The Blue Straggler Population in Dwarf Galaxies

Abstract

In this chapter I review the recent developments regarding the study of Blue Stragglers (BSS) in dwarf galaxies. The loose density environment of dwarf galaxies resembles that of the Galactic Halo, hence it is natural to compare their common BSS properties. At the same time, it is unescapable to compare with the BSS properties in Galactic Globular clusters, which constitute the reference point for BSS studies. Admittedly, the literature on BSS in dwarf galaxies is not plentiful. The limitation is mostly due to the large distance to even the closest dwarf galaxies. Nevertheless, recent studies have allowed a deeper insight on the BSS photometric properties that are worth examining.

arXiv commentChapter 6, in Ecology of Blue Straggler Stars, H.M.J. Boffin, G. Carraro & G. Beccari (Eds), Astrophysics and Space Science Library, Springer

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• Metal-Rich SX Phe stars in the Kepler Field
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• The blue straggler population of the open clusters Trumpler 5, Trumpler 20, and NGC 2477
• First direct detection of an RR Lyrae star conclusively associated with an intermediate-age cluster
• The long-term evolution of Ultra Faint Dwarf Galaxies and observational implications