Series: SPECIAL ANNOUNCEMENT: Physics Colloquium
Date: Tuesday 15-Sep-2009
Time: 16:00-17:00 (4:00-5:00 pm)
Location: Physics 1410
Speaker: Prof. Stacy McGaugh (UMD)
Title: "Gravity and Dark Matter in the Universe"
Astronomical observations now constrain the parameters of cosmology to unprecedented precision. Many lines of evidence indicate the presence of a novel form of non-baryonic dark matter that permeates the cosmos and outweighs normal baryonic matter by roughly 5:1. As yet, there is no persuasive laboratory detections of these hypothesized dark matter particles. An alternative hypothesis is that instead of dark matter, fundamental duynamical laws need revision at very low accelerations. I will discuss the evidence for and against these ideas. Physics Colloquiua are preceded by light refreshments at 3:30pm.
Colloquia are usually preceded by espresso and ice cream at 1:45 pm in the first floor lobby of the Astronomy Department and followed by an informal reception in room CSS 0254. Anyone interested in having lunch or talking with the speaker should contact the colloquium organizer given 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.
Colloquium Organizer:
Prof. Richard Mushotzky
SPECIAL ACCOMMODATIONS:
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.
