| Spectroscopy
of Ellipticals |
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| • | Top
is K0 III star, M87 off center, M87 near center |
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| • | Stellar
Absorption Lines, note Ca II H&K |
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| • | Properties
of interest are dispersion and shift.
Dispersion |
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| is
especially complicated since it depends on an ensemble |
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| of
stars with different absorption line widiths. |
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