The Observer’s Guide to the Gamma-Ray Burst Supernova Connection

Figure 17

Observations of KNe associated with SGRBs: (a) GRB 130603B, from [395]. The decomposed optical and NIR LCs show an excess of flux in the NIR () filter, which is consistent with theoretical predictions of light coming from a KN. (b) GRB 060614, from [396]. Multiband LCs show an excess in the optical LCs ( and ), which once the AG light is removed, the resultant KN LCs match those from hydrodynamic simulations of a BH-NS merger (ejecta velocity of ~0.2 and an ejecta mass of 0.1  [397]). (c) SEDs of the multiband observations of GRB 060614, also from [396]. The early SEDs are well described by a power law spectrum, which implies synchrotron radiation. However, at later epochs the SEDs are better described by thermal, black body spectra, with peak temperatures of ~2700 K, which are in good agreement with theoretical expectations [398].

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