UMBC logo
UMBC Department of Physics
News & Events

About

This page contains a single entry from the blog posted on September 17, 2008 6:27 PM.

The previous post in this blog was Seminar: Wednesday, September 10, 2008 at 3:30pm.

The next post in this blog is Seminar: Wednesday, September 24, 2008 at 3:30pm.

Many more can be found on the main index page or by looking through the archives.

Powered by
Movable Type 3.34

« Seminar: Wednesday, September 10, 2008 at 3:30pm | Main | Seminar: Wednesday, September 24, 2008 at 3:30pm »

Seminar: Wednesday, September 17, 2008 at 3:30pm

How much light was produced since the Universe was born? Finally, a way to measure it.
Dr. Markos Georganopoulos
Department of Physics, UMBC

The extragalactic background light (EBL) that permeates the Universe in the optical-IR is essentially an integral of the light produced from the time the first stars were formed in our Universe until now. As such, it is a quantity that is very closely connected to the galaxy/ large scale structure formation in our Universe. Unfortunately, measuring the EBL has been proven practically impossible, for very simple reasons that I will discuss in the first part of my talk. Luckily, we found an unexpected, parameter-free way to break the deadlock of measuring the EBL with GLAST, NASA's new gamma-ray satellite. This will be the second part of my talk. GLAST measurements are underway and the determination will take about two years.


Location: Physics Bldg., Room 401
Coffee: 3:15 p.m.

UMBC's Department of Physics   |   410-455-2513 or 1-877-707-1969 (toll free)   |   physics@umbc.edu  |  Site Info