BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Proper-Motion Studies of Galactic Globular Clusters - Laura Watkin
 s (ESO)
DTSTART:20190228T160000Z
DTEND:20190228T170000Z
UID:TALK118426@talks.cam.ac.uk
CONTACT:28811
DESCRIPTION:Globular clusters (GCs) are old\, collisional systems so the s
 tars inside\nthem interact on short timescales and have had a very long ti
 me in which to\ndo so. These many and frequent interactions significantly 
 affect both the\nstructural and kinematic properties of GCs\, so by studyi
 ng their structure\nand kinematics we can learn about their evolution.\n\n
 Some effects manifest as anisotropy in the velocity distributions\, which\
 nrequire at least two (but preferably three) components of velocity\ninfor
 mation\, and can only be seen with proper motion data. The Hubble Space\nT
 elescope and Gaia are highly complementary: HST has the depth to provide\n
 kinematics for a wide range of stellar masses\, while Gaia has the spatial
 \ncoverage to study changes across the whole cluster all the way out to it
 s\nedges.\n\nIn my talk\, I will focus on what we are learning about GCs f
 rom analysis of\ntheir kinematics using existing data\, particularly prope
 r motions from HST\nand Gaia. I will also discuss the advances that curren
 t and future\ntelescopes will enable.\n
LOCATION:Sackler Lecture Theatre\, IoA (tea at 3:30 pm)
END:VEVENT
END:VCALENDAR