Abstract
In this work we study the effects of the Hercules cluster environment on the chemical history of star-forming (SF) galaxies. For this purpose we have derived the gas metallicities, the mean stellar metallicities and ages, the masses and the luminosities of our sample of galaxies. We have found that our Hercules SF galaxies are either chemically evolved spirals with nearly flat oxygen gradients, or less metal-rich dwarf galaxies which appear to be the “newcomers” in the cluster. Most Hercules SF galaxies follow well defined mass-metallicity and luminosity-metallicity sequences; nevertheless significant outliers to these relations have been identified, illustrating how environmental effects can provide a physical source of dispersion in these fundamental relations.
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Petropoulou, V., Vı́lchez, J.M., Iglesias-Páramo, J., Papaderos, P. (2011). The Hercules Cluster Environment Impact on the Chemical History of Star-Forming Galaxies. In: Ferreras, I., Pasquali, A. (eds) Environment and the Formation of Galaxies: 30 years later. Astrophysics and Space Science Proceedings. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-20285-8_12
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DOI: https://doi.org/10.1007/978-3-642-20285-8_12
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