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.

Data e Risorse

Campo Valore
accessLevel public
accrualPeriodicity irregular
bureauCode {026:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier NASA-0000227
issued 2018-06-25
landingPage https://data.nasa.gov/dataset/lat-background-models
modified 2025-04-23
programCode {026:014}
publisher National Aeronautics and Space Administration
resource-type Dataset
source_datajson_identifier true
source_hash ca488f2455eecdd26c3238f7e487586464cf8639dc2969c83e498b803058e5e0
source_schema_version 1.1
theme {"Space Science"}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • acd
  • balloon
  • bursts
  • cgro
  • compton
  • egret
  • energy
  • fermi
  • gamma
  • gamma-ray
  • glast
  • glast-ssc
  • gro
  • gssc
  • high-energy
isopen False
license_id notspecified
license_title License not specified
maintainer Phil Newman
maintainer_email panewman@lheapop.gsfc.nasa.gov
metadata_created 2025-09-24T21:45:10.986928
metadata_modified 2025-09-24T21:45:10.986938
notes 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.
num_resources 1
num_tags 23
title LAT Background Models