Matter infall in collapsing molecular cloud cores with an axial magnetic field |
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| Authors: | Mohsen Nejad-Asghar |
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| Institution: | (1) UCO/Lick Observatory, University of California, Santa Cruz, Santa Cruz, CA 95064, USA |
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| Abstract: | The magnetic fields affect collapse of molecular cloud cores. Here, we consider a collapsing core with an axial magnetic field
and investigate its effect on infall of matter and formation of accretion disk. For this purpose, the equations of motion
of ions and neutral infalling particles are numerically solved to obtain the streamlines of trajectories. The results show
that in a non-steady state of ionization and ion–neutral coupling, which is not unexpected in the case of infall, the radius
of accretion disk will be larger as a consequence of axial magnetic field. |
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