M. AjelloA. AlbertW. B. AtwoodG. BarbielliniD. BastieriK. BechtolR. BellazziniE. BissaldiR. D. BlandfordE. D. BloomR. BoninoE. BottaciniT. J. BrandtJ. BregeonP. BruelR. BuehlerS. BusonG. A. CaliandroR. A. CameronR. CaputoM. CaragiuloP. A. CaraveoC. CecchiA. ChekhtmanJ. ChiangG. ChiaroS. CipriniJ. Cohen-TanugiL. R. CominskyJ. ConradS. CutiniF. D'AmmandoA. De AngelisF. De PalmaR. DesianteL. Di VenereP. S. DrellC. FavuzziE. C. FerraraP. FuscoF. GarganoD. GasparriniN. GigliettoP. GiommiF. GiordanoM. GirolettiT. GlanzmanG. GodfreyG. A. Gomez-VargasI. A. GrenierS. GuiriecM. GustafssonA. K. HardingJ. W. HewittA. B. HillD. HoranT. JoglerG. JóhannessonA. S. JohnsonT. KamaeC. KarwinJ. KnödlsederM. KussS. LarssonL. LatronicoJ. LiL. LiF. LongoF. LoparcoM. N. LovelletteP. LubranoClemson UniversityKavli Institute for Particle Astrophysics and CosmologySanta Cruz Institute for Particle PhysicsIstituto Nazionale di Fisica Nucleare, RomaUniversita degli Studi di TriesteIstituto Nazionale Di Fisica Nucleare, Sezione di PadovaUniversità degli Studi di PadovaUniversity of Wisconsin MadisonIstituto Nazionale Di Fisica Nucleare, Sezione di PisaUniversità degli Studi di TorinoNASA Goddard Space Flight CenterLaboratoire Univers et Particules de MontpellierLaboratoire Leprince-RinguetDeutsche Elektronen-SynchrotronConsorzio Interuniversitario per la Fisica Spaziale (CIFS)INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, MilanUniversita degli Studi di PerugiaGeorge Mason University, Fairfax CampusAgenzia Spaziale ItalianaOsservatorio Astronomico di RomaSonoma State UniversityStockholms universitetOskar Klein Centre for Cosmoparticle PhysicsKungl. VetenskapsakademienIstituto Di Radioastronomia, BolognaAlma Mater Studiorum Università di BolognaUniversita degli Studi di UdineUniversità degli Studi di Napoli Federico IIUniversità degli Studi di BariPontificia Universidad Católica de ChileInstitut de Recherche sur les Lois Fondamentales de l'UniversUniversität GöttingenUniversity of North FloridaUniversity of SouthamptonUniversity Science Institute ReykjavikUniversity of TokyoUniversity of California, IrvineCNRS Centre National de la Recherche ScientifiqueUniversite de ToulouseThe Royal Institute of Technology (KTH)Universitat Autònoma de BarcelonaNaval Research LaboratoryUniversity of MarylandMahidol UniversityHiroshima UniversityUniversity of DenverMax Planck Institut fur Physik (Werner-Heisenberg-Institut)The University of Hong KongMedizinische Universitat Innsbruck2018-12-112019-03-142018-12-112019-03-142016-03-01Astrophysical Journal. Vol.819, No.1 (2016)153843570004637X2-s2.0-84960950940https://repository.li.mahidol.ac.th/handle/20.500.14594/43600© 2016. The American Astronomical Society. All rights reserved. The Fermi Large Area Telescope (LAT) has provided the most detailed view to date of the emission toward the Galactic center (GC) in high-energy γ-rays. This paper describes the analysis of data taken during the first 62 months of the mission in the energy range 1-100 GeV from a 15° × 15° region about the direction of the GC. Specialized interstellar emission models (IEMs) are constructed to enable the separation of the γ-ray emissions produced by cosmic ray particles interacting with the interstellar gas and radiation fields in the Milky Way into that from the inner ∼1 kpc surrounding the GC, and that from the rest of the Galaxy. A catalog of point sources for the 15° × 15° region is self-consistently constructed using these IEMs: the First Fermi-LAT Inner Galaxy Point Source Catalog (1FIG). The spatial locations, fluxes, and spectral properties of the 1FIG sources are presented, and compared with γ-ray point sources over the same region taken from existing catalogs. After subtracting the interstellar emission and point-source contributions a residual is found. If templates that peak toward the GC are used to model the positive residual the agreement with the data improves, but none of the additional templates tried account for all of its spatial structure. The spectrum of the positive residual modeled with these templates has a strong dependence on the choice of IEM.Mahidol UniversityEarth and Planetary SciencesFERMI-LAT OBSERVATIONS of HIGH-ENERGY γ-RAY EMISSION TOWARD the GALACTIC CENTERArticleSCOPUS10.3847/0004-637X/819/1/44