2026-04-04T19:01:47Zivo://CDS/P/EGRET/Dif/100-1502026-03-04T11:08:16ZHiPSIVOAEGRET Dif 100-150MeV survey collectionThis data presents all-sky maps of diffuse gamma radiation in energy ranges between 100 MeV to 150 MeV, based on data collected by the EGRET instrument on the Compton Gamma Ray Observatory. EGRET detected gamma rays in the energy range from 30 MeV to over 30 GeV, with an energy resolution of 20-25% over most of that range. The instrument is described in Hughes et al. (1980), Kanbach (1988, 1989), Thompson et. al (1993) and Esposito et al. (1998). The work described here started with standard EGRET all-sky maps (ftp://cossc.gsfc.nasa.gov/compton/data/egret/high_level/combined_data) of photon counts, instrument exposure, and gamma-ray intensity, binned in 0.5 degree pixels, in both Galactic and equatorial coordinates. The energy ranges in MeV are: (narrow ranges) 30-50, 50-70, 70-100, 100-150, 150-300, 300-500, 500-1000, 1000-2000, 2000-4000, 4000-10000; (broader ranges) 30-100, 100-300, 300-1000; (integral ranges) >100, >300, >1000.Original acknowledgement for data: This research has made use of data, software and/or web tools obtained from the High Energy Astrophysics Science Archive Research Center (HEASARC), a service of the Astrophysics Science Division at NASA/GSFC and of the Smithsonian Astrophysical Observatory's High Energy Astrophysics DivisionSky surveyGamma-ray astronomyobservational-astronomyhttps://dc.g-vo.org/rr/q/lp/custom/CDS/P/EGRET/Dif/100-150https://alasky.cds.unistra.fr/EGRET/EGRET-dif/EGRET_dif_100-1502005ApJ...621..291CCDSCDS2014This HiPS is distributed under ODbL license by Unistra/CNRShttps://cds.unistra.fr/aladin-org/licences_aladin.htmlCDS Helpdesk <cds-question@unistra.fr>DatasetAstroObjectsastronomy1991-04-15T00:00:00Z1992-11-17T00:00:00Z