Long Term Simulations of Astrophysical Jets(Poster)
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概要
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We have performed self-consistent 2.5-dimensional nonsteady MHD numerical simulations of jet formation, including the dynamics of accretion disks. Although the previous nonsteady MHD simulations for astrophysical jets revealed that the characteristics of nonsteady jets are very similar to those of steady jets, the calculation time of these simulations is very short compared with the time scale of observed jets. Thus we have investigated long term evolutions of the mass accretion rate (M_a), mass outflow rate (M_w), and energy of the toroidal magnetic field (E_<mgt>). We found that the jet is ejected intermittently with a period of around 2π which is similar to the growth time of the magnetorotational instability (MRI).
- 理論物理学刊行会の論文
- 2004-11-15
著者
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Shibata Kazunari
Kwasan And Hida Observatories Kyoto University
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Ibrahim Ahmed
Kwasan Observatory Kyoto University
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Sato Kazuhisa
Department Of Astronomy Kyoto University
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Shibata Kazunari
Kwasan And Hida Observatories Department Of Astronomy Kyoto University
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