Effects of the Magnetic Field on the Hα Emission from Jets

Details Effects of the Magnetic Field on the Hα Emission from Jets Effects of the Magnetic Field on the Hα Emission from Jets

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004ap%26ss.293..173d&link_type=abstract

Astrophysics and Space Science, v. 293, Issue 1, p. 173-180 (2004).

Astronomy and Astrophysics

Astrophysics

5

Ism:, Jets And Outflows, Mhd, Methods:, Numerical, Herbig-Haro Objects

Scientific paper

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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