Astronomy and astrophysics (Berlin), 2003-11, Vol.410 (3), p.813-821
- Aharonian, F.
- Akhperjanian, A.
- Beilicke, M.
- Bernlöhr, K.
- Börst, H. G.
- Bojahr, H.
- Bolz, O.
- Coarasa, J. A.
- Contreras, J. L.
- Cortina, J.
- Denninghoff, S.
- Fonseca, V.
- Girma, M.
- Goebel, F.
- Götting, N.
- Heinzelmann, G.
- Hermann, G.
- Heusler, A.
- Hofmann, W.
- Horns, D.
- Jung, I.
- Kankanyan, R.
- Kestel, M.
- Kettler, J.
- Kohnle, A.
- Konopelko, A.
- Kranich, D.
- Krawczynski, H.
- Lampeitl, H.
- López, M.
- Lorenz, E.
- Lucarelli, F.
- Mang, O.
- Meyer, H.
- Mirzoyan, R.
- Moralejo, A.
- Oña-Wilhelmi, E.
- Paneque, D.
- Panter, M.
- Plyasheshnikov, A.
- Pühlhofer, G.
- R. de los Reyes
- Rhode, W.
- Ripken, J.
- Rowell, G.
- Sahakian, V.
- Samorski, M.
- Schilling, M.
- Schweizer, T.
- Sevilla, I.
- Siems, M.
- Sobczyńska, D.
- Stamm, W.
- Tluczykont, M.
- Tonello, N.
- Vitale, V.
- Völk, H. J.
- Wagner, R. M.
- Wiedner, C. A.
- Wittek, W.
2003
Details
- Autor(en) / Beteiligte
- Aharonian, F.
- Akhperjanian, A.
- Beilicke, M.
- Bernlöhr, K.
- Börst, H. G.
- Bojahr, H.
- Bolz, O.
- Coarasa, J. A.
- Contreras, J. L.
- Cortina, J.
- Denninghoff, S.
- Fonseca, V.
- Girma, M.
- Goebel, F.
- Götting, N.
- Heinzelmann, G.
- Hermann, G.
- Heusler, A.
- Hofmann, W.
- Horns, D.
- Jung, I.
- Kankanyan, R.
- Kestel, M.
- Kettler, J.
- Kohnle, A.
- Konopelko, A.
- Kranich, D.
- Krawczynski, H.
- Lampeitl, H.
- López, M.
- Lorenz, E.
- Lucarelli, F.
- Mang, O.
- Meyer, H.
- Mirzoyan, R.
- Moralejo, A.
- Oña-Wilhelmi, E.
- Paneque, D.
- Panter, M.
- Plyasheshnikov, A.
- Pühlhofer, G.
- R. de los Reyes
- Rhode, W.
- Ripken, J.
- Rowell, G.
- Sahakian, V.
- Samorski, M.
- Schilling, M.
- Schweizer, T.
- Sevilla, I.
- Siems, M.
- Sobczyńska, D.
- Stamm, W.
- Tluczykont, M.
- Tonello, N.
- Vitale, V.
- Völk, H. J.
- Wagner, R. M.
- Wiedner, C. A.
- Wittek, W.
- Titel
- TeV γ-ray light curve and energy spectrum of Mkn 421 during its 2001 flare as measured with HEGRA CT1
- Ist Teil von
- Astronomy and astrophysics (Berlin), 2003-11, Vol.410 (3), p.813-821
- Ort / Verlag
- EDP Sciences
- Erscheinungsjahr
- 2003
- Link zum Volltext
- Quelle
- EZB Electronic Journals Library
- Beschreibungen/Notizen
- In the first months of 2001 the AGN Mkn 421 showed highly variable, strong TeV activity at flux levels frequently exceeding 1 Crab. Here we present the light curve and energy spectrum of Mkn 421 as measured with the HEGRA stand alone telescope CT1. Around 30% of the data were taken under moonlight conditions. The spectrum shows a significant exponential energy cutoff at around 3.4 TeV. The results from the dark night- and the moon data are in excellent agreement with each other. A significant spectral shape variation depending on the flux level has been found. The TeV light curve is also found to be highly correlated with the X-ray light curve of the RXTE / ASM satellite, showing no significant time lag larger than 0.2 d. The derived correlation coefficient of 0.83 corresponds to a $5.2~\sigma$ significance.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0004-6361eISSN: 1432-0746DOI: 10.1051/0004-6361:20031265Titel-ID: cdi_crossref_primary_10_1051_0004_6361_20031265
- Format
- –
- Schlagworte
- BL Lacertae objects: individual: Mkn 421, gamma rays: observations