Abstract
Diffraction-limited observations with the E-ELT will make blue supergiants accessible to intermediate-resolution spectroscopy in galaxies out to the Virgo and Fornax clusters. BA-type supergiants (BA-SGs) will be primary targets for the study of the young stellar populations because of their enormous luminosities, their rich metal line spectra and their comparatively simple atmospheres. Quantitative analyses will allow stellar and galactochemical evolution to be investigated in different environments: in field galaxies, in galaxy groups and in clusters.
As the use of adaptive optics techniques will restrain observations to the near-IR we are faced with the challenge of extending quantitative spectral analyses of BA-SGs to a wavelength regime that has so far been neglected. We report first results from a pilot spectroscopic investigation of Galactic BA-SGs at high resolution using CRIRES on the VLT. This is in order to establish quantitative near-IR spectroscopy of BA-SGs in preparation for the extragalactic stellar science programme with the E-ELT.
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Przybilla, N., Seifahrt, A., Butler, K., Nieva, M.F., Käufl, HU., Kaufer, A. (2009). Near-IR Spectroscopy of Blue Supergiants. In: Moorwood, A. (eds) Science with the VLT in the ELT Era. Astrophysics and Space Science Proceedings. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-9190-2_10
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DOI: https://doi.org/10.1007/978-1-4020-9190-2_10
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