# MAGIC GAMMA-RAY TELESCOPE OBSERVATION OF THE PERSEUS CLUSTER OF GALAXIES : IMPLICATIONS FOR COSMIC RAYS, DARK MATTER, AND NGC 1275

@article{Aleksic2010MAGICGT, title={MAGIC GAMMA-RAY TELESCOPE OBSERVATION OF THE PERSEUS CLUSTER OF GALAXIES : IMPLICATIONS FOR COSMIC RAYS, DARK MATTER, AND NGC 1275}, author={T. M. C. J. Aleksi'c and L. Antonelli and P. Antoranz and Michael Backes and C. Baixeras and S. Balestra and J. Barrio and D. Bastieri and J. Gonzalez and W. Bednarek and A. Berdyugin and K. Berger and E. Bernardini and A. Biland and R. Bock and G. Bonnoli and P. Bordas and D. Tridon and V. Bosch-Ramon and D. Bose and I. Braun and T. Bretz and D. Britzger and M. Camara and E. Carmona and A. Carosi and P. Colin and S. Commichau and J. Contreras and J. Cortina and M. T. Costado and S. Covino and F. Dazzi and A. D. Angelis and E. D. C. D. Pozo and R. D. L. Reyes and B. D. Lotto and M. D. Maria and F. D. Sabata and C. Mendez and M. Doert and A. Dominguez and D. Prester and D. Dorner and M. Doro and D. Elsaesser and M. Errando and D. Ferenc and M. V. Fonseca and L. Font and N. Galante and R. L'opez and M. Garczarczyk and M. Gaug and N. Godinovic and D. Hadasch and A. Herrero and D. Hildebrand and D. Hohne-Monch and J. Hose and D. Hrupec and C. C. Hsu and T. Jogler and S. Klepser and T. Krahenbuhl and D. Kranich and A. L. Barbera and A. Laill{\'e} and E. Leonardo and E. Lindfors and S. Lombardi and F. Longo and M. L{\'o}pez and E. Lorenz and P. Majumdar and G. Maneva and N. Mankuzhiyil and K. Mannheim and L. Maraschi and M. Mariotti and M. Martinez and D. Mazin and M. Meucci and J. Miranda and R. Mirzoyan and H. Miyamoto and J. Mold'on and M. Moles and A. Moralejo and D. Nieto and K. Nilsson and J. Ninkovi{\'c} and R. Orito and I. Oya and S. Paiano and R. Paoletti and J. Paredes and S. Partini and M. Pasanen and D. Pascoli and F. Pauss and R. G. Pegna and M. Perez-Torres and M. Persic and L. Peruzzo and F. Prada and E. Prandini and N. Puchades and I. Puljak and I. Reichardt and W. Rhode and M. Rib'o and J. Rico and M. Rissi and S. Rugamer and A. Saggion and T. Saito and M. Salvati and M. Sanchez-conde and K. Satalecka and V. Scalzotto and V. Scapin and C. Schultz and T. Schweizer and M. Shayduk and S. Shore and A. Sierpowska-Bartosik and A. Sillanpaa and J. Sitarek and D. Sobczy'nska and F. Spanier and S. Spiro and A. Stamerra and B. Steinke and J. C. Struebig and T. Suric and L. Takalo and F. Tavecchio and P. Temnikov and T. Terzi'c and D. Tescaro and M. Teshima and D. Torres and H. Vankov and R. Wagner and V. Zabalza and F. Zandanel and R. Zanin and J. Zapatero and C. Pfrommer and A. Pinzke and T. Ensslin and S. Inoue and G. G. Ifae and Edifici Cn. and Campus Uab and E-08193 Bellaterra and Spain and I. N. I. F. Astrophysics and I-00136 Rome and Italy. and Universidad Complutense and E. Madrid and Technische Universitat Dortmund and D-44221 Dortmund and Germany. and Universitat Aut'onoma de Barcelona and Universita' di Padova and Infn and I-35131 Padova and Inst. de Astrof'isica de Canarias and E-38200 La Laguna and Tenerife and U. L'od'z and PL-90236 L'od'z and Poland and T. Observatory and University of Turku and FI-21500 Piikkio and Finland. and D. Elektronen-Synchrotron and D-15738 Zeuthen and E. Zurich and CH-8093 Switzerland and Max-Planck-Institut fur Physik and D. Munchen and E-08028 Barcelona and Universitat Wurzburg and D-97074 Wurzburg and D. Astrof'isica and Universidad and E-38206 La Laguna and Universita' di Udine and I. Trieste and I-33100 Udine and Institut de Ciencies de l'Espai and I. A. D. Andaluc'ia and E. Granada and Croatian Magic Consortium and I. R. Bo{\vs}kovi{\'c} and University of Rijeka and University of Split and HR-10000 Zagreb and Croatia. and University of Southern California and Davis and CA-95616-8677 and Usa and U. Siena and I. Pisa and I-53100 Siena and Inst. for Nucl. Research and Nucl. Energy and B. Sofia and Bulgaria and INAF-Osservatorio Astronomico and I-34143 Trieste and Icrea and E-08010 Barcelona and U. Pisa and I-56126 Pisa and supported by Infn Padova and Now at Centro de Investigaciones Energ'eticas and Medioambientales y Tecnol'ogicas and Madrid and now at Max-Planck-Institut fur Kernphysik and D. Heidelberg and Cita and U. O. Toronto and M5S 3H8 Toronto and Canada. and S. University and SE - 106 91 Stockholm and Sweden. and M. F. Astrophysik and D. Garching and K. University and 606-8502 Kyoto and Japan. and I-23807 Merate}, journal={The Astrophysical Journal}, year={2010}, volume={710}, pages={634-647} }

The Perseus galaxy cluster was observed by the MAGIC Cherenkov telescope for a total effective time of 24.4 hr during 2008 November and December. The resulting upper limits on the gamma-ray emission above 100 GeV are in the range of 4.6-7.5 x 10(-12) cm(-2) s(-1) for spectral indices from -1.5 to -2.5, thereby constraining the emission produced by cosmic rays, dark matter annihilations, and the central radio galaxy NGC 1275. Results are compatible with cosmological cluster simulations for the… CONTINUE READING

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