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Anisotropies in the...
Anisotropies in the diffuse gamma-ray background measured by the Fermi LAT
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Ackermann, M. (author)
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Ajello, M. (author)
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Albert, A. (author)
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show more...
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Baldini, L. (author)
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Ballet, J. (author)
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Barbiellini, G. (author)
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Bastieri, D. (author)
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Bechtol, K. (author)
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Bellazzini, R. (author)
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Bloom, E. D. (author)
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Bonamente, E. (author)
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Borgland, A. W. (author)
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Brandt, T. J. (author)
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Bregeon, J. (author)
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Brigida, M. (author)
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Bruel, P. (author)
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Buehler, R. (author)
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Buson, S. (author)
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Caliandro, G. A. (author)
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Cameron, R. A. (author)
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Caraveo, P. A. (author)
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Cecchi, C. (author)
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Charles, E. (author)
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Chekhtman, A. (author)
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Chiang, J. (author)
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Ciprini, S. (author)
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Claus, R. (author)
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Cohen-Tanugi, J. (author)
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- Conrad, Jan (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Cuoco, Alessandro (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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Cutini, S. (author)
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D'Ammando, F. (author)
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de Palma, F. (author)
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Dermer, C. D. (author)
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Digel, S. W. (author)
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do Couto e Silva, E. (author)
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Drell, P. S. (author)
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Drlica-Wagner, A. (author)
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Dubois, R. (author)
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Favuzzi, C. (author)
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Fegan, S. J. (author)
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Ferrara, E. C. (author)
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Fortin, P. (author)
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Fukazawa, Y. (author)
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Fusco, P. (author)
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Gargano, F. (author)
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Gasparrini, D. (author)
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Germani, S. (author)
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Giglietto, N. (author)
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Giroletti, M. (author)
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Glanzman, T. (author)
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Godfrey, G. (author)
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Gomez-Vargas, G. A. (author)
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Gregoire, T. (author)
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Grenier, I. A. (author)
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Grove, J. E. (author)
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Guiriec, S. (author)
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Gustafsson, M. (author)
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Hadasch, D. (author)
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Hayashida, M. (author)
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Hayashi, K. (author)
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Hou, X. (author)
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Hughes, R. E. (author)
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Johannesson, G. (author)
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Johnson, A. S. (author)
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Kamae, T. (author)
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Knoedlseder, J. (author)
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Kuss, M. (author)
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Lande, J. (author)
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Latronico, L. (author)
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Lemoine-Goumard, M. (author)
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Linden, T. (author)
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Lionetto, A. M. (author)
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- Garde, M. Llena (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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Longo, F. (author)
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Loparco, F. (author)
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Lovellette, M. N. (author)
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Lubrano, P. (author)
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Mazziotta, M. N. (author)
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McEnery, J. E. (author)
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Mitthumsiri, W. (author)
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Mizuno, T. (author)
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Monte, C. (author)
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Monzani, M. E. (author)
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Morselli, A. (author)
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Moskalenko, I. V. (author)
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Murgia, S. (author)
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Naumann-Godo, M. (author)
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Norris, J. P. (author)
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Nuss, E. (author)
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Ohsugi, T. (author)
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Okumura, A. (author)
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Orienti, M. (author)
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Orlando, E. (author)
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Ormes, J. F. (author)
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Paneque, D. (author)
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Panetta, J. H. (author)
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Parent, D. (author)
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Pavlidou, V. (author)
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Pesce-Rollins, M. (author)
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Pierbattista, M. (author)
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Piron, F. (author)
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Pivato, G. (author)
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Raino, S. (author)
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Rando, R. (author)
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Reimer, A. (author)
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Reimer, O. (author)
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Roth, M. (author)
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Sbarra, C. (author)
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Schmitt, J. (author)
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Sgro, C. (author)
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Siegal-Gaskins, J. (author)
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Siskind, E. J. (author)
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Spandre, G. (author)
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Spinelli, P. (author)
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Strong, A. W. (author)
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Suson, D. J. (author)
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Takahashi, H. (author)
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Tanaka, T. (author)
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Thayer, J. B. (author)
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Tibaldo, L. (author)
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Tinivella, M. (author)
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Torres, D. F. (author)
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Tosti, G. (author)
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Troja, E. (author)
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Usher, T. L. (author)
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Vandenbroucke, J. (author)
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Vasileiou, V. (author)
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Vianello, G. (author)
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Vitale, V. (author)
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Waite, A. P. (author)
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Winer, B. L. (author)
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Wood, K. S. (author)
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Wood, M. (author)
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- Yang, Zhaoyu (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Zimmer, Stephan (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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Komatsu, E. (author)
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(creator_code:org_t)
- 2012
- 2012
- English.
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In: Physical Review D. - 1550-7998 .- 1550-2368. ; 85:8
- Related links:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- The contribution of unresolved sources to the diffuse gamma-ray background could induce anisotropies in this emission on small angular scales. We analyze the angular power spectrum of the diffuse emission measured by the Fermi Large Area Telescope at Galactic latitudes vertical bar b vertical bar > 30 degrees in four energy bins spanning 1-50 GeV. At multipoles l >= 155, corresponding to angular scales less than or similar to 2 degrees, angular power above the photon noise level is detected at >99.99% confidence level in the 1-2 GeV, 2-5 GeV, and 5-10 GeV energy bins, and at >99% confidence level at 10-50 GeV. Within each energy bin the measured angular power takes approximately the same value at all multipoles l >= 155, suggesting that it originates from the contribution of one or more unclustered source populations. The amplitude of the angular power normalized to the mean intensity in each energy bin is consistent with a constant value at all energies, C-P/< I >(2) 9.05 +/- 0.84 x 10(-6) sr, while the energy dependence of C-P is consistent with the anisotropy arising from one or more source populations with power-law photon spectra with spectral index Gamma(s) = 2.40 +/- 0.07. We discuss the implications of the measured angular power for gamma-ray source populations that may provide a contribution to the diffuse gamma-ray background.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Ackermann, M.
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Ajello, M.
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Albert, A.
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Baldini, L.
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Ballet, J.
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Barbiellini, G.
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show more...
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Bastieri, D.
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Bechtol, K.
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Bellazzini, R.
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Bloom, E. D.
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Bonamente, E.
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Borgland, A. W.
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Brandt, T. J.
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Bregeon, J.
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Brigida, M.
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Bruel, P.
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Buehler, R.
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Buson, S.
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Caliandro, G. A.
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Cameron, R. A.
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Caraveo, P. A.
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Cecchi, C.
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Charles, E.
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Chekhtman, A.
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Chiang, J.
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Ciprini, S.
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Claus, R.
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Cohen-Tanugi, J.
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Conrad, Jan
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Cuoco, Alessandr ...
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Cutini, S.
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D'Ammando, F.
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de Palma, F.
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Dermer, C. D.
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Digel, S. W.
-
do Couto e Silva ...
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Drell, P. S.
-
Drlica-Wagner, A ...
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Dubois, R.
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Favuzzi, C.
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Fegan, S. J.
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Ferrara, E. C.
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Fortin, P.
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Fukazawa, Y.
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Fusco, P.
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Gargano, F.
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Gasparrini, D.
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Germani, S.
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Giglietto, N.
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Giroletti, M.
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Glanzman, T.
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Godfrey, G.
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Gomez-Vargas, G. ...
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Gregoire, T.
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Grenier, I. A.
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Grove, J. E.
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Guiriec, S.
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Gustafsson, M.
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Hadasch, D.
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Hayashida, M.
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Hayashi, K.
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Hou, X.
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Hughes, R. E.
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Johannesson, G.
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Johnson, A. S.
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Kamae, T.
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Knoedlseder, J.
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Kuss, M.
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Lande, J.
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Latronico, L.
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Lemoine-Goumard, ...
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Linden, T.
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Lionetto, A. M.
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Garde, M. Llena
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Longo, F.
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Loparco, F.
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Lovellette, M. N ...
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Lubrano, P.
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Mazziotta, M. N.
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McEnery, J. E.
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Mitthumsiri, W.
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Mizuno, T.
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Monte, C.
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Monzani, M. E.
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Morselli, A.
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Moskalenko, I. V ...
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Murgia, S.
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Naumann-Godo, M.
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Norris, J. P.
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Nuss, E.
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Ohsugi, T.
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Okumura, A.
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Orienti, M.
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Orlando, E.
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Ormes, J. F.
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Paneque, D.
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Panetta, J. H.
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Parent, D.
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Pavlidou, V.
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Pesce-Rollins, M ...
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Pierbattista, M.
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Piron, F.
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Pivato, G.
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Raino, S.
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Rando, R.
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Reimer, A.
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Reimer, O.
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Roth, M.
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Sbarra, C.
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Schmitt, J.
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Sgro, C.
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Siegal-Gaskins, ...
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Siskind, E. J.
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Spandre, G.
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Spinelli, P.
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Strong, A. W.
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Suson, D. J.
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Takahashi, H.
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Tanaka, T.
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Thayer, J. B.
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Tibaldo, L.
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Tinivella, M.
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Torres, D. F.
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Tosti, G.
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Troja, E.
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Usher, T. L.
-
Vandenbroucke, J ...
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Vasileiou, V.
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Vianello, G.
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Vitale, V.
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Waite, A. P.
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Winer, B. L.
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Wood, K. S.
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Wood, M.
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Yang, Zhaoyu
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Zimmer, Stephan
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Komatsu, E.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
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Physical Review ...
- By the university
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Stockholm University