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termdefinitionlinks
BA(burst advocate)
BAs are LAT team members who keep an eye on gamma-ray burst (GRB) activity.
The GRB group has automatic software to check if the LAT detected statistically significant emission from GRBs.
The BA's job is to check the output from the software and alert the rest of the group.
BAs are on duty for a week at a time. 		BA Confluence page
back  
back-converting  
batch / batch farm  
BGO

(bismuth germanate detector)
The Gamma-ray Burst Monitor (GBM), the second instrument on Fermi, is made of 2 BGO detectors (and 12 NaI ones).
The BGOs detect photons between 200 keV and 40 MeV.
They are positioned on opposite sides of the satellite.

 
blazar  
BL Lac  
boresight  
   

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C&A (group)(Calibration and Analysis)C&A group page
CAL(Calorimeter) 
cat. / Cat.(category)
Papers written by the LAT collaboration are assigned a category out of I, II, and III. 		category explanation
catalog LAT catalogs
Catalog (group) Catalog group page
clean (event class)  
CR(cosmic ray) 
CTB  
   
   
   

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nadir  
nadir observations  
NaI

(sodium iodide)
The Gamma-ray Burst Monitor (GBM), the second instrument on Fermi, is made of 12 NaI detectors (and 2 BGO ones).
The NaIs detect photons between ~8 keV and 40 1 MeV.
They are positioned around the spacecraft to view the entire sky at all times.
The GBM team uses the amount of signal in each NaI detector to calculate localizations. 

 
   

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P

termdefinitionlink
Pass #, version #  
phi  
pipeline  
pointed observations  
pole pointing  
PSF(point-spread function) 
PSR(pulsar)Pulsar group page
PWN(pulsar wind nebula) 
   

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