Radiative Collimation of Electron--Positron Jets II

Details Radiative Collimation of Electron--Positron Jets II Radiative Collimation of Electron--Positron Jets II

Oct 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003pasj...55..953s&link_type=abstract

Publications of the Astronomical Society of Japan, Vol.55, No.5, pp. 953-958

Astronomy and Astrophysics

Astronomy

1

Accretion, Accretion Disks, Accretion-Disk Winds, Astrophysical Jets, Galaxies: Active, X-Ray: Stars

Scientific paper

We consider a collimation and acceleration mechanism for relativistic jets emanating from an inner region of a relativistic accretion disk surrounding a Kerr black hole, with Keplerian angular momentum under disk radiation fields, taking into account the effect of radiation drag. When the jets consist of electron-positron pair plasmas and the disk luminosity is of the order of the Eddington luminosity, we found that the terminal speed is about 0.9 c for a Schwarzschild case, while it becomes ˜ 0.96 c for an extreme Kerr case. In such a case, the opening angle of jets is of the order of 5°. We also examined the opening angle and the listing degree when the disk radiation is not axisymmetric, but has a one-armed pattern. For the case of 0.3 amplitude, the opening angle is of the order of a few degrees, and the jet direction is bent by several degrees to 10°.

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