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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-2837
DTSTART:20121022T170000Z
DTEND:20121022T180000Z
DTSTAMP:20240328T173844Z
LAST-MODIFIED:20121017T131905Z
LOCATION:4421 Sterling Hall
SUMMARY:Cores\, anisotrophy and (complex) rotation: the (Classical) dw
arf Spheroidals\, Special Lunch Astronomy Talk\, Nicola Amorisco\, Uni
versity of Copenhagen
DESCRIPTION:
\n
\nThe presence of multiple stellar populations
in dwarf Spheroidals has proved to be the key to advancing our unders
tanding of their dynamical state\, dark matter content\, and evolution
ary history. Chemo-dynamical methods use both metallicity and kinemati
cal information from discrete spectroscopic samples to identify and di
sentangle any distinct sub-populations. These are then fed to dynamica
l analyses\, which greatly benefit from the independent constraints en
forced by different sub-populations. I'll review some recent results o
n the subject and report on the evidence for a large dark matter core
in both the Sculptor and Fornax dwarf Spheroidals\, on an attempt to c
haracterize directly the orbital structure of these systems\, and on t
he detection of a complex chemo-rotational pattern in the Fornax dwarf
.
URL:https://www.physics.wisc.edu/events/?id=2837
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