Cepheid Period-Luminosity Relations: Galactic vs. LMC and the Results from t-Test

Details Cepheid Period-Luminosity Relations: Galactic vs. LMC and the Results from t-Test Cepheid Period-Luminosity Relations: Galactic vs. LMC and the Results from t-Test

2004-11-08

arxiv.org/abs/astro-ph/0411203v1

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures, submitted to the "Gaia: Three Dimension Universe", will be published by ESA

Scientific paper

The period-luminosity (PL) relation for Galactic Cepheids is derived with recent independent distance measurements taken from literature. Our PL relation confirms the work of Tammann et al. (2003), which showed that the Galactic Cepheids follow a different PL relation to their LMC counterparts. Our results also show that the slope of the Galactic PL relation is inconsistent with the LMC slope with more than 95% confidence. The details of this work can be found in Ngeow & Kanbur (2004).

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