Stellar atmospheres

Part 2 — TABLE XXI

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STELLAR ATMOSPHERES EDITOR’S FOREWORD

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TABLE I TABLE II TABLE III TABLE IV

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TABLE V TABLE VI TABLE VII TABLE VIII TABLE IX

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TABLE XI TABLE XII TABLE XIII TABLE XIV TABLE XV TABLE XVI

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TABLEXVIII TABLE XIX NOTES ON OBSERVATIONAL MATERIAL

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TABLE XX TABLE XXI TABLE XXII

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TABLE XXIII TABLE XXIV

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TABLE XXVII TABLE XXVIII TABLE XXIX

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TABLE XXX TABLE XXXI

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TABLE XXXII TABLE XXXIII TABLE XXXIV SUBJECT INDEX NAME INDEX

Atom Ionization Potential Excitation Potential Max.

He+ 54.2 48.2 35000°

C+ 24.3 18.0 l6000

He 24.7 21.1 10000

Si++ 31.7 4.8 18000

Si+++ 45.0 24.0 25000

The values given in the preceding table constitute the only contribution that can be made by this form of ionization theory to the formation of a stellar temperature scale. Values assigned to intermediate classes must be conjectural. From the observed changes of intensity from class to class, temperatures may be interpolated roughly, and a temperature scale, formed on these general grounds, is reproduced in Table XXII. Values not derived from observed maxima are italicized.

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