On the radii of Ap and Am stars |
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Authors: | G S D Babu B S Shylaja |
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Institution: | 1. Indian Institute of Astrophysics, Bangalore, India
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Abstract: | The radii of several Ap and Am stars have been compared with those of the normal A stars of the Main Sequence. Though the brighter Ap stars have a little larger radii than the Main-Sequence stars, they may not be much different from those of the slightly evolved normal A stars. The Am stars have radii with which they appear to be merging with those of the cooler A stars of the Main Sequence. The Ap stars have radii predominantly in the range of 1.8 to 3.4R ⊙, while the Am stars are mainly concentrated between 1.8 and 2.2R ⊙. |
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