On The Origin of the Blue Tilt in Extragalactic Globular Cluster Systems
arXiv:0808.1889 · doi:10.1088/0004-6256/136/5/1828
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