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Dotini
Gold Member
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http://www.newscientist.com/article/mg21028174.900-universes-highest-electric-current-found.html
A COSMIC jet 2 billion light years away is carrying the highest electric current ever seen: 10^18 amps, equivalent to a trillion bolts of lightning.
Philipp Kronberg of the University of Toronto in Canada and colleagues measured the alignment of radio waves around a galaxy called 3C303, which has a giant jet of matter shooting from its core. They saw a sudden change in the waves' alignment coinciding with the jet. "This is an unambiguous signature of a current," says Kronberg.
http://arxiv.org/abs/1106.1397
We present radio emission, polarization, and Faraday rotation maps of the radio jet of the galaxy 3C303. From this data we derive the magnetoplasma and electrodynamic parameters of this $50$ kpc long jet. For one component of this jet we obtain for the first time a direct determination of a {\it galactic}-scale electric current ($\sim 10^{18}$ A), and its direction $-$ {\it positive} away from the AGN. Our analysis strongly supports a model where the jet energy flow is mainly {\it electromagnetic}.
Respectfully submitted,
Steve
A COSMIC jet 2 billion light years away is carrying the highest electric current ever seen: 10^18 amps, equivalent to a trillion bolts of lightning.
Philipp Kronberg of the University of Toronto in Canada and colleagues measured the alignment of radio waves around a galaxy called 3C303, which has a giant jet of matter shooting from its core. They saw a sudden change in the waves' alignment coinciding with the jet. "This is an unambiguous signature of a current," says Kronberg.
http://arxiv.org/abs/1106.1397
We present radio emission, polarization, and Faraday rotation maps of the radio jet of the galaxy 3C303. From this data we derive the magnetoplasma and electrodynamic parameters of this $50$ kpc long jet. For one component of this jet we obtain for the first time a direct determination of a {\it galactic}-scale electric current ($\sim 10^{18}$ A), and its direction $-$ {\it positive} away from the AGN. Our analysis strongly supports a model where the jet energy flow is mainly {\it electromagnetic}.
Respectfully submitted,
Steve