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Fig. 5.


Time-resolved SEDs of PKS 0346−27. The color coding indicates different states of activity (see Sect. 4). The corresponding activity states for each SED, indicated in the legend of each panel, are (top left to bottom right): quiescent, flare A, 2018 Apr. 20, 2018 May 16, 2018 May 20 and 2018 Oct. 18, respectively. The lines represent the resulting model SED for each state, where the solid line is the total emission, and the dashed line is the EBL-absorbed total emission. The different emission components included in the model are listed in the legend of the quiescent SED, and include the dust torus, Sakura-Sunyaev (SS) accretion disk, synchrotron, synchrotron self-Compton (SSC) and external Compton (EC) emission. In the quiescent SED, an adaptation of the optical spectrum from Baker et al. (1999) is included (B99 in the legend). The black solid lines indicate the CTA south sensitivity curves, for 50 h of integration in the quiescent and Flare A states, and 5 h of integration for the daily SEDs.

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