%0 Journal Article
%T Fermi LAT Observation of Diffuse Gamma-Rays Produced Through Interactions between Local Interstellar Matter and High Energy Cosmic Rays
%+ Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112))
%+ Laboratoire Leprince-Ringuet (LLR)
%+ Laboratoire de Physique Théorique et Astroparticules (LPTA)
%+ Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG)
%+ Centre d'étude spatiale des rayonnements (CESR)
%A Abdo, Aous A.
%A Ackermann, Markus
%A Ajello, Marco
%A B. Atwood, W.
%A Axelsson, Magnus
%A Baldini, Luca
%A Ballet, Jean
%A Barbiellini, Guido
%A Bastieri, D.
%A Baughmann, B.M.
%A Bechtol, K.
%A Bellazzini, R.
%A Berenji, B.
%A Bloom, E.D.
%A Bonamente, E.
%A Borgland, A.W.
%A Bregeon, J.
%A Brez, A.
%A Brigida, M.
%A Bruel, Pascal
%A Burnett, T.H.
%A A. Caliandro, G.
%A A. Cameron, R.
%A Caraveo, P. A.
%A Carlson, P.
%A Casandjian, J.M.
%A Cecchi, C.
%A Celik, O.
%A Chekhtman, A.
%A Cheung, C.C.
%A Ciprini, S.
%A Claus, R.
%A Cohen-Tanugi, J.
%A Conrad, J.
%A Cutini, S.
%A Dermer, C.D.
%A de Angelis, A.
%A de Palma, F.
%A Digel, S.W.
%A Do Couto E Silva, E.
%A Drell, P.S.
%A Dubois, R.
%A Dumora, D.
%A Farnier, C.
%A Favuzzi, C.
%A Fegan, S.J.
%A Focke, W.B.
%A Frailis, M.
%A Fukazawa, Y.
%A Funk, S.
%A Fusco, P.
%A Gargano, F.
%A Gasparrini, D.
%A Gehrels, N.
%A Germani, S.
%A Giebels, B.
%A Giglietto, N.
%A Giordano, F.
%A Glanzman, T.
%A Godfrey, G.
%A Grenier, I.A.
%A Grondin, M.-H.
%A Grove, J.E.
%A Guillemot, L.
%A Guiriec, S.
%A Hamada, N.
%A Harding, A.K.
%A Hayashida, M.
%A Hugues, R.E.
%A Johansson, G.
%A Johnson, A.S.
%A Johnson, R.P.
%A Johnson, W.N.
%A Kamae, T.
%A Katagiri, H.
%A Kawai, N.
%A Kerr, M.
%A Knödlseder, Jürgen
%A Kocian, M. L.
%A Kuehn, F.
%A Kuss, M.
%A Lande, J.
%A Latronico, L.
%A Lemoine-Goumard, M.
%A Longo, F.
%A Loparco, F.
%A Lott, B.
%A Lovellette, M.N.
%A Lubrano, P.
%A Makeev, A.
%A Mazziotta, M.N.
%A Mcenery, J.E.
%A Meurer, C.
%A Michelson, P.F.
%A Mitthumsiri, W.
%A Mizuno, T.
%A Moiseev, A.A.
%A Monte, C.
%A Monzani, M.E.
%A Morselli, A.
%A Moskalenko, I.V.
%A Murgia, S.
%A Nolan, P.L.
%A Norris, J.P.
%A Nuss, E.
%A Ohsugi, T.
%A Okumura, A.
%A Omodei, N.
%A Orlando, E.
%A Ormes, J.F.
%A Ozaki, M.
%A Paneque, D.
%A Panetta, J.H.
%A Parent, D.
%A Pepe, M.
%A Pesce-Rollins, M.
%A Piron, F.
%A Pohl, M.
%A Porter, T. A.
%A Rainò, S.
%A Rando, R.
%A Razzano, M.
%A Reimer, A.
%A Reimer, O.
%A Reposeur, T.
%A Ritz, S.
%A Rochester, L. S.
%A Rodriguez, A. Y.
%A Ryde, F.
%A Sadrosinski, H.F-W.
%A Sanchez, D.
%A Sander, A.
%A Parkinson, P. M. Saz
%A Schalk, T.L.
%A Sellerholm, A.
%A Sgro, G.
%A Smith, D.A.
%A Smith, P.D.
%A Spandre, G.
%A Spinelli, P.
%A Starck, Jean-Luc
%A Stecker, F. W.
%A Strickman, M. S.
%A Strong, A.W.
%A Suson, D. J.
%A Tajima, H.
%A Takahashi, H.
%A Takahashi, T.
%A Tanaka, T.
%A Thayer, J.B.
%A Thayer, J.G.
%A Thompson, D.J.
%A Tibaldo, L.
%A Torres, D. F.
%A Tosti, G.
%A Tramacere, A.
%A Uchiyama, Y.
%A Usher, T. L.
%A Vasileiou, V.
%A Vilchez, N.
%A Vitale, V.
%A Waite, A. P.
%A Wang, P.
%A Winer, B. L.
%A Wood, K. S.
%A Ylinen, T.
%A Ziegler, M.
%< avec comité de lecture
%@ 0004-637X
%J The Astrophysical Journal
%I American Astronomical Society
%V 703
%P 1249-1256
%8 2009-10-01
%D 2009
%Z 0908.1171
%R 10.1088/0004-637X/703/2/1249
%K cosmic rays
%K diffuse radiation
%K gamma rays: observations
%Z Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]
%Z Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]Journal articles
%X Observations by the Large Area Telescope (LAT) on the \textit{Fermi} mission of diffuse $\gamma$-rays in a mid-latitude region in the third quadrant (Galactic longitude $l$ from $200\arcdeg$ to $260\arcdeg$ and latitude $| b |$ from $22\arcdeg$ to $60\arcdeg$) are reported. The region contains no known large molecular cloud and most of the atomic hydrogen is within 1 kpc of the solar system. The contributions of $\gamma$-ray point sources and inverse Compton scattering are estimated and subtracted. The residual $\gamma$-ray intensity exhibits a linear correlation with the atomic gas column density in energy from 100 MeV to 10 GeV. The measured integrated $\gamma$-ray emissivity is $(1.63 \pm 0.05) \times 10^{-26} {\rm photons s^{-1} sr^{-1} H\mathchar`-atom^{-1}}$ and $(0.66 \pm 0.02) \times 10^{-26} {\rm photons s^{-1} sr^{-1} H\mathchar`-atom^{-1}}$ above 100 MeV and above 300 MeV, respectively, with additional systematic error of $\sim 10%$. The differential emissivity in 100 MeV--10 GeV agrees with calculations based on cosmic ray spectra consistent with those directly measured, at the 10% level. The results obtained indicate that cosmic ray nuclei spectra within 1 kpc from the solar system in regions studied are close to the local interstellar spectra inferred from direct measurements at the Earth within $\sim 10%$.
%G English
%L in2p3-00429043
%U https://hal.in2p3.fr/in2p3-00429043
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