Evidence for a temperature rise in the outer layers of α Lyrae,fromCopernicus observations of lyman-α |
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| Authors: | Françoise Praderie Eduardo Simonneau Theodore P Snow Jr |
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| Institution: | 1. Institut d'Astrophysique, Paris, France
2. Princeton University Observatory, Princeton, N.J., USA
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| Abstract: | The wings of Lα in α Lyr (A0 V), observed by theCopernicus satellite, cannot be interpreted if one assumes a classical LTE model photosphere. We argue that the electron temperature must increase outwards over the surface value reached in radiative equilibrium. |
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