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Abstract: The wind of an asymptotic-giant-branch stars is sufficiently strong that ifit is slightly asymmetric, it can propel the star outside of the open clusterof its birth or significantly alter its trajectory through a globular cluster;therefore, if these stellar winds are asymmetric, one would expect a deficit ofwhite dwarfs of all ages in open clusters and for young white dwarfs to be lessradially concentrated than either their progenitors or older white dwarfs inglobular clusters. This latter effect has recently been observed. Hence,detailed studies of the radial distribution of young white dwarfs in globularclusters could provide a unique probe of mass loss on the asymptotic giantbranch and during the formation of planetary nebulae both as a function ofmetallicity and a limited range of stellar mass.



Author: Jeremy S. Heyl

Source: https://arxiv.org/







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