics of 'Exploring the nature and synchronicity of early cluster formation in the Large Magellanic Cloud - III. Horizontal branch morphology'. Together they form a unique fingerprint.

    Cite this