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A Clash of Clusters Provides New Clue to Dark Matter
GLAST Lunch - Luigi Costamante
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GLAST Lunch - Troy Porter
| What | GLAST lunch |
|---|---|
| When |
21 August 08 from 12:15 pm to 01:15 pm |
| Where | Kavli building, 2nd Flr Conference Room, Room 222 |
| Contact Name | David Paneque |
| Contact Email | dpaneque@slac.stanford.edu |
| Contact Phone | 650-926-5542 |
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The Gamma-Ray Albedo of the Earth
Looking from orbit, the Earth appears to be the brightest source of gamma
rays. These are produced by cosmic-ray interactions in the atmosphere (a
so-called gamma-ray albedo). This is normally regarded as a background for
observations of astronomical sources. However, for GLAST its observations
provides unique possibilities for checking instrumental parameters
and backgrounds as well as a mission lifetime calibration check.
I will talk about our work modelling the Earth gamma-ray and show an
initial comparison with L&EO data.
MASS: Lance Simms