Spectra of J0948 (top row), and in the bottom row from left to right J0324, J1505, and J2007. The spectra of J0948 and J2007 were modeled with Galactic absorption, thermal comptonization, and a redshifted power law. The spectrum of J1505 was modeled with Galactic absorption and a single power law, and that of J0324 with Galactic absorption and a broken power law. The offsets visible in J1505 and J2007 are due to nonsimultaneous observations of different satellites.