Measuring the Balmer jump and the effective gravity in FGK stars

Michael S. Bessell*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    13 Citations (Scopus)

    Abstract

    It is difficult to accurately measure the effective gravity (log g) in late-type stars using broadband (e.g., UBV or SDSS) or intermediate-band (uvby) photometric systems, especially when the stars can cover a range of metallicities and reddenings. However, simple spectroscopic observational and data reduction techniques can yield accurate values for log g through comparison of the Balmer jumps of low-resolution spectra with recent grids of synthetic flux spectra.

    Original languageEnglish
    Pages (from-to)605-615
    Number of pages11
    JournalPublications of the Astronomical Society of the Pacific
    Volume119
    Issue number856
    DOIs
    Publication statusPublished - Jun 2007

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