Astronomy and Astrophysics – Astronomy
Scientific paper
May 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21610301c&link_type=abstract
American Astronomical Society, AAS Meeting #216, #103.01; Bulletin of the American Astronomical Society, Vol. 41, p.853
Astronomy and Astrophysics
Astronomy
Scientific paper
The last decades have been a remarkable time for cosmology. We now have an testable model for the origin and evolution of the universe from its first instants to the present day. The model contains some remarkable components about which we know very little. Baryonic matter accounts for only a few percent of the make-up of the universe, dark matter accounts for roughly a quarter, and the dominant component is the mysterious dark energy which is causing the expansion of the universe to accelerate. The model starts with a period of inflation from quantum fluctuations at extremely high energy and leads eventually to all the splendid structure around us today. Much of the model has been determined from measurements of the cosmic microwave background (CMB) radiation. After a brief review of the field, this talk will focus on new CMB measurements being pursued to test the model and to investigate the origin and evolution of the universe.
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