ACKERMANN, M.; AJELLO, M.; BALDINI, L.; BALLET, J.; BARBIELLINI, G.; BASTIERI, D.; BELLAZZINI, R.; BISSALDI, E.; BLOOM, E.D.; BONINO, R.; BOTTACINI, E.; BRANDT, T.J.; BREGEON, J.; BRUEL, P.; BUEHLER, R.; CAMERON, R.A.; CARAGIULO, M.; CARAVEO, P.A.; CASTRO, D.; CAVAZZUTI, E.; CECCHI, C.; CHARLES, E.; CHEKHTMAN, A.; CHEUNG, C.C.; CHIARO, G.; CIPRINI, S.; COHEN, J.M.; COSTANTIN, D.; COSTANZA, F.; CUTINI, S.; D'AMMANDO, F.; DE PALMA, F.; DESIANTE, R.; DIGEL, S.W.; DI LALLA, N.; DI MAURO, M.; DI VENERE, L.; FAVUZZI, C.; FEGAN, S.J.; FERRARA, E.C.; FRANCKOWIAK, A.; FUKAZAWA, Y.; FUNK, S.; FUSCO, P.; GARGANO, F.; GASPARRINI, D.; GIGLIETTO, N.; GIORDANO, F.; GIROLETTI, M.; GREEN, D.; GRENIER, I.A.; GRONDIN, M.-H.; GUILLEMOT, Lucas; GUIRIEC, S.; HARDING, A.K.; HAYS, E.; HEWITT, J.W.; HORAN, D.; HOU, X.; JÓHANNESSON, G.; KAMAE, T.; KUSS, M.; LA MURA, G.; LARSSON, S.; LEMOINE-GOUMARD, M.; LI, J.; LONGO, F.; LOPARCO, F.; LUBRANO, P.; MAGILL, J.D.; MALDERA, S.; MALYSHEV, D.; MANFREDA, A.; MAZZIOTTA, M.N.; MICHELSON, P.F.; MITTHUMSIRI, W.; MIZUNO, T.; MONZANI, M.E.; MORSELLI, A.; MOSKALENKO, I.V.; NEGRO, M.; NUSS, E.; OHSUGI, T.; OMODEI, N.; ORIENTI, M.; ORLANDO, E.; ORMES, J.F.; PALIYA, V.S.; PANEQUE, D.; PERKINS, J.S.; PERSIC, M.; PESCE-ROLLINS, M.; PETROSIAN, V.; PIRON, F.; PORTER, T.A.; PRINCIPE, G.; RAINÒ, S.; RANDO, R.; RAZZANO, M.; RAZZAQUE, S.; REIMER, A.; REIMER, O.; REPOSEUR, T.; SGRÒ, C.; SIMONE, D.; SISKIND, E.J.; SPADA, F.; SPANDRE, G.; SPINELLI, P.; SUSON, D.J.; TAK, D.; THAYER, J.B.; THOMPSON, D.J.; TORRES, D.F.; TOSTI, G.; TROJA, E.; VIANELLO, G.; WOOD, K.S.; WOOD, M.

doi:10.3847/1538-4357/aa775a

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Astrophys.J.. 2017, vol. 843, n° 2, p. 139

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The spatial extension of a γ-ray source is an essential ingredient to determine its spectral properties, as well as its potential multiwavelength counterpart. The capability to spatially resolve γ-ray sources is greatly improved by the newly delivered Fermi-Large Area Telescope (LAT) Pass 8 event-level analysis, which provides a greater acceptance and an improved point-spread function, two crucial factors for the detection of extended sources. Here, we present a complete search for extended sources located within 7° from the Galactic plane, using 6 yr of Fermi-LAT data above 10 GeV. We find 46 extended sources and provide their morphological and spectral characteristics. This constitutes the first catalog of hard Fermi-LAT extended sources, named the Fermi Galactic Extended Source Catalog, which allows a thorough study of the properties of the Galactic plane in the sub-TeV domain.< Réduire

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catalogs

gamma rays: general

galaxy

gamma ray

spectral

acceptance

GLAST

gamma ray: energy spectrum

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Search for Extended Sources in the Galactic Plane Using Six Years of $Fermi$-Large Area Telescope Pass 8 Data above 10 GeV

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