Extended Data Fig. 3: Model-predicted synchrotron spectrum.
The blue line shows the median synchrotron spectrum as a function of photon energy Eγ predicted by our best-fitting model, and the shaded blue bands around it show the 68% and 95% confidence intervals. The quantity shown includes the effects of interstellar absorption between Terzan 5 and the Sun, assuming a hydrogen column NH = 2 × 1022 cm−2 (ref. 28); the sharp features visible below 1 keV correspond to absorption edges. The black dashed line is an approximate limit corresponding to \({L}_{X}=4\pi {d}_{Ter5}^{\,2}{E}_{\gamma }^{\,2}(d{\Phi }_{\gamma }/d{E}_{\gamma })=2\times 1{0}^{33}{{{\rm{erg}}}}\,{s}^{-1}\), the X-ray luminosity estimated by ref. 28.
