Stability of a relativistic rotating electron-positron jet | Zendy

Ya. N. Istomin | Zendy; V. I. Pariev | Zendy

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Stability of a relativistic rotating electron-positron jet

Author(s) -

Ya. N. Istomin,

V. I. Pariev

Publication year - 1994

Publication title -

monthly notices of the royal astronomical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.058

H-Index - 383

eISSN - 1365-8711

pISSN - 0035-8711

DOI - 10.1093/mnras/267.3.629

Subject(s) - physics , jet (fluid) , radius , electron , magnetic field , positron , atomic physics , rotation (mathematics) , rotational symmetry , omega , astrophysical jet , classical mechanics , mechanics , astrophysics , nuclear physics , active galactic nucleus , quantum mechanics , galaxy , geometry , computer security , mathematics , computer science

In the force-free approximation, an electron-positron jet is shown to be stable to axisymmetric perturbations for all velocities of longitudinal motion and rotation. The stability of the jet is a result of the shear of the magnetic field, which prohibits the convective motion of a charged fluid in the radial direction. The dispersion curves ω=ω(k∥) have a minimum for k∥ 0 ≃1/R, where R is the jet radius. This results in the accumulation of perturbations inside the jet with wavelengths of the order of the jet radius. This type of oscillatory structure is observed in kiloparsec jets, in particular in 3C 273, which is evidently an electron-positron beam

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