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Observations of galaxies out to z~5 in the Hubble Ultra Deep Field reveal unusual clumpy morphologies in addition to spirals and ellipticals. These high redshift galaxies are mostly starburst systems, with star-forming regions 1000 times more massive than in today's galaxies. Many of the clumpy galaxies have thick disks that are half the size of local galaxies and lack bulges and exponential disks; they may grow through merging and accretion, and evolve into today's spirals when the star-forming clumps migrate to the centers or dissolve. Transitions are seen at z~1, when the universe was half its present age.
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 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:
07-Jan-2008.
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