Measurement of the extragalactic background light using MAGIC and Fermi-LAT gamma-ray observations of blazars up to z = 1
- Acciari, V. A.
- Ansoldi, S.
- Bednarek, W.
- Mirzoyan, R.
- Molina, E.
- Moralejo, A.
- Morcuende, D.
- Moreno, V.
- Moretti, E.
- Munar-Adrover, P.
- Neustroev, V.
- Niedzwiecki, A.
- Nievas Rosillo, M.
- Bellizzi, L.
- Nigro, C.
- Nilsson, K.
- Ninci, D.
- Nishijima, K.
- Noda, K.
- Nogués, L.
- Nöthe, M.
- Paiano, S.
- Palacio, J.
- Palatiello, M.
- Bernardini, E.
- Paneque, D.
- Paoletti, R.
- Paredes, J. M.
- Peñil, P.
- Peresano, M.
- Persic, M.
- Prada Moroni, P. G.
- Prandini, E.
- Puljak, I.
- Rhode, W.
- Berti, A.
- Ribó, M.
- Rico, J.
- Righi, C.
- Rugliancich, A.
- Saha, L.
- Sahakyan, N.
- Saito, T.
- Satalecka, K.
- Schweizer, T.
- Sitarek, J.
- Besenrieder, J.
- Šnidarić, I.
- Sobczynska, D.
- Somero, A.
- Stamerra, A.
- Strom, D.
- Strzys, M.
- Surić, T.
- Tavecchio, F.
- Temnikov, P.
- Terzić, T.
- Bhattacharyya, W.
- Teshima, M.
- Torres-Albà, N.
- Tsujimoto, S.
- van Scherpenberg, J.
- Vanzo, G.
- Vázquez Acosta, M.
- Vovk, I.
- Will, M.
- Zarić, D.
- Bigongiari, C.
- Biland, A.
- Blanch, O.
- Bonnoli, G.
- Antonelli, L. A.
- Busetto, G.
- Carosi, R.
- Ceribella, G.
- Chai, Y.
- Cikota, S.
- Colak, S. M.
- Colin, U.
- Colombo, E.
- Contreras, J. L.
- Cortina, J.
- Arbet Engels, A.
- Covino, S.
- D’Elia, V.
- Da Vela, P.
- Dazzi, F.
- De Angelis, A.
- De Lotto, B.
- Delfino, M.
- Delgado, J.
- Di Pierro, F.
- Do Souto Espiñeira, E.
- Baack, D.
- Domínguez, A.
- Dominis Prester, D.
- Dorner, D.
- Doro, M.
- Elsaesser, D.
- Fallah Ramazani, V.
- Fattorini, A.
- Fernández-Barral, A.
- Ferrara, G.
- Fidalgo, D.
- Babić, A.
- Foffano, L.
- Fonseca, M. V.
- Font, L.
- Fruck, C.
- Galindo, D.
- Gallozzi, S.
- García López, R. J.
- Garczarczyk, M.
- Gasparyan, S.
- Gaug, M.
- Banerjee, B.
- Godinović, N.
- Green, D.
- Guberman, D.
- Hadasch, D.
- Hahn, A.
- Hassan, T.
- Herrera, J.
- Hoang, J.
- Hrupec, D.
- Inoue, S.
- Barres de Almeida, U.
- Ishio, K.
- Iwamura, Y.
- Kubo, H.
- Kushida, J.
- Lamastra, A.
- Lelas, D.
- Leone, F.
- Lindfors, E.
- Lombardi, S.
- Longo, F.
- Barrio, J. A.
- López, M.
- López-Coto, R.
- López-Oramas, A.
- Machado de Oliveira Fraga, B.
- Maggio, C.
- Majumdar, P.
- Makariev, M.
- Mallamaci, M.
- Maneva, G.
- Manganaro, M.
- Becerra González, J.
- Mannheim, K.
- Maraschi, L.
- Mariotti, M.
- Martínez, M.
- Masuda, S.
- Mazin, D.
- Mićanović, S.
- Miceli, D.
- Minev, M.
- Miranda, J. M.
DOIAbstract
We present a measurement of the extragalactic background light (EBL) based on a joint likelihood analysis of 32 gamma-ray spectra for 12 blazars in the redshift range z = 0.03–0.944, obtained by the MAGIC telescopes and Fermi-LAT. The EBL is the part of the diffuse extragalactic radiation spanning the ultraviolet, visible, and infrared bands. Major contributors to the EBL are the light emitted by stars through the history of the Universe, and the fraction of it that was absorbed by dust in galaxies and re-emitted at longer wavelengths. The EBL can be studied indirectly through its effect on very high energy photons that are emitted by cosmic sources and absorbed via γγ interactions during their propagation across cosmological distances. We ...
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