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Primary Period-Luminosity-Relation Calibrators in the Milky Way: Cepheids and RR Lyrae Physical basis, Calibration, and Applications

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arxiv 2307.03033 v1 pith:5QU2OFHN submitted 2023-07-06 astro-ph.GA

classification astro-ph.GA
keywords resultsapplicationscalibrationcepheidsdatadiscusslyraeperiod-luminosity
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In this invited review I discuss the calibration and applications of the period-luminosity relation of classical Cepheid and RR Lyrae stars. After a brief introduction, starting with results from Hipparcos and discussing some post-Hipparcos era developments, I focus on recent results using Gaia Data Release 3 data. I present an overview of the most recent period-luminosity relations, a discussion and some new results on Cepheids in open clusters. I also discuss the effect of reddening and that the use of Wesenheit indices is actually an oversimplification to dealing with the problem of reddening.

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  1. Basic stellar observables

    astro-ph.SR 2024-12 unverdicted

    A pedagogical review chapter summarizing the standard physical and observational methods for deriving basic stellar properties from their light.

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