The rise and fall of the compact jet in GRO J1655-40
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Migliari, Simone and Tomsick, John A. and Markoff, Sera and Kalemci, Emrah (2007) The rise and fall of the compact jet in GRO J1655-40. In: 6th Microquasar Workshop: Microquasars and Beyond, Como, Italy (Accepted/In Press)
Official URL: http://pos.sissa.it//archive/conferences/033/017/MQW6_017.pdf
In this work, we present some preliminary results on a multi-wavelength (radio/infrared/optical/X-ray) study of GRO J1655-40 during its 2005 outburst. We focus on the broadband spectral energy distribution during the different stages of the outburst. In particular, using this unprecedented coverage, and especially thanks to the new constraints given in the mid-IR by Spitzer, we can test the physical self-consistent disk-jet model during the hard state, where the source shows radio emission from a compact jet. The hard state broadband spectra of the observations during the decay of the outburst, are fairly well fit using the jet model with parameters overall similar to those found for Cyg X-1 and GX 339-4 in a previous work. However, we find that, compared to the other two BHs, GRO J1655-40 has a much higher jet power (at least a factor of 3), and that, most notably, the model seems to underestimate the radio emission
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