Discovery of VHE gamma -rays from the blazar 1ES 1215+303 with the MAGIC telescopes and simultaneous multi-wavelength observations

Discovery of VHE gamma -rays from the blazar 1ES 1215+303 with the MAGIC telescopes and simultaneous multi-wavelength observations

The authors present the discovery of very high energy (VHE) ...-ray emission from the BL Lac object 1ES 1215+303 by the MAGIC telescopes and simultaneous multi-wavelength data in a broad energy range from radio to ...-rays. They study the VHE ...-ray emission from 1ES 1215+303 and its relation to th...

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Veröffentlicht in:Astronomy and astrophysics (Berlin) 2012-08, Vol.544, p.1-1
Hauptverfasser: Aleksic, J, Alvarez, E A, Antonelli, L A, Antoranz, P, Ansoldi, S, Asensio, M, Backes, M, de Almeida, U Barres, Barrio, J A, Bastieri, D, Orito, R, Paiano, S, Paneque, D, Paoletti, R, Pardo, S, Paredes, J M, Partini, S, Perez-Torres, M A, Persic, M, Pilia, M, Gonzalez, J Becerra, Pochon, J, Prada, F, Moroni, P G Prada, Prandini, E, Gimenez, I Puerto, Puljak, I, Reichardt, I, Reinthal, R, Rhode, W, Ribo, M, Bednarek, W, Rico, J, Ruegamer, S, Saggion, A, Saito, K, Saito, T Y, Salvati, M, Satalecka, K, Scalzotto, V, Scapin, V, Schultz, C, Berger, K, Schweizer, T, Shore, S N, Sillanpaeae, A, Sitarek, J, Snidaric, I, Sobczynska, D, Spanier, F, et. al
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Sprache:eng
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Zusammenfassung:The authors present the discovery of very high energy (VHE) ...-ray emission from the BL Lac object 1ES 1215+303 by the MAGIC telescopes and simultaneous multi-wavelength data in a broad energy range from radio to ...-rays. They study the VHE ...-ray emission from 1ES 1215+303 and its relation to the emissions in other wavelengths. Triggered by an optical outburst, MAGIC observed the source in 2011 January-February for 20.3 h. The target was monitored in the optical R-band by the KVA telescope that also performed optical polarization measurements. The MAGIC observations of 1ES 1215+303 carried out in 2011 January-February resulted in the first detection of the source at VHE with a statistical significance of 9.4 sigma . Simultaneously, the source was observed in a high optical and X-ray state. In 2010 the source was observed in a lower state in optical, X-ray, and VHE, while the GeV ...-ray flux and the radio flux were comparable in 2010 and 2011. (ProQuest: ... denotes formulae/symbols omitted.)
ISSN:0004-6361
1432-0746