Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-12-20
New Astron.Rev. 47 (2003) 577-579
Astronomy and Astrophysics
Astrophysics
4 pages, 2 figures, to appear in The Physics of Relativistic Jets in the Chandra and XMM Era, eds G. Brunetti, D.E. Harris, R.
Scientific paper
10.1016/S1387-6473(03)00097-6
We model jets in low-luminosity (FR I) radio galaxies as intrinsically symmetrical, axisymmetric, decelerating relativistic flows with transverse velocity gradients. This allows us to derive velocity fields and the three-dimensional distributions of magnetic-field ordering and rest-frame emissivity. A conservation-law analysis, combining the kinematic model with X-ray observations of the surrounding IGM, gives the profiles of internal density, pressure, Mach number and entrainment rate along the jets. We summarize our recently-published results on 3C 31 and outline new work on other sources and adiabatic jet models.
Bridle Alan H.
Canvin J. R.
Laing Robert A.
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