292
M. Méndez and T. M. Belloni
Fig. 6.16
Left: Spectral parameters of the lower and the upper kHz QPOs in 4U 1636−53 as a function of the QPO frequency. Right: Same as left panel, but
with the frequency of the lower kHz QPO shifted up by 300 Hz [138]
M. Méndez and T. M. Belloni
Fig. 6.16
Left: Spectral parameters of the lower and the upper kHz QPOs in 4U 1636−53 as a function of the QPO frequency. Right: Same as left panel, but
with the frequency of the lower kHz QPO shifted up by 300 Hz [138]