Speaker
Description
The blazar S5 0716+714 underwent an impressive outburst in January 2015, being detected by many instruments spanning from radio to very high energy (VHE, E$>$ 100GeV). The multi-wavelength dataset collected made possible a deep study of the broadband Spectral Energy Distribution (SED), which typically in blazars is described by two components: the low-energy one, in case of S50716+714 peaked between 10$^{14}$ -10$^{15} Hz, attributed to synchrotron emission from relativistic electrons in the jet, and the high-energy component, generated by inverse-Compton (IC) up-scattering of soft synchrotron photons off the same electrons that have undergone synchrotron cooling. For the first time for this source, the high energy (HE, 0.1 GeV $<$ E $>$100GeV) and VHE data have been collected simultaneously, from Fermi-LAT and MAGIC respectively, allowing the possibility to study the whole high energy part of the broadband SED in an unprecedented high state. In this contribution we will report on the broadband activity of the source during its strongest outburst ever detected so far, focusing on the GeV-TeV connection, described by the multi-wavelength light curves and the SED in the frame of a two-zone modeling.
