| Interstellar Absorption: Then
Again |
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| * | The detection of
the O K-edge was |
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| later explicitly
confirmed in |
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| observations of
the Crab performed |
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| with the FPCS on Einstein. |
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| * | In addition, to
the edge itself, |
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| Schattenburg
& Canizares also |
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| found weak
evidence for the 1s-2p |
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| absorption line
in atomic oxygen. |
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| * | The derived
oxygen abundance |
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| agreed well with
the earlier Charles |
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| et al. result,
however the FPCS |
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| indicated a
significantly higher |
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| total column
density to the source. |
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| Schattenburg
& Canizares, 1986, |
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| Ap. J.,
301, 759. |
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