Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004ap.....47...18a&link_type=abstract
Astrophysics (English translation of Astrofizika), v. 47, Issue 1, p. 18-28 (2004).
Astronomy and Astrophysics
Astrophysics
3
Stars - Cepheids - Galaxies - Lmc And Smc Distances
Scientific paper
The zero points of the period-luminosity relations for the classical cepheids are calibrated based on the HIPPARCOS parallaxes of these stars. The calibrations are used to determine the distance moduli of the LMC and SMC: DM LMC = 18m.569 ± 0m.117 and DM SMC = 19m.070 ± 0m.119, respectively. It turns out that a calibration of the PL relations based on the distances of 25 FU classical cepheids in the galaxy by Gieren et al. yields a distance scale that is shorter by approximately 0m.20 than the calibrations based on the HIPPARCOS parallaxes.
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