University of Maryland
Atlantic Building, Room 2400
4:30 PM Monday, May 18, 2009
Coffee, Tea & Snacks 4:15-4:30 PM

Alexander Moiseev
CRESST/NASA Goddard Space Flight Center and University of Maryland
First results on the high energy cosmic ray electron spectrum from Fermi LAT

Designed as a high-sensitivity gamma-ray observatory, the Fermi Large Area Telescope is also an electron detector with a large acceptance exceeding 2 m2 sr at 300 GeV. Building on the gamma-ray analysis, we have developed an efficient electron detection strategy which provides sufficient background rejection for the measurement of the electron spectrum up to 1 TeV. Our high precision data show that the electron spectrum falls with energy as E-3.04 and does not exhibit prominent spectral feature. Analysis approach and details along with some possible interpretation will be presented

Sponsored by: Department of Physics and the Institute for Physical Science and Technology, University of Maryland. For information call Catha Stewart at (301) 405-4811 or go to the UMD Space Physics group seminar web site.

There is free parking after 4:00 PM in lot B (the big parking garage across the street from the ATL building). There are a limited number of spaces in lot Q next to the new ATL wing with free parking after 4PM even when there is a basketball game on campus.