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Abstract: Recent observations of white dwarfs in globular clusters indicate that thesestars may get a velocity kick during their time as giants. This velocity kickcould originate naturally if the mass loss while on the asymptotic giant branchis slightly asymmetric. The kicks may be large enough to dramatically changethe radial distribution of young white dwarfs, giving them larger energies thanother stars in the cluster. As these energetic white dwarfs travel through thecluster they can impart their excess energy on the other stars in the cluster.This new heat source for globular clusters is expected to be largest during theclusters- youth.



Author: Jeremy S. Heyl UBC

Source: https://arxiv.org/



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