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Gallery of Theory & Computational Astronomy in
IAA... |
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These
pictures demostrate the simulations of 3 kpc arm of the
Milky Way. It shows that the spiral waves generated by
outer Lindblad resonance (OLR) which is located at 3 kpc
is tight and the other spiral waves generated by inner
Lindblad resonance (ILR) is more open. This result confirms
the spiral density wave theory. Furthermore, the bar-spiral
structure is observed in the central region of the Milky
Way. |
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If
the accretion disk around a rotating black hole is threaded
by a magnet field, The rotation of the disk and the black
hole (and hence the spacetime) will cause the field lines
to form a helix-like structure. As matter accretes onto
the black hole, part of it is ejected along the field
lines, forming a collimated outflow. If there are field
lines connecting the disk and the black hole, the rotational
energy of the black hole can also be extracted to power
the jet. |
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A
TIDALLY DISTORTED AND INFLATED JUPITER: with a distance
from its Sun less than one-tenth of the distance between
Mercury and our Sun, a young extrasolar Jupiter at the
age of one million years is heated and inflated up to
one-third of the size of our Sun due to tidal friction.
Consequently, the Jupiter spills its gas to its Sun and
gradually migrates away from its Sun. The picture of the
extrasolar Sun illustrated here is made using ultraviolet
light emitted by ionized Helium atoms in our Sun detected
by the SOHO satellite. |
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These
are momentum 0, 1, and 2 plots for MHD collapse calculations
of magnetized, rotating, singular isothermal toroids.
Stars are believed
to have formed from the collapse of molecular clouds....(more) |
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Index |
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