Dr. Yosuke Mizuno (Marshall) visit our group and give colloquium speech

Feb 12, 2010

“Current-Driven Kink Instability in Relativistic Jets”

Highly-ionized fast accretion-disk winds have been suggested as an explanation for a variety of observed absorption and emission features in the X-ray spectra of Active Galactic Nuclei. Simple estimates have suggested that these flows may be massive enough to be significant for the accretion process and might even be involved in creating the link between supermassive black holes and their host galaxies.

However, testing these hypotheses, and quantifying the outflow signatures, is no easy task and requires high-quality theoretical model spectra for quantitative comparison. I will present our work on calculating synthetic spectra for simple AGN outflow models and demonstrate their ability to reproduce most of the hard X-ray spectroscopic features observed in real AGN spectra.