10 Questions
What is the purpose of assuming a source position for the GRB in the context of mapping incident photon energies?
To generate detector responses and map incident photon energies to observed count energies
Why are NaI detectors used for standard analysis with observing angles less than 60 degrees?
Because the response is reduced beyond 60 degrees
Why is the BGO detector with the smallest viewing angle to the source used in analysis?
Due to its reduced dependence on viewing angle compared to NaI detectors
Why are detectors not used for analysis if portions of the spacecraft or LAT block them from viewing the source?
Due to obstruction affecting detector responses
How is the duration of GRBs typically defined?
By reaching 5% and 95% of the cumulative observed fluence
What is T90 in the context of defining GRB duration?
The time between reaching 5% and 95% of cumulative observed fluence
What is the canonical observing energy range for durations defined by T90?
$50-300$ keV
In terms of duration analysis, what aspect of GRBs is usually considered at 5% and 95% of cumulative observed fluence?
Spectrum
What is the main parameter that defines the duration of a GRB?
T90
How does observing energy range relate to defining the duration of a GRB burst?
It influences how quickly a burst reaches peak intensity and fades out
Explore a quiz on the spectral fitting analysis of GRB 170817A, comparing its parameters with other GRBs in the GBM Burst Catalog and Spectral Catalog. Learn about the peak energy flux and constraints on power-law index and peak energy.
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