HII Region Luminosity Functions: Derivation of a New Standard Candle for Extragalactic Distances
We propose the use of the break in the HII region luminosity function (LF) as a possible refined powerful standard candle for extragalactic distances. The invariance and high luminosity of the LF break has been proposed in previous studies as a possible secondary standard candle, but it is calibrated here for the first time using the LFs of NGC 925
Zurita, A. et al.
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2001