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The Distance to the Galactic Center

Published online by Cambridge University Press:  12 April 2016

D. H. McNamara ,
J. B. Madsen ,
J. Barnes  and
B. F. Ericksen
D. H. McNamara
Affiliation:
Department of Physics and Astronomy, Brigham Young University, Provo, Utah 84602, USA
J. B. Madsen
Affiliation:
Department of Physics and Astronomy, Brigham Young University, Provo, Utah 84602, USA
J. Barnes
Affiliation:
Department of Physics and Astronomy, Brigham Young University, Provo, Utah 84602, USA
B. F. Ericksen
Affiliation:
Department of Physics and Astronomy, Brigham Young University, Provo, Utah 84602, USA

Abstract

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The Optical Gravitational Lensing Experiment (OGLE) data on high-amplitude δ Scuti Stars (HADS) and RR Lyrae stars have been analyzed to determine the distance to the galactic bulge. We find a mean value of 14.47 ± 0.08 mag for the bulge distance modulus. A small additive correction leads to 7.9 ± 0.3 kpc as the best distance to the galactic center.

Type
Part 3. Cepheids, RR Lyrae Stars, Distance Scales
Information
International Astronomical Union Colloquium , Volume 176: The Impact of Large-Scale Surveys on Pulsating Star Research , 2000 , pp. 208 - 211
Copyright
Copyright © Astronomical Society of the Pacific 2000

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