A second luminous blue variable in the Quintuplet Cluster

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Title: A second luminous blue variable in the Quintuplet Cluster
Author: Geballe, Thomas; Najarro, Francisco; Figer, Donald
Abstract: H and K band moderate resolution and 4 µm high resolution spectra have been obtained for FMM#362, a bright star in the Quintuplet Cluster near the Galactic Center. The spectral features in these bands closely match those of the Pistol Star, a luminous blue variable and one of the most luminous stars known. The new spectra and previously-obtained photometry imply a very high luminosity for FMM#362, L 106 L⊙, and a temperature of 10,000 – 13,000 K. Based on its luminosity, temperature, photometric variability, and similarities to the Pistol Star, we conclude that FMM#362 is a luminous blue variable. (Refer to PDF file for exact formulas).
Description: Also archived in: arXiv:astro-ph/9912415 v1 20 Dec 1999
Record URI: http://hdl.handle.net/1850/1994
Date: 2000-02-20

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