Bibcode
Acciari, V. A.; Aliu, E.; Arlen, T.; Bautista, M.; Beilicke, M.; Benbow, W.; Bradbury, S. M.; Buckley, J. H.; Bugaev, V.; Butt, Y.; Byrum, K.; Cannon, A.; Celik, O.; Cesarini, A.; Chow, Y. C.; Ciupik, L.; Cogan, P.; Cui, W.; Dickherber, R.; Fegan, S. J.; Finley, J. P.; Fortin, P.; Fortson, L.; Furniss, A.; Gall, D.; Gillanders, G. H.; Grube, J.; Guenette, R.; Gyuk, G.; Hanna, D.; Holder, J.; Horan, D.; Hui, C. M.; Humensky, T. B.; Imran, A.; Kaaret, P.; Karlsson, N.; Kieda, D.; Kildea, J.; Konopelko, A.; Krawczynski, H.; Krennrich, F.; Lang, M. J.; LeBohec, S.; Maier, G.; McCann, A.; McCutcheon, M.; Millis, J.; Moriarty, P.; Ong, R. A.; Otte, A. N.; Pandel, D.; Perkins, J. S.; Petry, D.; Pohl, M.; Quinn, J.; Ragan, K.; Reyes, L. C.; Reynolds, P. T.; Roache, E.; Roache, E.; Rose, H. J.; Schroedter, M.; Sembroski, G. H.; Smith, A. W.; Swordy, S. P.; Theiling, M.; Toner, J. A.; Varlotta, A.; Vincent, S.; Wakely, S. P.; Ward, J. E.; Weekes, T. C.; Weinstein, A.; Williams, D. A.; Wissel, S.; Wood, M.; Walker, R. C.; Davies, F.; Hardee, P. E.; Junor, W.; Ly, C.; Aharonian, F.; Akhperjanian, A. G.; Anton, G.; Barres de Almeida, U.; Bazer-Bachi, A. R.; Becherini, Y.; Behera, B.; Bernlöhr, K.; Bochow, A.; Boisson, C.; Bolmont, J.; Borrel, V.; Brucker, J.; Brun, F.; Brun, P.; Bühler, R.; Bulik, T.; Büsching, I. et al.
Bibliographical reference
Science, Volume 325, Issue 5939, pp. 444- (2009).
Advertised on:
7
2009
Journal
Citations
209
Refereed citations
144
Description
The accretion of matter onto a massive black hole is believed to feed
the relativistic plasma jets found in many active galactic nuclei (AGN).
Although some AGN accelerate particles to energies exceeding
1012 electron volts and are bright sources of
very-high-energy (VHE) γ-ray emission, it is not yet known where
the VHE emission originates. Here we report on radio and VHE
observations of the radio galaxy Messier 87, revealing a period of
extremely strong VHE γ-ray flares accompanied by a strong increase
of the radio flux from its nucleus. These results imply that charged
particles are accelerated to very high energies in the immediate
vicinity of the black hole.
Related projects
Particle Astrophysics
The MAGIC Collaboration is integrated by 20 research institutes and university departments from Armenia, Bulgaria, Finland, Germany, Italy, Poland, Spain, Switzerland and USA. The collaboration comprises two 17m diameter telescopes, located at the Roque de los Muchachos Observatory, designed to measure the Cherenkov radiation associated with
Ramón
García López