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		| Paper: | 
		RR Lyrae Calibrations in the Light of Gaia DR2 | 
	 
	
		| Volume: | 
		529, RR Lyrae/Cepheid 2019: Frontiers of Classical Pulsators | 
	 
	
		| Page: | 
		33 | 
	 
	
		| Authors: | 
		Lub, J. | 
	 
	
	
		| Abstract: | 
		The parallaxes from the second Gaia release (DR2) enable us to calibrate the RR Lyrae Period – KS and Period – WBV relations. An RR Lyrae sample of over 200 field stars with mv<12.m5 is constructed. We discuss the theoretical background to Period-Luminosity relations for RR Lyrae stars and study their impact on the distance scale for population II objects and derive the relation between MV and [Fe/H] as well as distances to selected Galactic Globular Clusters and the LMC. | 
	 
	
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