Image Details
Caption: Figure 6.
Multifrequency light curves of 4C +21.35 between 2010 April 9 and August 4 (MJD 55295–55412). The data sets were collected (from top to bottom) by Fermi-LAT (E > 100 MeV; in units of 10−6 photons cm−2 s−1; taken from Tanaka et al. 2011), Swift-XRT (0.3–10 keV; in units of 10−12 erg cm−2 s−1), Swift-UVOT (m2 filter; in units of mJy), Swift-UVOT (U filter, open circles; in units of mJy), Abastumani, ATOM, Crimean, KVA, St. Petersburg (R-band, filled triangles; in units of mJy), Effelsberg, Medicina, Metsähovi, OVRO, UMRAO (15 GHz: filled circles, 23 GHz: open squares, 37 GHz: open triangles; in units of Jy). The downward arrows indicate the times of the VHE detections by MAGIC. For clarity the m2, u, R and 15 GHz bands errors (typically 5% or less) and the γ-rays errors are not shown.
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