Yerevan Physics Institute, Armenia ; National Academy of Sciences of the Republic of Armenia, Armenia.
Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
Humboldt University of Berlin, Germany.
Paris Diderot University, France.
University of Savoy, France.
University of Namibia, Namibia.
Univ Amsterdam, Netherlands.
North West Univ, South Africa.
Ruhr Univ Bochum, Germany.
Univ Amsterdam, Netherlands.
Leopold Franzens Univ Innsbruck, Austria.
Max Planck Inst Kernphys, Germany.
Univ Adelaide, Australia.
North West Univ, South Africa.
Univ Paris Diderot, France.
UPMC Univ Paris 06, CNRS, LPNHE, Sorbonne Paris Cite, 4 Pl Jussieu, F-75252 Paris 5, France..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Univ Bordeaux, Ctr Etudes Nucl Bordeaux Gradignan, CNRS, IN2P3, F-33175 Gradignan, France..
CEA Saclay, DSM, Irfu, F-91191 Gif Sur Yvette, France..
Univ Amsterdam, Anton Pannekoek Inst Astron, GRAPPA, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands..
Univ Warsaw, Astron Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland..
Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
Aix Marseille Univ, CNRS, IN2P3, CPPM,UMR 7346, F-13288 Marseille, France..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany.;Inst Fizyki Jadrowej PAN, Ul Radzikowskiego 152, PL-31342 Krakow, Poland..
UPMC Univ Paris 06, CNRS, LPNHE, Sorbonne Paris Cite, 4 Pl Jussieu, F-75252 Paris 5, France..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
UPMC Univ Paris 06, CNRS, LPNHE, Sorbonne Paris Cite, 4 Pl Jussieu, F-75252 Paris 5, France..
Univ Montpellier, CNRS, IN2P3, Lab Univ & Particules Montpellier, CC 72,Pl Eugene Bataillon, F-34095 Montpellier 5, France..
Univ Witwatersrand, Sch Phys, 1 Jan Smuts Ave, ZA-2050 Johannesburg, South Africa..
Univ Savoie Mont Blanc, CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France..
UPMC Univ Paris 06, CNRS, LPNHE, Sorbonne Paris Cite, 4 Pl Jussieu, F-75252 Paris 5, France..
Univ Witwatersrand, Sch Phys, 1 Jan Smuts Ave, ZA-2050 Johannesburg, South Africa..
Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
Univ Bordeaux, Ctr Etudes Nucl Bordeaux Gradignan, CNRS, IN2P3, F-33175 Gradignan, France..
Stockholm Univ, Albanova Univ Ctr, Oskar Klein Ctr, Dept Phys, S-10691 Stockholm, Sweden..
UPMC Univ Paris 06, CNRS, LPNHE, Sorbonne Paris Cite, 4 Pl Jussieu, F-75252 Paris 5, France..
Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa.;Univ Namibia, Dept Phys, 13301 Private Bag, Windhoek, Namibia.;Stockholm Univ, Albanova Univ Ctr, Oskar Klein Ctr, Dept Phys, S-10691 Stockholm, Sweden..
Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
CEA Saclay, DSM, Irfu, F-91191 Gif Sur Yvette, France..
Univ Adelaide, Sch Phys Sci, Adelaide, SA 5005, Australia..
Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
Univ Paris Diderot, CNRS, IN2P3,Sorbonne Paris Cite, CEA,Observ Paris,APC,AstroParticule & Cosmol,Irfu, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Univ Grenoble Alpes, IPAG, F-38000 Grenoble, France.;CNRS, IPAG, F-38000 Grenoble, France..
Univ Leicester, Dept Phys & Astron, Univ Rd, Leicester LE1 7RH, Leics, UK.
Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str 24-25, D-14476 Potsdam, Germany..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Friedrich Alexander Univ Erlangen Ntirnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
Univ Savoie Mont Blanc, CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France..
Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Friedrich Alexander Univ Erlangen Ntirnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
DESY, D-15738 Zeuthen, Germany..
Univ Paris Diderot, CNRS, IN2P3,Sorbonne Paris Cite, CEA,Observ Paris,APC,AstroParticule & Cosmol,Irfu, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
CEA Saclay, DSM, Irfu, F-91191 Gif Sur Yvette, France..
North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
DESY, D-15738 Zeuthen, Germany..
Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
Univ Warsaw, Astron Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland..
Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
Uniwersytet Jagiellonski, Obserwatorium Astronomiczne, Ul Orla 171, PL-30244 Krakow, Poland..
Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
DESY, D-15738 Zeuthen, Germany..
Univ Adelaide, Sch Phys Sci, Adelaide, SA 5005, Australia..
Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
Univ Grenoble Alpes, IPAG, F-38000 Grenoble, France.;CNRS, IPAG, F-38000 Grenoble, France..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Univ Paris Diderot, PSL Res Univ, CNRS, Observ Paris,LUTH, 5 Pl Jules Janssen, F-92190 Meudon, France.;Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.;Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str 24-25, D-14476 Potsdam, Germany..
Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
UPMC Univ Paris 06, CNRS, LPNHE, Sorbonne Paris Cite, 4 Pl Jussieu, F-75252 Paris 5, France..
Uniwersytet Jagiellonski, Obserwatorium Astronomiczne, Ul Orla 171, PL-30244 Krakow, Poland..
Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland..
Friedrich Alexander Univ Erlangen Ntirnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
Univ Witwatersrand, Sch Phys, 1 Jan Smuts Ave, ZA-2050 Johannesburg, South Africa..
Friedrich Alexander Univ Erlangen Ntirnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
Univ Paris Diderot, CNRS, IN2P3,Sorbonne Paris Cite, CEA,Observ Paris,APC,AstroParticule & Cosmol,Irfu, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
Friedrich Alexander Univ Erlangen Ntirnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
Nicholas Copernicus Univ, Ctr Astron, Fac Phys Astron & Informat, Grudziadzka 5, PL-87100 Torun, Poland..
Friedrich Alexander Univ Erlangen Ntirnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
UPMC Univ Paris 06, CNRS, LPNHE, Sorbonne Paris Cite, 4 Pl Jussieu, F-75252 Paris 5, France..
Univ Paris Diderot, CNRS, IN2P3,Sorbonne Paris Cite, CEA,Observ Paris,APC,AstroParticule & Cosmol,Irfu, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
UPMC Univ Paris 06, CNRS, LPNHE, Sorbonne Paris Cite, 4 Pl Jussieu, F-75252 Paris 5, France..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
DESY, D-15738 Zeuthen, Germany..
Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland..
Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria..
Univ Witwatersrand, Sch Phys, 1 Jan Smuts Ave, ZA-2050 Johannesburg, South Africa..
Univ Warsaw, Astron Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland..
Ruhr Univ Bochum, Inst Theoret Phys, Lehrstuhl 4, Weltraum & Astrophys, D-44780 Bochum, Germany..
Friedrich Alexander Univ Erlangen Ntirnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
Univ Savoie Mont Blanc, CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France..
North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
Univ Bordeaux, Ctr Etudes Nucl Bordeaux Gradignan, CNRS, IN2P3, F-33175 Gradignan, France..
Univ Savoie Mont Blanc, CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France..
Univ Adelaide, Sch Phys Sci, Adelaide, SA 5005, Australia..
Univ Paris Diderot, PSL Res Univ, CNRS, Observ Paris,LUTH, 5 Pl Jules Janssen, F-92190 Meudon, France..
Univ Warsaw, Astron Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland..
Univ Paris Diderot, CNRS, IN2P3,Sorbonne Paris Cite, CEA,Observ Paris,APC,AstroParticule & Cosmol,Irfu, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
Univ Bordeaux, Ctr Etudes Nucl Bordeaux Gradignan, CNRS, IN2P3, F-33175 Gradignan, France..
Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str 24-25, D-14476 Potsdam, Germany..
Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
Univ Warsaw, Astron Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
DESY, D-15738 Zeuthen, Germany..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
CEA Saclay, DSM, Irfu, F-91191 Gif Sur Yvette, France..
Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Univ Savoie Mont Blanc, CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France..
Univ Adelaide, Sch Phys Sci, Adelaide, SA 5005, Australia..
Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
Univ Free State, Dept Phys, POB 339, ZA-9300 Bloemfontein, South Africa..
Stockholm Univ, Albanova Univ Ctr, Oskar Klein Ctr, Dept Phys, S-10691 Stockholm, Sweden..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland..
Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
Friedrich Alexander Univ Erlangen Ntirnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
Stockholm Univ, Albanova Univ Ctr, Oskar Klein Ctr, Dept Phys, S-10691 Stockholm, Sweden..
Univ Warsaw, Astron Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland..
Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria..
Inst Fizyki Jadrowej PAN, Ul Radzikowskiego 152, PL-31342 Krakow, Poland..
Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
Univ Leicester, Dept Phys & Astron, Univ Rd, Leicester LE1 7RH, Leics, UK.
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria..
DESY, D-15738 Zeuthen, Germany..
Uniwersytet Jagiellonski, Obserwatorium Astronomiczne, Ul Orla 171, PL-30244 Krakow, Poland..
DESY, D-15738 Zeuthen, Germany..
CEA Saclay, DSM, Irfu, F-91191 Gif Sur Yvette, France..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
Univ Grenoble Alpes, IPAG, F-38000 Grenoble, France.;CNRS, IPAG, F-38000 Grenoble, France..
UPMC Univ Paris 06, CNRS, LPNHE, Sorbonne Paris Cite, 4 Pl Jussieu, F-75252 Paris 5, France..
Univ Warsaw, Astron Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland..
Univ Paris Diderot, CNRS, IN2P3,Sorbonne Paris Cite, CEA,Observ Paris,APC,AstroParticule & Cosmol,Irfu, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
Friedrich Alexander Univ Erlangen Ntirnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria..
Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria..
CEA Saclay, DSM, Irfu, F-91191 Gif Sur Yvette, France..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany.;ITA Univ Heidelberg, DFG, D-69029 Heidelberg, Germany..
Univ Savoie Mont Blanc, CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France..
Univ Adelaide, Sch Phys Sci, Adelaide, SA 5005, Australia..
Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland..
Univ Paris Diderot, PSL Res Univ, CNRS, Observ Paris,LUTH, 5 Pl Jules Janssen, F-92190 Meudon, France..
Natl Acad Sci Republ Armenia, Marshall Baghramian Ave 24, Yerevan 0019, Armenia.;Yerevan Phys Inst, 2 Alikhanian Bros St, Yerevan 375036, Armenia..
Univ Amsterdam, Inst High Energy Phys, GRAPPA, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands..
Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany..
Ruhr Univ Bochum, Inst Theoret Phys, Lehrstuhl 4, Weltraum & Astrophys, D-44780 Bochum, Germany..
Univ Warsaw, Astron Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland..
DESY, D-15738 Zeuthen, Germany..
Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
UPMC Univ Paris 06, CNRS, LPNHE, Sorbonne Paris Cite, 4 Pl Jussieu, F-75252 Paris 5, France..
North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
Univ Witwatersrand, Sch Phys, 1 Jan Smuts Ave, ZA-2050 Johannesburg, South Africa..
Friedrich Alexander Univ Erlangen Ntirnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
Univ Amsterdam, Anton Pannekoek Inst Astron, GRAPPA, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands..
Univ Paris Diderot, PSL Res Univ, CNRS, Observ Paris,LUTH, 5 Pl Jules Janssen, F-92190 Meudon, France..
North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
Stockholm Univ, Albanova Univ Ctr, Oskar Klein Ctr, Dept Phys, S-10691 Stockholm, Sweden..
Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
Uniwersytet Jagiellonski, Obserwatorium Astronomiczne, Ul Orla 171, PL-30244 Krakow, Poland..
Univ Namibia, Dept Phys, 13301 Private Bag, Windhoek, Namibia..
Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str 24-25, D-14476 Potsdam, Germany.;DESY, D-15738 Zeuthen, Germany..
DESY, D-15738 Zeuthen, Germany..
North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
Univ Paris Diderot, CNRS, IN2P3,Sorbonne Paris Cite, CEA,Observ Paris,APC,AstroParticule & Cosmol,Irfu, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
Univ Paris Diderot, CNRS, IN2P3,Sorbonne Paris Cite, CEA,Observ Paris,APC,AstroParticule & Cosmol,Irfu, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Friedrich Alexander Univ Erlangen Ntirnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
Univ Hamburg, Inst Expt Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany..
Inst Fizyki Jadrowej PAN, Ul Radzikowskiego 152, PL-31342 Krakow, Poland..
Rikkyo Univ, Dept Phys, Toshima Ku, 3-34-1 Nishi Ikebukuro, Tokyo 1718501, Japan..
North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
Friedrich Alexander Univ Erlangen Ntirnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
Univ Free State, Dept Phys, POB 339, ZA-9300 Bloemfontein, South Africa..
CEA Saclay, DSM, Irfu, F-91191 Gif Sur Yvette, France..
Friedrich Alexander Univ Erlangen Ntirnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
UPMC Univ Paris 06, CNRS, LPNHE, Sorbonne Paris Cite, 4 Pl Jussieu, F-75252 Paris 5, France..
Univ Amsterdam, Anton Pannekoek Inst Astron, GRAPPA, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands..
Univ Adelaide, Sch Phys Sci, Adelaide, SA 5005, Australia..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Univ Savoie Mont Blanc, CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France..
North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..
Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
Humboldt Univ, Inst Phys, Newtonstr 15, D-12489 Berlin, Germany..
Stockholm Univ, Albanova Univ Ctr, Oskar Klein Ctr, Dept Phys, S-10691 Stockholm, Sweden..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Inst Fizyki Jadrowej PAN, Ul Radzikowskiego 152, PL-31342 Krakow, Poland..
Friedrich Alexander Univ Erlangen Ntirnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
Friedrich Alexander Univ Erlangen Ntirnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
Univ Warsaw, Astron Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland..
Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..
Univ Leicester, Dept Phys & Astron, Univ Rd, Leicester LE1 7RH, Leics, UK.
Heidelberg Univ, Landessternwarte, D-69117 Heidelberg, Germany..
Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland..
Univ Paris Diderot, PSL Res Univ, CNRS, Observ Paris,LUTH, 5 Pl Jules Janssen, F-92190 Meudon, France..
Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
Friedrich Alexander Univ Erlangen Ntirnberg, Erlangen Ctr Astroparticle Phys, Erwin Rommel Str 1, D-91058 Erlangen, Germany..
Uniwersytet Jagiellonski, Obserwatorium Astronomiczne, Ul Orla 171, PL-30244 Krakow, Poland..
DESY, D-15738 Zeuthen, Germany..
Clemson Univ, Dept Phys & Astron, Kinard Lab Phys, Clemson, SC 29634 USA..
Univ Pisa, I-56127 Pisa, Italy.;Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.;Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.;Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA..
Univ Free State, Dept Phys, POB 339, ZA-9300 Bloemfontein, South Africa.;Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy..
Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy..
Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.;Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA..
Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy.;Univ Studi Torino, Dipartimento Fis, I-10125 Turin, Italy..
Univ Montpellier, CNRS, IN2P3, Laboratoire Univers & Particules Montpellier, F-34095 Montpellier, France..
Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
DESY, D-15738 Zeuthen, Germany..
Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.;Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.;CIFS, I-10133 Turin, Italy..
Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.;Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA..
Univ Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.;Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.;Ist Nazl Fis Nucl, Sez Bari, Bari, Italy..
INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy..
Agenzia Spaziale Italiana, Sci Data Ctr, I-00133 Rome, Italy..
Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.;Univ Studi Perugia, Dipartimento Fis, I-06123 Perugia, Italy..
Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.;Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA..
Univ Padua, Dipartimento Fis & Astron G Galilei, I-35131 Padua, Italy..
Agenzia Spaziale Italiana, Sci Data Ctr, I-00133 Rome, Italy.;Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy..
Univ Montpellier, CNRS, IN2P3, Laboratoire Univers & Particules Montpellier, F-34095 Montpellier, France..
Ist Nazl Fis Nucl, Sez Bari, Bari, Italy..
Agenzia Spaziale Italiana, Sci Data Ctr, I-00133 Rome, Italy.;Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy..
Ist Radioastron, INAF, I-40129 Bologna, Italy.;Univ Bologna, Dipartimento Astron, I-40127 Bologna, Italy..
Univ Pisa, I-56127 Pisa, Italy.;Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.;Univ Telemat Pegaso Piazza Trieste & Trento, I-80132 Naples, Italy..
Univ Amsterdam, Inst High Energy Phys, GRAPPA, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands.;Univ Udine, I-33100 Udine, Italy..
Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy..
Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.;Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA..
Univ Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.;Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.;Ist Nazl Fis Nucl, Sez Bari, Bari, Italy..
Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy..
Univ Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.;Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.;Ist Nazl Fis Nucl, Sez Bari, Bari, Italy..
Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.;Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA..
Univ Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.;Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.;Ist Nazl Fis Nucl, Sez Bari, Bari, Italy..
Ist Nazl Fis Nucl, Sez Bari, Bari, Italy..
Agenzia Spaziale Italiana, Sci Data Ctr, I-00133 Rome, Italy.;Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy..
Univ Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.;Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.;Ist Nazl Fis Nucl, Sez Bari, Bari, Italy..
Univ Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.;Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.;Ist Nazl Fis Nucl, Sez Bari, Bari, Italy..
Ist Radioastron, INAF, I-40129 Bologna, Italy..
Univ Orleans, CNRS, Lab Phys & Chim Environnement & Espace, F-45071 Orleans 2, France.;Observ Paris, CNRS, INSU, Stn Radioastron Nancay, F-18330 Nancay, France..
NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA..
Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..
Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland..
Univ Tokyo, Grad Sch Sci, Dept Phys, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan..
Hiroshima Univ, Dept Phys Sci, Higashihiroshima, Hiroshima 7398526, Japan..
The European Southern Observatory (ESO) , 2017. Vol. 600, article id A89
galaxies: active, BL Lacertae objects: individual: PKS 2155-304, BL Lacertae objects: individual: PG 1553+113, gamma rays: galaxies