GRB 130603B: No Compelling Evidence for Neutron Star Merger

Figure 2

Comparison between the observed late-time H-band spectral energy density [14, 15] of SHB 130603B, where the JK-band observations were extrapolated to the H-band and corrected for line of sight extinction [16], and that expected from the CB model fit of the X-ray afterglow shown in Figure 1.