On The Origin of the Blue Tilt in Extragalactic Globular Cluster Systems

Abstract

Some early-type galaxies show a correlation between color and integrated magnitude among the brighter metal-poor globular clusters (GCs). This phenomenon, known as the blue tilt, implies a mass-metallicity relationship among these clusters. In this paper we show that self-enrichment in GCs can explain several aspects of the blue tilt, and discuss predictions of this scenario.

25 pages, accepted to AJ

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Cited by in corpus (9)

• Globular Cluster Systems in Giant Ellipticals: the Mass/Metallicity Relation
• Nitrogen abundances and multiple stellar populations in the globular clusters of the Fornax dSph
• The Detailed Chemical Properties of M31 Star Clusters I. Fe, Alpha and Light Elements
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• First confirmed ultra-compact dwarf galaxy in the NGC 5044 group
• A stellar census in globular clusters with MUSE. Metallicity spread and dispersion among first-population stars
• Milky Way Globular Cluster Metallicity and Low-Mass X-ray Binaries: The Red Giant Influence