Accurate Internal Proper Motions in the Globular Cluster 47 Tucanae

Details Accurate Internal Proper Motions in the Globular Cluster 47 Tucanae Accurate Internal Proper Motions in the Globular Cluster 47 Tucanae

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997hst..prop.7993k&link_type=abstract

HST Proposal ID #7993

Astronomy and Astrophysics

Astrophysics

Hst Proposal Id #7993 Stellar Astrophysics

Scientific paper

We will measure internal proper motions of stars in 47 Tuc to an unprecedentedly high accuracy--error per star about 1/5 of the internal velocity dispersion in the cluster. In addition to images already secured by Meylan in 1995 and 1997 {GO-5912, 6467}, we will use archival images going back to 1991, which will greatly increase the overall accuracy. We demonstrate herein our ability to measure accurate proper motions from both WFPC-1 and WFPC2 material. The dispersion of proper motions, when compared with the known dispersion in radial velocities, will yield a far more accurate distance for the cluster than has been available until now.

Affiliated with

Also associated with

No associations

Rating

Accurate Internal Proper Motions in the Globular Cluster 47 Tucanae does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Accurate Internal Proper Motions in the Globular Cluster 47 Tucanae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Accurate Internal Proper Motions in the Globular Cluster 47 Tucanae will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-896529