Fermi Large Area Telescope constraints on the gamma-ray opacity of the universe
| Title: | Fermi Large Area Telescope constraints on the gamma-ray opacity of the universe |
|---|---|
| Authors: | 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; Silva EDE; Drell PS; Dubois R; FAVUZZI, Cecilia; Fegan SJ; Finke J; Fortin P; Fukazawa Y; Funk S; Fusco P; Gargano F; Gasparrini D; Gehrels N; Germani S; GIGLIETTO, Nicola; 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; Knodlseder J; Kocevski D; Kuss M; 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 H; 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. |
| Contributors: | 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, M; 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; Silva, Ede; Drell, P; Dubois, R; Favuzzi, Cecilia; Fegan, Sj; Finke, J; Fortin, P; Fukazawa, Y; Funk, S; Fusco, P; Gargano, F; Gasparrini, D; Gehrels, N; Germani, S; Giglietto, Nicola; 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, A; Johnson, Rp; Johnson, Wn; Kamae, T; Katagiri, H; Kataoka, J; Knodlseder, J; Kocevski, D; Kuss, M; Lande, J; Latronico, L; Lee, Sh; Garde, Ml; Longo, F |
| Publication Year: | 2010 |
| Collection: | Politecnico di Bari: Iris POLIBA (Catalogo dei prodotti della Ricerca) |
| Subject Terms: | Diffuse radiation; Dust; extinction; Gamma rays: general |
| Description: | 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. |
| Document Type: | article in journal/newspaper |
| File Description: | ELETTRONICO |
| Language: | English |
| Relation: | info:eu-repo/semantics/altIdentifier/wos/WOS:000284093700011; volume:723; issue:2; firstpage:1082; lastpage:1096; numberofpages:15; journal:THE ASTROPHYSICAL JOURNAL; https://hdl.handle.net/11589/1857 |
| DOI: | 10.1088/0004-637X/723/2/1082 |
| Availability: | https://hdl.handle.net/11589/1857; https://doi.org/10.1088/0004-637X/723/2/1082 |
| Rights: | info:eu-repo/semantics/openAccess ; license:Tutti i diritti riservati |
| Accession Number: | edsbas.60EA8772 |
| Database: | BASE |