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arXiv · 2209.14314

MUSE 3D spectroscopy of BA-type supergiants in NGC 300

Gemma González-Torà·Miguel A. Urbaneja·Norbert Przybilla·Stefan Dreizler·Martin M. Roth·Sebastian Kamann·Norberto Castro
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Abstract

We present the results obtained using spectroscopic data taken with the intermediateresolution Multi Unit Spectroscopic Explorer (MUSE) of B and A-type supergiants and bright giants in the Sculptor Group galaxy NGC 300. For our analysis, a hybrid local thermodynamic equilibrium (LTE) line-blanketing+non-LTE method was used to improve the previously published results for the same data. In addition, we present some further applications of this work, which includes extending the flux-weighted gravity luminosity relationship (FGLR), a distance determination method for supergiants. This pioneering work opens up a new window to explore this relation, and also demonstrates the enormous potential of integral field spectroscopy (IFS) for extragalactic quantitative stellar studies.

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Gemma González-Torà, Miguel A. Urbaneja, Norbert Przybilla, Stefan Dreizler, Martin M. Roth, Sebastian Kamann, Norberto Castro. 2022-09-28. MUSE 3D spectroscopy of BA-type supergiants in NGC 300. https://doi.org/10.1017/s1743921322002186

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