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The Distance to the Large Magellanic Cloud

Published online by Cambridge University Press:  12 April 2016

Piotr Popowski*
Affiliation:
Institute of Geophysics and Planetary Physics, L-413 Lawrence Livermore National Laboratory, University of California P. O. Box 808, Livermore, CA 94551, USA

Abstract

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I demonstrate that the two unexpected results in the local Universe: anomalous intrinsic (VI)0 colors of RR Lyrae stars and clump giants in the Galactic center, and very short distances to Magellanic Clouds inferred from clump giants, can be at least partially resolved with a modified coefficient of selective extinction AV/E(VI). With this modification, I find a new clump-giant distance modulus to the Large Magellanic Cloud, μLMC = 18.27 ± 0.07, which is 0.09 larger than the Udalski (1998b) result. When distance estimates from the red clump, RR Lyrae stars and the eclipsing binary HV2274 are combined, one obtains μLMC = 18.31 ± 0.04 (internal).

Type
Part 3. Cepheids, RR Lyrae Stars, Distance Scales
Copyright
Copyright © Astronomical Society of the Pacific 2000

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