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3D SIMULATIONS OF DISK ACCRETION TO AN INCLINED DIPOLE. HOT SPOTS AND VARIABILITY Authors: Romanova M.M., Ustyugova G.V., Koldoba A.V., Lovelace R.V.E. |
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3D SIMULATIONS OF DISK ACCRETION TO AN INCLINED DIPOLE. HOT SPOTS AND VARIABILITY Authors: Romanova M.M., Ustyugova G.V., Koldoba A.V., Lovelace R.V.E. |
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Fig. 1 Matter flow near the star and hot spots for the case of a relatively warm disk (Td =0 .03). The square panels show the surfaces of the density in the magnetospheric .ows (green color corresponds to r = 0.3 - 0.4, while yellow-green color to r = 0.6). Red lines are sample magnetic field lines; the dark-green lines show the sample streamlines of matter flow. The circular panels show density distribution in the hot spots for different misalignment angles Q. For Q = 15°, 30° and 45°, the magnetic axis is directed towards the observer, while for Q = 60°, 75° and 90°, it is directed at an angle 45° relative to the observer. It is shown by the crosses in the circular panels. The direction of the rotation axis is shown with the open circles. |
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Fig. 2 Same as Figure 1 but for cooler disk (Td =0 .01). |
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Fig. 4 An X - Z slice through the middle of the funnel stream at Q =15°. The contour lines show the plane cross-section of the density distribution inside the funnel stream.The density changes exponentially from r =0 .2 (blue) to r =2 .0 (red).The density in the corona above the disk is r =0 .01 - 0.02. Red lines with arrows show selected magnetic field lines. The magnetic moment and the rotation axis W are shown.
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