The Brightest Stars In Galaxies As Distance Indicators
BibTeX
@MISC{Lyo_thebrightest,
author = {Ran Lyo and Myung Gyoon Lee},
title = {The Brightest Stars In Galaxies As Distance Indicators},
year = {}
}
Share
 |
 |
 |
 |
||
OpenURL
Abstract
INTRODUCTION The brightest stars in galaxies have been used as distance indicators since Hubble(1936). However, the accuracy of the brightest stars for distance estimates has been controversial. Recently, Rozanski and RowanRobinson (1994) argued large errors in the distance determination : 0.58 mag and 0.90 mag, respectively, for the brightest red stars and the brightest blue stars, while Karachentsev and Tikhonov(1994) suggested much smaller errors in the distance determination : 0.37 mag for the brightest red stars and 0.46 mag for the brightest blue stars. The reasons for these conflicting results are not yet known. We have investigated the accuracy of this method using a sample of 17 galaxies(LMC, SMC, NGC 6822, IC 1613, M31, IC 10, M33, WLM, NGC 3109, Sextans B, Sextans A, NGC 300, LeoA, NGC 2403, M81, IC 4182, M101) for which Cepheid distances are known and reliable photometry of the brightest stars are available (Figure 1). II. ESTIMATING THE DISTANCES TO GALAX
