Stellar dynamics and proper motions in 47Tuc

DOI

We have used HST imaging of the central regions of the globular cluster 47 Tucanae (=NGC 104), taken with the WFPC2 and ACS instruments between 1995 and 2002, to derive proper motions and U- and V-band magnitudes for 14366 stars within 100 (about 5 core radii) of the cluster center. This represents the largest set of member velocities collected for any globular cluster. The stars involved range in brightness from just fainter than the horizontal branch of the cluster to more than 2.5mag below the main-sequence turnoff. In the course of obtaining these kinematic data, we also use a recent set of ACS images to define a list of astrometrically calibrated positions (and F475W magnitudes) for nearly 130000 stars in a larger, 3x3 central area. We describe our data reduction procedures in some detail and provide the full position, photometric, and velocity data.

Cone search capability for table J/ApJS/166/249/table3 (Stars used for astrometric calibration, and the resulting cluster center point/star)

Cone search capability for table J/ApJS/166/249/table4 (129733 stars in the Master Frame)

Cone search capability for table J/ApJS/166/249/table5 (Proper motions and displacement data for 14366 stars)

Identifier
DOI http://doi.org/10.26093/cds/vizier.21660249
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJS/166/249
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/166/249
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/166/249
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJS/166/249
Provenance
Creator McLaughlin D.E.; Anderson J.; Meylan G.; Gebhardt K.; Pryor C.; Minniti D.,Phinney S.
Publisher CDS
Publication Year 2008
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Galactic and extragalactic Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy