Back to Volume
Paper: The brightest stars as distance indicators
Volume: 4, The Extragalactic Distance Scale: Proceedings of the ASP 100th Anniversary Symposium
Page: 103
Authors: Humphreys, Roberta M.
Abstract: The luminosities of the brightest early-type supergiants have a well known dependence on the luminosity of the galaxy. In addition, many of the brightest blue 'stars' are actually compact HII regions, clusters, and composite images. This is a serious problem in increasingly distant galaxies. Therefore, they are not recommended as distance indicators. The brightest M supergiants have an upper bound to their bolometric luminosities due to the stability limit of the most massive evolved stars, making the red supergiants potentially powerful distance indicators.
Back to Volume