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Astrophys J. 2000 Feb 20;530(2):L97-L101. doi: 10.1086/312501.

A Second Luminous Blue Variable in the Quintuplet Cluster.

The Astrophysical journal

Geballe, Najarro, Figer

PMID: 10655174 DOI: 10.1086/312501

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 middle dot in circle, 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.

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