Eclipsing Binaries as Accurate Distance Indicators to Nearby Galaxies

Details Eclipsing Binaries as Accurate Distance Indicators to Nearby Galaxies Eclipsing Binaries as Accurate Distance Indicators to Nearby Galaxies

Mar 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994exa.....5..181g&link_type=abstract

Experimental Astronomy, Volume 5, Issue 1-2, pp. 181-183

Astronomy and Astrophysics

Astronomy

7

Scientific paper

We discuss the potential for using extragalactic eclipsing binaries with well-determined physical properties as standard candles to improve the extragalactic distance scale. The advent of high quantum efficiency/low noise CCDs has now made it possible to obtain high precision light and radial velocity curves for the more luminous OB-type eclipsing binaries in the Magellanic Clouds with even small to moderate size (1 2m) telescopes. This can lead to the determination of distance moduli (m-M)0 to the LMC and SMC with precisions of about 0m.15 for individual binaries. These distances are essentially free from the assumptions made using other distance indicators.

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