Figure 5
Broad-band spectrum for four epochs of contemporaneous radio and infrared data, three of which also include X-ray points. As the source is in a softer state by this time, the radio spectrum (of the first epoch) is relatively steep and optically thin. The infrared points (from Nagata et al. 2003) are in excess of the radio, suggesting that emission from the accretion disc and/or irradiation of the companion star dominate this region of the spectrum. This is in direct contrast to the low/hard state spectra of, for example, Fender (2001) and Markoff et al. (2001) where the jet spectrum dominates.

Broad-band spectrum for four epochs of contemporaneous radio and infrared data, three of which also include X-ray points. As the source is in a softer state by this time, the radio spectrum (of the first epoch) is relatively steep and optically thin. The infrared points (from Nagata et al. 2003) are in excess of the radio, suggesting that emission from the accretion disc and/or irradiation of the companion star dominate this region of the spectrum. This is in direct contrast to the low/hard state spectra of, for example, Fender (2001) and Markoff et al. (2001) where the jet spectrum dominates.

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