Effects of the Magnetic Field on the Hα Emission from Jets |
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| Authors: | Fabio de Colle Alejandro Raga |
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| Institution: | 1. Instituto de Astronomía, UNAM, Ap, 70-264, D.F., México
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| Abstract: | We present results of MHD axisymmetrical cylindrical simulations performed to study Hα emission maps from jets, with a toroidal field geometry for the magnetic field. Our code uses a linear Riemann solver, integrates equations in 2.5 dimensions and includes the calculation of the ionization fraction and the effects of the emission due to the collisional excitation of O I] and O II] lines, radiative recombination of H and the collisional ionization of H and excitation of Lyman-α. The simulations with variable ejection velocities show that the magnetic field produces an increase in the emission from all of the knots except for the first bow shock. |
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