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LAT Background Models
The Galactic model is a spatial and spectral template. The model for the Galactic diffuse emission was developed using spectral line surveys of HI and CO (as a tracer of H2) to derive the distribution of interstellar gas in Galactocentric rings. Infrared tracers of dust column density were used to correct column densities in directions where the optical depth of HI was either over or under-estimated. The model of the diffuse gamma-ray emission was then constructed by fitting the gamma-ray emissivities of the rings in several energy bands to the LAT observations.
Complete Metadata
| bureauCode |
[ "026:00" ] |
|---|---|
| identifier | NASA-0000227 |
| issued | 2018-06-25 |
| landingPage | https://data.nasa.gov/dataset/lat-background-models |
| programCode |
[ "026:014" ] |
| theme |
[ "Space Science" ] |
