Abdo AA, Ackermann M, Ajello M, Allafort A, Atwood WB, Baldini L, Ballet J, Barbiellini G, Baring MG, Bastieri D, Baughman BM, Bechtol K, Bellazzini R, Berenji B, Bhat PN, Blandford RD, Bloom ED, Bonamente E, Borgland AW, Bouvier A, Brandt TJ, Bregeon J, Brez A, Briggs MS, Brigida M, Bruel P, Buehler R, Burnett TH, Buson S, Caliandro GA, Cameron RA, Caraveo PA, Carrigan S, Casandjian JM, Cavazzuti E, Cecchi C, Celik O, Charles E, Chekhtman A, Chen AW, Cheung CC, Chiang J, Ciprini S, Claus R, Cohen-Tanugi J, Connaughton V, Conrad J, Costamante L, Dermer CD, De Angelis A, De Palma F, Digel SW, Dingus BL, Do Couto E Silva E, Drell PS, Dubois R, Favuzzi C, Fegan SJ, Finke J, Fortin P, Fukazawa Y, Funk S, Fusco P, Gargano F, Gasparrini D, Gehrels N, Germani S, Giglietto N, Gilmore RC, Giommi P, Giordano F, Giroletti M, Glanzman T, Godfrey G, Granot J, Greiner J, Grenier IA, Grove JE, Guiriec S, Gustafsson M, Hadasch D, Hayashida M, Hays E, Horan D, Hughes RE, Johannesson G, Johnson AS, Johnson RP, Johnson WN, Kamae T, Katagiri H, Kataoka J, Knoedlseder J, Kocevski D, Kuss MW, Lande J, Latronico L, Lee SH, Garde ML, Longo F, Loparco F, Lott B, Lovellette MN, Lubrano P, Makeev A, Mazziotta N, Mcconville W, Mcenery JE, Mcglynn S, Mehault J, Meszaros P, Michelson PF, Mizuno T, Moiseev AA, Monte C, Monzani ME, Moretti E, Morselli A, Moskalenko IV, Murgia S, Nakamori T, Naumann-Godo M, Nolan PL, Norris JP, Nuss E, Ohno M, Ohsugi T, Okumura A, Omodei N, Orlando E, Ormes JF, Ozaki M, Paneque D, Panetta JH, Parent D, Pelassa V, Pepe M, Pesce-Rollins M, Piron F, Porter TA, Primack JR, Raino S, Rando R, Razzano M, Razzaque S, Reimer A, Reimer O, Reyes LC, Ripken J, Ritz S, Romani RW, Roth M, Sadrozinski HFW, Sanchez D, Sander A, Scargle JD, Schalk TL, Sgro C, Shaw MS, Siskind EJ, Smith PD, Spandre G, Spinelli P, Stecker FW, Strickman MS, Suson DJ, Tajima H, Takahashi HH, Takahashi T, Tanaka T, Thayer JB, Thayer JG, Thompson DJ, Tibaldo L, Torres DF, Tosti G, Tramacere A, Uchiyama Y, Usher TL, Vandenbroucke J, Vasileiou V, Vilchez N, Vitale V, Von Kienlin A, Waite AP, Wang P, Wilson-Hodge C, Winer BL, Wood KS, Yamazaki R, Yang Z, Ylinen T, Ziegler M (2010)
Publication Type: Journal article
Publication year: 2010
Book Volume: 723
Pages Range: 1082-1096
Journal Issue: 2
DOI: 10.1088/0004-637X/723/2/1082
The extragalactic background light (EBL) includes photons with wavelengths from ultraviolet to infrared, which are effective at attenuating gamma rays with energy above similar to 10 GeV during propagation from sources at cosmological distances. This results in a redshift- and energy-dependent attenuation of the gamma-ray flux of extragalactic sources such as blazars and gamma-ray bursts (GRBs). The Large Area Telescope on board Fermi detects a sample of gamma-ray blazars with redshift up to z similar to 3, and GRBs with redshift up to z similar to 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 gamma-ray flux attenuation by the EBL. We place upper limits on the gamma-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.
APA:
Abdo, A.A., Ackermann, M., Ajello, M., Allafort, A., Atwood, W.B., Baldini, L.,... Ziegler, M. (2010). FERMI LARGE AREA TELESCOPE CONSTRAINTS ON THE GAMMA-RAY OPACITY OF THE UNIVERSE. Astrophysical Journal, 723(2), 1082-1096. https://doi.org/10.1088/0004-637X/723/2/1082
MLA:
Abdo, A. A., et al. "FERMI LARGE AREA TELESCOPE CONSTRAINTS ON THE GAMMA-RAY OPACITY OF THE UNIVERSE." Astrophysical Journal 723.2 (2010): 1082-1096.
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