University of Maryland at College Park
Department of Astronomy
PHYSICS COLLOQUIM

The coupling of baryons and photons by Thomson scattering in the early universe leads to a rich structure in the power spectra of the cosmic microwave background photons and the matter. The study of the former has revolutionized cosmology and allowed precise measurement of a host of important cosmological parameters. The study of the latter is still in its infancy, but holds the potential to constrain the nature of the dark energy believed to be causing the accelerated expansion of the universe. I will discuss how we can measure this cosmic sound, and the theoretical developments that need to be made before we can realize the promise of future experiments.

Colloquia are usually preceded by coffee and followed by an informal reception (both in room CSS 0254). Anyone interested in having lunch or talking with the speaker should contact either of the colloquium coordinators (see below). The hour immediately after lunch will normally be reserved for the speaker to talk to graduate students. Students are urged to contact the coordinator to arrange this.

Request colloquia announcements by e-mail: coll-request@astro.umd.edu
Colloquium Organizer: Andrew Wilson (301) 405-1519

Special accommodations for individuals with disabilities can be made by calling (301) 405-3001. It would be appreciated if we are notified at least one week in advance.

PARKING ON CAMPUS:

Parking for visitors is available in the Cashier-Attended Parking Lot at the intersection of Paint Branch & Technology Drive. It is a 5-10 minute walk from the parking lot to the Computer & Space Sciences building.

There are a limited number of parking meters in Lot DD; there are no parking meters in Parking Garage 2. Parking at non-metered spaces in Lot DD and PG2 is free after 4 pm and on weekends.

More information is available from the Department of Campus Parking.

Department of Astronomy, University of Maryland College Park, MD 20742-2421 Phone: (301) 405-3001    FAX: (301) 314-9067 Comments and questions may be directed to webmaster@astro.umd.edu This page was automatically generated on: 11-Feb-2008.