Figure 1 from A Luminous and Isolated Gamma-Ray Flare from the Blazar B2 1215+30

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A Luminous and Isolated Gamma-Ray Flare from the Blazar B2 1215+30

Authors: A. U. Abeysekara, S. Archambault, A. Archer, W. Benbow, R. Bird, M. Buchovecky, J. H. Buckley, V. Bugaev, K. Byrum, M. Cerruti, X. Chen, L. Ciupik, W. Cui, H. J. Dickinson, J. D. Eisch, M. Errando, A. Falcone, Q. Feng, J. P. Finley, H. Fleischhack, L. Fortson, A. Furniss, G. H. Gillanders, S. Griffin, J. Grube, M. Hütten, N. Håkansson, D. Hanna, J. Holder, T. B. Humensky, C. A. Johnson, P. Kaaret, P. Kar, M. Kertzman, D. Kieda, M. Krause, F. Krennrich, S. Kumar, M. J. Lang, G. Maier, S. McArthur, A. McCann, K. Meagher, P. Moriarty, R. Mukherjee, T. Nguyen, D. Nieto, R. A. Ong, A. N. Otte, N. Park, V. Pelassa, M. Pohl, A. Popkow, E. Pueschel, J. Quinn, K. Ragan, P. T. Reynolds, G. T. Richards, E. Roache, C. Rulten, M. Santander, G. H. Sembroski, K. Shahinyan, D. Staszak, I. Telezhinsky, J. V. Tucci, J. Tyler, S. P. Wakely, O. M. Weiner, A. Weinstein, A. Wilhelm, D. A. Williams, S. Fegan, B. Giebels, D. Horan, A. Berdyugin, J. Kuan, E. Lindfors, K. Nilsson, A. Oksanen, H. Prokoph, R. Reinthal, L. Takalo, and F. Zefi

2017 The Astrophysical Journal 836 205.

Provider: AAS Journals

Caption: Figure 1.

TeV (top), GeV (middle), and optical (bottom) light curves of B2 1215+30 in 2013 (left panels) and 2014 (right panels). Fluxes are calculated in 1-day bins for VERITAS. Fermi-LAT fluxes are calculated with 3-day integration bins (blue plus signs) and 1-day bins (orange plus signs) around the time of the 2014 flare. Downward-pointing triangles indicate 95% c.l. upper limits derived from the Fermi-LAT data for time bins with signal smaller than 2σ. The yearly averaged TeV flux in 2011 (﹩8.0\times {10}^{-12}\,{\mathrm{cm}}^{-2}\,{{\rm{s}}}^{-1}﹩; Aliu et al. 2013) is shown by a red dashed line, and a blue dashed line indicates the average GeV flux from Acero et al. (2015). Statistical errors on the Tuorla optical fluxes are smaller than the data points.

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