| Cluster Cooling Flows: Then
Again |
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| * | ASCA provided
lower spectral |
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| resolution data,
over a broader |
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| energy range,
for a larger sample of |
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| cooling flow
clusters. |
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| * | The spectra
exhibited some |
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| systematic
discrepancies from |
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| standard cooling
flow predictions. |
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| * | This was ascribed
partially to |
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| uncertainties in
the atomic database |
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| (especially for
the Fe L-shell |
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| transitions),
and partially to excess |
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| absorption within
the cluster. |
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| * | Nevertheless, the
data clearly |
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| indicated a soft
excess for those |
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| clusters
expected to exhibit cooling |
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| flows. |
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| Fabian et
al., 1994, Ap. J., 436, L63. |