Calibrating Interstellar Abundances Using Supernova Remnant Radiative Shocks

Michael A. Dopita, Ivo R. Seitenzahl, Ralph S. Sutherland, David C. Nicholls, Frédéric P.A. Vogt, Parviz Ghavamian, Ashley J. Ruiter

    Research output: Contribution to journalArticlepeer-review

    27 Citations (Scopus)


    Using integral field data we extract the optical spectra of shocked interstellar clouds in Kepler's supernova remnant located in the inner regions of our Galaxy, as well as in the Large Magellanic Cloud, the Small Magellanic Cloud, NGC 6822, and IC 1613. Using self-consistent shock modeling, we make a new determination of the chemical composition of the interstellar medium in N, O, Ne, S, Cl, and Ar in these galaxies and obtain accurate estimates of the fraction of refractory grains destroyed in the shock. By comparing our derived abundances with those obtained in recent works using observations of B-stars, F supergiant stars, and H ii regions, we provide a new calibration for abundance scaling in the range of .

    Original languageEnglish
    Article number50
    JournalAstronomical Journal
    Issue number2
    Publication statusPublished - Feb 2019


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