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Re: Re: Polar Jets Of Neutron Stars (NS) And Black Holes (BH).

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Posted by Alexander on January 30, 2001 19:33:32 UTC

Because jets are originating extremely close to the center of accretion disc, (where velocities are close to c - just a few miles for a small BH, and a few million miles for Milky Way BH. Of course, from distance millions of billions of miles you can not see such small distances, and the jets will look almost as perfect straight lines (diverging cones from point of origin). But if you were to have a scope which have enormous resolution, you would see how tiny amount of plasma cloud near event horizon "bends" from circling and escapes in a funnel-like motion up and down.

When jets are a few BH radius away, they do not lose any more velocity and can be moving light-years in space before weak galactic magnetic field and rare collisions dissipate them.

(And again, fraction of plasma having above escape velocity is so small that it does not carry much energy away).

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