Search for an extended VHE gamma-ray emission from Mrk 421 and Mrk 501 with the MAGIC Telescope

Aleksic, J; Antonelli, La; Antoranz, P; Backes, M; Baixeras, C; Barrio, Ja; Bastieri, Denis; Gonzalez, Jb; Bednarek, W; Berdyugin, A; Berger, K; Bernardini, E; Biland, A; Blanch, O; Bock, Rk; Bonnoli, G; Bordas, P; Tridon, Db; Bosch Ramon, V; Bose, D; Braun, I; Bretz, T; Britzger, D; Camara, M; Carmona, E; Carosi, A; Colin, P; Commichau, S; Contreras, Jl; Cortina, J; Costado, Mt; Covino, S; Dazzi, F; De Angelis, A; Del Pozo Ed,; De Los Reyes Rd,; De Lotto, B; De Maria, M; De Sabata, F; Mendez, Cd; Doert, M; Dominguez, A; Prester, Dd; Dorner, D; Doro, Michele; Elsaesser, D; Errando, M; Ferenc, D; Fonseca, Mv; Font, L; Rjg, Lopez; Garczarczyk, M; Gaug, M; Godinovic, N; Hadasch, D; Herrero, A; Hildebrand, D; Hohne Monch, D; Hose, J; Hrupec, D; Hsu, Cc; Jogler, T; Klepser, S; Krahenbuhl, T; Kranich, D; La Barbera, A; Laille, A; Leonardo, E; Lindfors, E; Lombardi, S; Longo, F; Lopez, M; Lorenz, E; Majumdar, P; Maneva, G; Mankuzhiyil, N; Mannheim, K; Maraschi, L; Mariotti, Mose'; Martinez, M; Mazin, D; Meucci, M; Miranda, Jm; Mirzoyan, R; Miyamoto, H; Moldon, J; Moles, M; Moralejo, A; Nieto, D; Nilsson, K; Ninkovic, J; Orito, R; Oya, I; Paiano, S; Paoletti, R; Paredes, Jm; Partini, S; Pasanen, M; Pascoli, Donatella; Pauss, F; Pegna, Rg; Perez Torres Ma,; Persic, M; Peruzzo, L; Prada, F; Prandini, E; Puchades, N; Puljak, I; Reichardt, I; Rhode, W; Ribo, M; Rico, J; Rissi, M; Rugamer, S; Saggion, A; Saito, Ty; Salvati, M; Sanchez Conde, M; Satalecka, K; Scalzotto, V; Scapin, V; Schultz, C; Schweizer, T; Shayduk, M; Shore, Sn; Sierpowska Bartosik, A; Sillanpaa, A; Sitarek, J; Sobczynska, D; Spanier, F; Spiro, S; Stamerra, A; Steinke, B; Struebig, Jc; Suric, T; Takalo, L; Tavecchio, F; Temnikov, P; Terzic, T; Tescaro, D; Teshima, M; Torres, Df; Vankov, H; Wagner, Rm; Weitzel, Q; Zabalza, V; Zandanel, F; Zanin, R; Neronov, A; Semikoz, Dv

doi:10.1051/0004-6361/201014747

Context. Part of the very high energy gamma-ray radiation coming from extragalactic sources is absorbed through the pair production process on the extragalactic background light photons. Extragalactic magnetic fields alter the trajectories of these cascade pairs and, in turn, convert cosmic background photons to.-ray energies by inverse Compton scattering. These secondary photons can form an extended halo around bright VHE sources. Aims. We searched for an extended emission around the bright blazars Mrk 421 and Mrk 501 using the MAGIC telescope data.