Polar jet
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- You may be looking for relativistic jet, aka an accretion disc jet.
A polar jet is a phenomenon often seen in astronomy. It is usually caused by the dynamic interactions within an accretion disc. The largest polar jets are those seen in active galaxies such as quasars. Other systems which often contain polar jets include cataclysmic variable stars, X-ray binaries and T Tauri stars. Herbig-Haro objects are caused by the interaction of polar jets with the interstellar medium.
Unsolved problems in physics: Why do the discs surrounding certain objects, such as the centers of active galaxies, emit radiation jets along their polar axes?
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