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Events in Physics
Title: Cosmology At Low Radio Frequencies: The 21 Cm Transition    (Colloquia)
Start Date: 01/22/2007
Time: 4:30 pm
Location: 1 LeConte Hall
Speaker: Steven Furlanetto
Affiliation: Assistant Professor of Physics, Yale University
Contact Person: Stuart Freedman   (510) 642-3034
Details:

Some of the greatest mysteries remaining in cosmology concern the growth of structure during the cosmic “dark ages” between the last scattering of the cosmic microwave background and the galaxy-dominated era we live in.  Soon a new set of low-frequency radio telescopes will begin probing this era by studying the redshifted hyperfine transition of neutral hydrogen in the intergalactic medium.  I will describe what we hope to learn about the dark ages, the first galaxies, and cosmic “reionization” from these observations, as well as the unique challenges posed by the measurements.