# The Double-lined Spectrum of LBV 1806–20

@article{Figer2004TheDS,
title={The Double-lined Spectrum of LBV 1806–20},
author={Donald F. Figer and Francisco Najarro and Rolf Peter Kudritzki},
journal={The Astrophysical Journal Letters},
year={2004},
volume={610},
pages={L109 - L112}
}
• Published 14 June 2004
• Physics
• The Astrophysical Journal Letters
Despite much theoretical and observational progress, there is no known firm upper limit to the masses of stars. Our understanding of the interplay between the immense radiation pressure produced by massive stars in formation and the opacity of infalling material is subject to theoretical uncertainties, and many observational claims of "the most massive star" have failed the singularity test. LBV 1806-20 is a particularly luminous object, L ∼ 106 L⊙, for which some have claimed very high mass…
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We report the discovery of additional hot and massive stars in the cluster surrounding the soft gamma repeater SGR 1806-20, based on United Kingdom Infrared Telescope and Keck near-infrared
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We present H- and K-band spectroscopy of OB and Wolf–Rayet (WR) members of the Milky Way cluster 1806−20 (G10.0–0.3) to obtain a revised cluster distance, of relevance to the 2004 giant flare from
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