Events at Physics |
Events During the Week of July 13th through July 20th, 2008
Monday, July 14th, 2008
- No events scheduled
Tuesday, July 15th, 2008
- Special Astronomy Talk
- Secrets from the Stellar Nursery
- Time: 12:00 pm
- Place: 6515 Sterling Hall
- Speaker: Alison Sills, McMaster University
- Abstract: Globular clusters are some of the simplest objects in the universe. For this reason, they are fundamental test beds to understand star formation and evolution in much more complex systems like galaxies. Globular clusters are spherical clusters of hundreds of thousands of stars, all of which were formed at the same time, in the same place and from the same material. They are old, and have been passively evolving for almost the age of the universe. They are quite beautiful, and also rather boring. Or so generations of astronomical students have been taught until a few years ago. I will present evidence that these ancient objects have been keeping secrets from us, and that the events in their stellar nurseries were not quite as simple as we had thought. There is increasing evidence that there is more than one stellar generation in globular clusters - not just a single "baby boom", but a complex interplay of stellar birth, death, and rebirth. I will then discuss some of the implications of, and problems with, this new scenario.
- Host: Professor Bob Mathieu
Wednesday, July 16th, 2008
- No events scheduled
Thursday, July 17th, 2008
- No events scheduled
Friday, July 18th, 2008
- No events scheduled