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

Published online by Cambridge University Press:  29 August 2024

Gemma González-Torà Open the ORCID record for Gemma González-Torà [Opens in a new window] ,
Miguel A. Urbaneja ,
Norbert Przybilla ,
Stefan Dreizler ,
Martin M. Roth ,
Sebastian Kamann Open the ORCID record for Sebastian Kamann [Opens in a new window]  and
Norberto Castro
Gemma González-Torà*
Affiliation:
European Southern Observatory (ESO), Karl-Schwarzschild-Str. 2, 85748 Garching bei München, Germany Astrophysics Research Institute, LJMU, 146 Brownlow Hill, Liverpool L3 5RF, UK Institut für Astro- und Teilchenphysik, Universität Innsbruck, Technikerstr. 25/8, 6020 Innsbruck, Austria
Miguel A. Urbaneja
Affiliation:
Institut für Astro- und Teilchenphysik, Universität Innsbruck, Technikerstr. 25/8, 6020 Innsbruck, Austria
Norbert Przybilla
Affiliation:
Institut für Astro- und Teilchenphysik, Universität Innsbruck, Technikerstr. 25/8, 6020 Innsbruck, Austria
Stefan Dreizler
Affiliation:
Institute for Astrophysics, University of Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
Martin M. Roth
Affiliation:
Leibniz-Institut für Astrophysik (AIP), An der Sternwarte 16, 14482 Postdam, Germany
Sebastian Kamann
Affiliation:
Astrophysics Research Institute, LJMU, 146 Brownlow Hill, Liverpool L3 5RF, UK
Norberto Castro
Affiliation:
Leibniz-Institut für Astrophysik (AIP), An der Sternwarte 16, 14482 Postdam, Germany
*
email: Gemma.GonzaleziTora@eso.org
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Abstract

We present the results obtained using spectroscopic data taken with the intermediate-resolution 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.

Keywords

Galaxies: individual (NGC 300)Galaxies: distances and redshiftsStars: early-typeStars: fundamental parameterssupergiants
Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 18 , Symposium S361: Massive Stars Near and Far , May 2022 , pp. 151 - 156
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Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

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