The Rotation of the Globular Cluster 47 Tucanae in the Plane of the Sky
- 1 August 2003
- journal article
- research article
- Published by American Astronomical Society in The Astronomical Journal
- Vol. 126 (2) , 772-777
- https://doi.org/10.1086/376480
Abstract
We have used the Hubble Space Telescope (HST) to measure the component of rotation of 47 Tuc in the plane of the sky, using background stars of the SMC as a reference. The rotation is comparable to that in the line of sight, showing that the axis of rotation of the cluster is considerably inclined. We also give an improved value of the absolute proper motion of 47 Tuc.Keywords
This publication has 5 references indexed in Scilit:
- An Improved Distortion Solution for theHubble Space Telescope’s WFPC2Publications of the Astronomical Society of the Pacific, 2003
- Toward High‐Precision Astrometry with WFPC2. I. Deriving an Accurate Point‐Spread FunctionPublications of the Astronomical Society of the Pacific, 2000
- Space Velocities of Globular Clusters. III. Cluster Orbits and Halo SubstructureThe Astronomical Journal, 1999
- Stellar Content of Local Group Galaxies - An IntroductionSymposium - International Astronomical Union, 1999
- A Catalog of Parameters for Globular Clusters in the Milky WayThe Astronomical Journal, 1996