4.6 Article

Were the Large Magellanic Cloud globular clusters formed in a disk?

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ASTRONOMICAL JOURNAL
卷 127, 期 2, 页码 897-898

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UNIV CHICAGO PRESS
DOI: 10.1086/381303

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galaxies : star clusters; Magellanic Clouds

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The radial velocities of the 13 globular clusters in the Large Magellanic Cloud have a dispersion of 28 km s(-1) relative to the H I rotation curve of the LMC, compared with a dispersion of 30 km s(-1) with regard to the mean globular cluster velocity. This shows that, contrary to a suggestion made by Schommer et al. in 1992, one cannot yet rule out the possibility that the LMC globular clusters formed in a pressure-supported halo, rather than in a rotating disk. The globular clusters in the LMC may therefore, after all, exhibit a relationship between age and kinematics that is similar to that of the clusters in M33.

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