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Keeping It Cool: Much Orbit Migration, yet Little Heating, in the Galactic Disk

Frankel, Neige; Sanders, Jason; Ting, Yuan-Sen; Rix, Hans-Walter


A star in the Milky Way’s disk can now be at a Galactocentric radius quite distant from its birth radius for two reasons: either its orbit has become eccentric through radial heating, which increases its radial action JR (“blurring”), or merely its angular momentum Lz has changed and thereby its guiding radius (“churning”)

CollectionsANU Research Publications
Date published: 2020
Type: Journal article
Source: The Astrophysical Journal
DOI: 10.3847/1538-4357/ab910c
Access Rights: Open Access


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