Dark Matter Mysteries and Galaxy Evolution – Dr. Tommaso Treu

(March 15, 2011)  According to our current understanding, most of the mass of the universe is in the form of a mysterious substance, known as dark matter, that does not emit or absorb light. We do not know what dark matter is made of, but we see it manifest itself at astronomical scales through its gravitational effects. Although the cosmological model based on dark matter works quite well on very large scales, there appears to be tension at subgalactic scales, where dark matter interacts with regular matter. Professor Treu will present his research on this shadowy component of the cosmos and discuss some intriguing questions in dark matter cosmology.

Transcript

Filter

Filter by year OR type:

View all

Twitter

#CosmicCoin Can you find the trackable Cosmic Coin Geocache in this wall? (Or the wall?) pic.twitter.com/sqHPN8YFbV
Observers from CIT will use LRIS-ADC on Keck 1, while on Keck 2, CIT-Y observers will use DEIMOS. Sun set 06:28:00pm rise 06:01:00am
NASA mission led by CU-Boulder achieves Martian orbit Sept. 21 | University of Colorado Boulder bit.ly/1uySzgs
On Keck 1, we have CIT observers using LRIS-ADC. On Keck 2, we have Yale observers using DEIMOS. Sun set 06:29:00pm rise 06:01:00am