Termin:
25.07.2011 16:00
Ort:
Stefan-Meyer-Institut für subatomare Physik
Boltzmanngasse 3
1090 Wien
Kontakt:
Fiona-Franziska Bös
Stefan-Meyer-Institut für subatomare Physik
Österreichische Akademie der Wissenschaften (ÖAW)
Boltzmanngasse 3
1090 Wien
T + 43 1 427729701
fiona.boes@oeaw.ac.at
www.oeaw.ac.at/smi/
Through a Universe darkly
Virginia Trimble University of California, Irvine and Las Cumbres Observatory
Both the concept and the name dark matter are considerably older than most scientists realize. The talk will begin with a surprising conclusion - that much of the evidence was already in place before World War II – and then back up to look at some early ideas and candidates, the gradual accumulation of data, and a paradigm shift in favor of dark matter as an important, new part of the universe. The second half will focus on an enormous number of relatively modern candidates and the winnowing of these down to a favored few, in light of both new calculations and new observations. Current study of dark matter is somewhat disjoint, between the particle physicists and astrophysicists, who really want to know where the particles (or whatever) fit into, or outside a standard model and cosmologists and astrophysicists, who are primarily concerned with using DM as a matrix upon which to build and evolve galaxies and clusters.
