# ROTATIONAL AND RADIAL VELOCITIES OF 1.3–2.2 M☉ RED GIANTS IN OPEN CLUSTERS

@article{Carlberg2014ROTATIONALAR,
title={ROTATIONAL AND RADIAL VELOCITIES OF 1.3–2.2 M☉ RED GIANTS IN OPEN CLUSTERS},
author={Joleen K. Carlberg},
journal={The Astronomical Journal},
year={2014},
volume={147}
}
• J. Carlberg
• Published 16 April 2014
• Physics
• The Astronomical Journal
This study presents the rotational distribution of red giant (RG) stars in 11 old to intermediate age open clusters. The masses of these stars are all above the Kraft break, so they lose negligible amounts of their birth angular momentum (AM) during the main-sequence (MS) evolution. However, they do span a mass range with quite different AM distributions imparted during formation, with the stars less massive than ∼1.6M☉ arriving on the MS with lower rotation rates than the more massive stars…

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