Extremely rapid bursts of TeV photons from the active galaxy Markarian 421

The observation of two dramatic outbursts of TeV photons from the active galaxy Markarian 421 is reported. The data suggest that the emission region is extremely small, perhaps even smaller than the Solar System.

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Bibliographic Details
Published inNature (London) Vol. 383; no. 6598; pp. 319 - 320
Main Authors Gaidos, J. A, Akerlof, C. W, Biller, S, Boyle, P. J, Breslin, A. C, Buckley, J. H, Carter-Lewis, D. A, Catanese, M, Cawley, M. F, Fegan, D. J, Finley, J. P, Gordo, J. Bussöns, Hillas, A. M, Krennrich, F, Lamb, R. C, Lessard, R. W, McEnery, J. E, Masterson, C, Mohanty, G, Moriarty, P, Quinn, J, Rodgers, A. J, Rose, H. J, Samuelson, F, Schubnell, M. S, Sembroski, G. H, Srinivasan, R, Weekes, T. C, Wilson, C. L, Zweerink, J
Format Journal Article
LanguageEnglish
Published London Nature Publishing 26.09.1996
Nature Publishing Group
Subjects
Active galaxies
Astronomy
Astrophysics
Atoms & subatomic particles
Earth, ocean, space
Emission
Exact sciences and technology
Flux
Gamma-ray sources ; gamma-ray bursts
Mathematical models
Neutron flux
Outbursts
Photons
Sky
Stars & galaxies
Stellar systems. Galactic and extragalactic objects and systems. The universe
Unidentified sources and radiation outside the solar system
Active galaxies
Gamma radiation
Markarian galaxies
Cosmic photons
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Summary:The observation of two dramatic outbursts of TeV photons from the active galaxy Markarian 421 is reported. The data suggest that the emission region is extremely small, perhaps even smaller than the Solar System.
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ISSN:0028-0836
1476-4687
DOI:10.1038/383319a0