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

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

2008-08-13

arxiv.org/abs/0808.1889v1

Astronomy and Astrophysics

Astrophysics

25 pages, accepted to AJ

Scientific paper

10.1088/0004-6256/136/5/1828

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.

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