3D Rotation of the Open Cluster NGC 2516

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ID: 325478
2026
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Abstract
Abstract We have combined Gaia astrometry with Gaia-ESO Survey radial velocities to measure the 3D rotation of the open cluster NGC 2516. We compiled a sample of 376 members with astrometry and spectroscopy and use these to determine a distance to the cluster of 406.4 ± 0.8 pc, which we then use to infer the 3D positions and velocities of all stars in the cluster using a Bayesian model. We identify the axis of maximum cluster rotation and measure a median rotational velocity of 0.11 ± 0.02 km s−1. We find the axis of maximum cluster rotation to be 52○ ± 22○ to the plane of our galaxy. We compare this rotation rate to measurements of cluster rotation in other open clusters and find that it is inconsistent with the expected dependences on cluster age and mass.
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openalex_W7134032701 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Nicholas J. Wright, R. D. Jeffries, M. A. Whalley
Journal monthly notices of the royal astronomical society
Year 2026
DOI
10.1093/mnras/stag1576
URL
https://doi.org/10.1093/mnras/stag1576
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