Fig. 4
The SED of 1FGL J0137.8+5814. From lower to higher frequencies we report radio data up to 5 GHz (red circles) and data from 2MASS (orange circles), SDSS-DR8 (yellow circles), Swift-XRT (light green circles), XMM-MOS (dark green circles), Swift-BAT (cyan square), Integral-IBIS (blue squares), and Fermi-LAT (magenta squares). Data are fitted with a power-law model in the radio band; a log-parabolic model is used to emphasise the synchrotron and inverse Compton component of this high-energy synchrotron peak (HSP) BL Lac object.
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