On line contribution functions and examining spectral line formation in 3D model stellar atmospheres

A. M. Amarsi*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)

    Abstract

    Line contribution functions are useful diagnostics for studying spectral line formation in stellar atmospheres. I derive an expression for the contribution function to the absolute flux depression that emerges from three-dimensional 'box-in-a-star' model stellar atmospheres. I illustrate the result by comparing the local thermodynamic equilibrium (LTE) spectral line formation of the high-excitation permitted OI 777 nm lines with the non-LTE case.

    Original languageEnglish
    Pages (from-to)1612-1616
    Number of pages5
    JournalMonthly Notices of the Royal Astronomical Society
    Volume452
    Issue number2
    DOIs
    Publication statusPublished - 11 Feb 2015

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