| “Magic” Shells |
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| • | Giant
elliptical consuming a small spiral |
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| (1/100
the mass). Giant elliptical hardly |
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| perturbed. Spiral shredded. Peter Quinn |
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| did
simulations in 1984 and succeeded in |
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| reproducing
effect. |
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| • | Shells
form from “quasi-radial” orbits that |
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| are
eccentric, so spend most of their time at |
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| large
radii, depending on energy.
Different |
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| distribution
than the elliptical galaxy stars. |
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