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Paper: Using LPVs as Tracers of Stellar Populations – Using the Fuel Consumption Theorem
Volume: 378, Why Galaxies Care About AGB Stars: Their Importance as Actors and Probes
Page: 497
Authors: Snigula, J.M.; Goessl, C.A.; Hopp, U.
Abstract: Using our multi-year observing campaign of northern dwarf irregular galaxies of the Local Group, we assembled a sample of long-period pulsating variable stars in these galaxies. Based on the long baseline of continuous observations in R and thorough completeness simulations, this sample can be considered complete. To draw conclusions on the star formation history in these systems, a comparison of the color-magnitude diagrams with the location of different isochrones alone fails due to an age-metallicity degeneracy. Using the Leo A dwarf galaxy as an example, we show how the fuel consumption theorem can be used to break this degeneracy.
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