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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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