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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Fermi Large Area Telescope constraints on the gamma-ray opacity of the universe
Astrophysical Journal, Volume 723, No. 2, Year 2010
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Description
The extragalactic background light (EBL) includes photons with wavelengths from ultraviolet to infrared, which are effective at attenuating gamma rays with energy above ∼10 GeV during propagation from sources at cosmological distances. This results in a redshift-and energy-dependent attenuation of the γ-ray flux of extragalactic sources such as blazars and gamma-ray bursts (GRBs). The Large Area Telescope on board Fermi detects a sample of γ-ray blazars with redshift up to z ∼ 3, and GRBs with redshift up to z ∼ 4.3. Using photons above 10 GeV collected by Fermi over more than one year of observations for these sources, we investigate the effect of γ-ray flux attenuation by the EBL. We place upper limits on the?-ray opacity of the universe at various energies and redshifts and compare this with predictions from well-known EBL models. We find that an EBL intensity in the optical-ultraviolet wavelengths as great as predicted by the "baseline" model of Stecker et al. can be ruled out with high confidence. © 2010. The American Astronomical Society.
Authors & Co-Authors
Abdo, Aous A.
United States, Washington, D.c.
U.s. Naval Research Laboratory
United States, Washington, D.c.
National Academy of Sciences
Ackermann, Markus
United States, Palo Alto
Stanford University
Ajello, Marco
United States, Palo Alto
Stanford University
Allafort, Alice J.
United States, Palo Alto
Stanford University
Atwood, W. B.
United States, Santa Cruz
University of California, Santa Cruz
Baldini, Luca
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Ballet, Jean
France, Gif-sur-yvette
Astrophysique, Instrumentation et Modélisation de Paris-saclay
Barbiellini, Guido
Italy, Trieste
Istituto Nazionale Di Fisica Nucleare, Sezione Di Trieste
Italy, Trieste
Università Degli Studi Di Trieste
Baring, Matthew G.
United States, Houston
Rice University
Bastieri, D.
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Italy, Padua
Università Degli Studi Di Padova
Bechtol, Keith C.
United States, Palo Alto
Stanford University
Bellazzini, Ronaldo
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Berenji, B.
United States, Palo Alto
Stanford University
Bhat, P. Narayana
United States, Huntsville
The University of Alabama in Huntsville
Blandford, Rogerd D.
United States, Palo Alto
Stanford University
Bloom, Elliott D.
United States, Palo Alto
Stanford University
Bonamente, Emanuele
Italy, Perugia
Istituto Nazionale Di Fisica Nucleare, Sezione Di Perugia
Italy, Perugia
Università Degli Studi Di Perugia
Borgland, Anders W.
United States, Palo Alto
Stanford University
Bouvier, Aurelien
United States, Palo Alto
Stanford University
Brandt, Theresa J.
United States, Columbus
The Ohio State University
France, Toulouse
Université Toulouse Iii - Paul Sabatier
Bregeon, Johan
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Briggs, Michael S.
United States, Huntsville
The University of Alabama in Huntsville
Brigida, Monica
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Bruel, Philippe V.
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Buehler, Rolf
United States, Palo Alto
Stanford University
Burnett, Thompson H.
United States, Seattle
University of Washington
Buson, Sara
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Italy, Padua
Università Degli Studi Di Padova
Caliandro, Giuseppe Andrea
Spain, Cerdanyola Del Valles
Universitat Autònoma de Barcelona
Cameron, Robert A.
United States, Palo Alto
Stanford University
Caraveo, Patrizia A.
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Carrigan, Svenja
Italy, Padua
Università Degli Studi Di Padova
Casandjian, Jean Marc
France, Gif-sur-yvette
Astrophysique, Instrumentation et Modélisation de Paris-saclay
Cavazzuti, Elisabetta
Italy, Rome
Agenzia Spaziale Italiana
Cecchi, Claudia
Italy, Perugia
Istituto Nazionale Di Fisica Nucleare, Sezione Di Perugia
Italy, Perugia
Università Degli Studi Di Perugia
Çelik, Ö. Ö.
United States, Greenbelt
Nasa Goddard Space Flight Center
United States, Baltimore
University of Maryland, Baltimore County Umbc
Charles, Eric
United States, Palo Alto
Stanford University
Chekhtman, Alexandre
United States, Washington, D.c.
U.s. Naval Research Laboratory
United States, Fairfax
George Mason University
Chen, Andrew W.
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Cheung, Chi C.Teddy
United States, Washington, D.c.
U.s. Naval Research Laboratory
United States, Washington, D.c.
National Academy of Sciences
Chiang, James
United States, Palo Alto
Stanford University
Ciprini, Stefano
Italy, Perugia
Università Degli Studi Di Perugia
Claus, Richard
United States, Palo Alto
Stanford University
Cohen-Tanugi, Johann
France, Montpellier
Université de Montpellier
Connaughton, Valerie
United States, Huntsville
The University of Alabama in Huntsville
Conrad, Jan
Sweden, Stockholm
Stockholms Universitet
Sweden, Stockholm
Oskar Klein Centre
Costamante, Luigi
United States, Palo Alto
Stanford University
Dermer, Charles Dennison
United States, Washington, D.c.
U.s. Naval Research Laboratory
De Angelis, Alessandro D.
Italy, Udine
Università Degli Studi Di Udine
de Palma, Francesco
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Digel, Seth W.
United States, Palo Alto
Stanford University
Dingus, Brenda L.
United States, Los Alamos
Los Alamos National Laboratory
do Couto E Silva, Eduardo
United States, Palo Alto
Stanford University
Drell, Persis S.
United States, Palo Alto
Stanford University
Dubois, Richard
United States, Palo Alto
Stanford University
Favuzzi, Cecilia
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Fegan, Stephen J.
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Finke, Justin D.
United States, Washington, D.c.
U.s. Naval Research Laboratory
United States, Washington, D.c.
National Academy of Sciences
Fortin, Pascal
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Fukazawa, Yasushi
Japan, Higashihiroshima
Hiroshima University
Funk, Stefan
United States, Palo Alto
Stanford University
Fusco, Piergiorgio G.
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Gargano, Fabio
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Gasparrini, Dario
Italy, Rome
Agenzia Spaziale Italiana
Gehrels, Neil C.
United States, Greenbelt
Nasa Goddard Space Flight Center
Germani, Stefano
Italy, Perugia
Istituto Nazionale Di Fisica Nucleare, Sezione Di Perugia
Italy, Perugia
Università Degli Studi Di Perugia
Giglietto, Nicola
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Giommi, Paolo
Italy, Rome
Agenzia Spaziale Italiana
Giordano, Francesco
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Giroletti, Marcello
Italy, Bologna
Istituto Di Radioastronomia, Bologna
Glanzman, Thomas
United States, Palo Alto
Stanford University
Godfrey, Gary L.
United States, Palo Alto
Stanford University
Granot, Jonathan
United Kingdom, Hatfield
University of Hertfordshire
Greiner, Jochen
Germany, Garching Bei Munchen
Max Planck Institute for Extraterrestrial Physics
Grenier, Isabelle A.
France, Gif-sur-yvette
Astrophysique, Instrumentation et Modélisation de Paris-saclay
Grove, J. Eric
United States, Washington, D.c.
U.s. Naval Research Laboratory
Guiriec, Sylvain
United States, Huntsville
The University of Alabama in Huntsville
Gustafsson, Michael
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Hadasch, Daniela
Spain, Barcelona
Institució Catalana de Recerca I Estudis Avançats
Hayashida, Masaaki
United States, Palo Alto
Stanford University
Hays, Elizabeth A.
United States, Greenbelt
Nasa Goddard Space Flight Center
Horan, Deirdre
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Hughes, Richard E.
United States, Columbus
The Ohio State University
Jóhannesson, Gudlaugur
United States, Palo Alto
Stanford University
Johnson, Anthony S.
United States, Palo Alto
Stanford University
Johnson, Robert P.
United States, Santa Cruz
University of California, Santa Cruz
Johnson, William Neil
United States, Washington, D.c.
U.s. Naval Research Laboratory
Kamae, Tsuneyoshi
United States, Palo Alto
Stanford University
Katagiri, Hideaki
Japan, Higashihiroshima
Hiroshima University
Kataoka, Jun
Japan, Tokyo
Waseda University
Kn̈odlseder, Jürgen
France, Toulouse
Université Toulouse Iii - Paul Sabatier
Kocevski, Daniel
United States, Palo Alto
Stanford University
Kuss, Michael W.
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Lande, Joshua
United States, Palo Alto
Stanford University
Latronico, Luca
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Llena-Garde, Maja
Sweden, Stockholm
Stockholms Universitet
Sweden, Stockholm
Oskar Klein Centre
Longo, Francesco
Italy, Trieste
Istituto Nazionale Di Fisica Nucleare, Sezione Di Trieste
Italy, Trieste
Università Degli Studi Di Trieste
Loparco, Francesco
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Lott, Benoît
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
France, Gradignan
Lp2i - Laboratoire de Physique Des Deux Infinis Bordeaux
Lovellette, Michael N.
United States, Washington, D.c.
U.s. Naval Research Laboratory
Lubrano, Pasquale
Italy, Perugia
Istituto Nazionale Di Fisica Nucleare, Sezione Di Perugia
Italy, Perugia
Università Degli Studi Di Perugia
Mazziotta, Mario Nicola
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
McConville, William F.
United States, Greenbelt
Nasa Goddard Space Flight Center
United States, College Park
University of Maryland, College Park
McEnery, Julie E.
United States, Greenbelt
Nasa Goddard Space Flight Center
United States, College Park
University of Maryland, College Park
Méhault, Jérémie
France, Montpellier
Université de Montpellier
Mészáros, Péter I.
United States, University Park
Pennsylvania State University
Michelson, Peter F.
United States, Palo Alto
Stanford University
Mizuno, Tsunefumi
Japan, Higashihiroshima
Hiroshima University
Moiseev, A. V.
United States, Greenbelt
Nasa Goddard Space Flight Center
United States, College Park
University of Maryland, College Park
Monzani, Maria Elena
United States, Palo Alto
Stanford University
Moretti, Elena
Italy, Trieste
Istituto Nazionale Di Fisica Nucleare, Sezione Di Trieste
Italy, Trieste
Università Degli Studi Di Trieste
Morselli, Aldo
Italy, Rome
Università Degli Studi Di Roma Tor Vergata
Moskalenko, Igor V.
United States, Palo Alto
Stanford University
Murgia, Simona
United States, Palo Alto
Stanford University
Nakamori, Takeshi
Japan, Tokyo
Waseda University
Naumann-Godó, Melitta
France, Gif-sur-yvette
Astrophysique, Instrumentation et Modélisation de Paris-saclay
Nolan, Patrick L.
United States, Palo Alto
Stanford University
Nuss, Eric
France, Montpellier
Université de Montpellier
Ohno, Masatoshi
Japan, Chofu
Japan Aerospace Exploration Agency
Ohsugi, Takashi
Japan, Higashihiroshima
Hiroshima University
Omodei, Nicola
United States, Palo Alto
Stanford University
Orlando, E.
Germany, Garching Bei Munchen
Max Planck Institute for Extraterrestrial Physics
Ormes, Jonathan F.
United States, Denver
University of Denver
Paneque, David
United States, Palo Alto
Stanford University
Parent, Damien
United States, Washington, D.c.
U.s. Naval Research Laboratory
United States, Fairfax
George Mason University
Pelassa, Vèronique
France, Montpellier
Université de Montpellier
Pesce-Rollins, Melissa
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Piron, Frédéric
France, Montpellier
Université de Montpellier
Porter, Troy A.
United States, Palo Alto
Stanford University
Primack, Joel R.
United States, Santa Cruz
University of California, Santa Cruz
Rainó, Silvia
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Rando, Riccardo
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Italy, Padua
Università Degli Studi Di Padova
Razzano, Massimiliano
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Razzaque, Soebur
United States, Washington, D.c.
U.s. Naval Research Laboratory
United States, Washington, D.c.
National Academy of Sciences
Reimer, Anita
United States, Palo Alto
Stanford University
Austria, Innsbruck
Universität Innsbruck
Reimer, Olaf
United States, Palo Alto
Stanford University
Austria, Innsbruck
Universität Innsbruck
Reyes, Luis C.
United States, Chicago
The University of Chicago
Ripken, Joachim
Sweden, Stockholm
Stockholms Universitet
Sweden, Stockholm
Oskar Klein Centre
Ritz, Steven
United States, Santa Cruz
University of California, Santa Cruz
Romani, Roger W.R.
United States, Palo Alto
Stanford University
Sadrozinski, Hartmut F.W.
United States, Santa Cruz
University of California, Santa Cruz
Sánchez, David A.
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Scargle, Jefferey D.
United States, Moffett Field
Nasa Ames Research Center
Schalk, Terry L.
United States, Santa Cruz
University of California, Santa Cruz
Sgro', Carmelo
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Siskind, Eric J.
Unknown Affiliation
Spandre, G.
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Spinelli, Paolo
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Stecker, Floyd William
United States, Greenbelt
Nasa Goddard Space Flight Center
Strickman, Mark S.
United States, Washington, D.c.
U.s. Naval Research Laboratory
Suson, Daniel J.
United States, Westville
Purdue University Northwest
Tajima, Hiroyasu
United States, Palo Alto
Stanford University
Takahashi, Hiromitsu
Japan, Higashihiroshima
Hiroshima University
Takahashi, Tadayuki
Japan, Chofu
Japan Aerospace Exploration Agency
Thayer, Jana B.
United States, Palo Alto
Stanford University
Thompson, David J.
United States, Greenbelt
Nasa Goddard Space Flight Center
Tibaldo, Luigi
France, Gif-sur-yvette
Astrophysique, Instrumentation et Modélisation de Paris-saclay
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Italy, Padua
Università Degli Studi Di Padova
Torres, Diego F.
Spain, Cerdanyola Del Valles
Universitat Autònoma de Barcelona
Spain, Barcelona
Institució Catalana de Recerca I Estudis Avançats
Tosti, Gino
Italy, Perugia
Istituto Nazionale Di Fisica Nucleare, Sezione Di Perugia
Italy, Perugia
Università Degli Studi Di Perugia
Tramacere, Andrea
United States, Palo Alto
Stanford University
Uchiyama, Yasunobu
United States, Palo Alto
Stanford University
Usher, Tracy L.
United States, Palo Alto
Stanford University
Vandenbroucke, Justin A.
United States, Palo Alto
Stanford University
Vilchez, Nicolas P.E.
France, Toulouse
Université Toulouse Iii - Paul Sabatier
Vitale, V.
Italy, Rome
Università Degli Studi Di Roma Tor Vergata
von Kienlin, Andreas
Germany, Garching Bei Munchen
Max Planck Institute for Extraterrestrial Physics
Waite, A. P.
United States, Palo Alto
Stanford University
Wilson-Hodge, Colleen A.
United States, Huntsville
Nasa Marshall Space Flight Center
Wood, Kent S.
United States, Washington, D.c.
U.s. Naval Research Laboratory
Yamazaki, Ryo
Japan, Tokyo
Aoyama Gakuin University
Statistics
Citations: 137
Authors: 169
Affiliations: 51
Identifiers
Doi:
10.1088/0004-637X/723/2/1082
ISSN:
0004637X