CGRO GLAST

BATSE Spectroscopy Detector Observations of GRB MeV Emissions

Michael S. Briggs,

Geoffrey Pendleton,

Robert Preece,

Valerie Connaughton,

Marc Kippen

M. S. Briggs The First GLAST Symposium, 2007 February 7 2

CGRO GLAST

M. S. Briggs The First GLAST Symposium, 2007 February 7 3

CGRO GLAST

• Advantages:– Wide FOV observe many bright GRBs,– Wide Energy Range with detectors of the same type.

• GRB Selection Criterion:

– 50 to 300 keV Fluence > 2.5E-5 ergs cm2,– Observed with both high-gain and low-gain SD,– Data coverage for > 80% of the fluence,– High-gain SD has source angle < 80,– Low-gain SD has source angle < 60.

M. S. Briggs The First GLAST Symposium, 2007 February 7 4

CGRO GLAST

M. S. Briggs The First GLAST Symposium, 2007 February 7 5

CGRO GLAST

M. S. Briggs The First GLAST Symposium, 2007 February 7 6

CGRO GLAST

M. S. Briggs The First GLAST Symposium, 2007 February 7 7

CGRO GLAST

M. S. Briggs The First GLAST Symposium, 2007 February 7 8

CGRO GLAST

M. S. Briggs The First GLAST Symposium, 2007 February 7 9

CGRO GLAST

M. S. Briggs The First GLAST Symposium, 2007 February 7 10

CGRO GLAST

M. S. Briggs The First GLAST Symposium, 2007 February 7 11

CGRO GLAST

M. S. Briggs The First GLAST Symposium, 2007 February 7 12

CGRO GLAST

M. S. Briggs The First GLAST Symposium, 2007 February 7 13

CGRO GLAST

GRBs normed to 50-300 keV fluence of 1E-5.

M. S. Briggs The First GLAST Symposium, 2007 February 7 14

CGRO GLAST

GRBs normed to 50-300 keV fluence of 1E-5.

M. S. Briggs The First GLAST Symposium, 2007 February 7 15

CGRO GLAST

GRBs normed to 50-300 keV fluence of 1E-5.