Internal kinematics of globular clusters

Speaker: 
Andrea Bellini (Space Telescope Science Institute)
Event Date and Time: 
Mon, 2018-09-24 15:00 - 16:00
Location: 
Hennings 318
Local Contact: 
Hervey Richer
Intended Audience: 
Undergraduate

With the advent of the Gaia mission, astrometry is experiencing a renaissance. Although Gaia will make important breakthroughs in many different areas, stars in the crowded central fields of globular clusters and at the faint end of the color-magnitude diagram are out of Gaia's reach. However, the stable environment of space makes the Hubble Space Telescope (HST) an excellent astrometric tool.  Its diffraction-limited resolution allows it to distinguish and measure positions and brightnesses for faint stars all the way to the center of most globular clusters. I will present recent results from our HST-based, high-precision proper-motion analysis of Galactic globular clusters, with particular focus on kinematic differences among their multiple stellar populations.

Website development by Checkmark Media. Designed by Armada.

a place of mind, The University of British Columbia

Faculty of Science
Department of Physics and Astronomy
6224 Agricultural Road
Vancouver, BC V6T 1Z1
Tel 604.822.3853
Fax 604.822.5324

Emergency Procedures | Accessibility | Contact UBC | © Copyright The University of British Columbia