Giant CP Stars? |
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Authors: | L O Lodén A Sundman |
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Institution: | 1. Astronomiska Observatoriet, Box 515, S-75120, Uppsala, Sweden 2. Stockholms Observatorium, S-13336, Saltsj?baden, Sweden
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Abstract: | This study is part of an investigation of the possibility of using chemically peculiar (CP) stars to map local galactic structure.
Correct luminosities of these stars are therefore crucial. CP stars are generally regarded as main-sequence or near-main-sequence
objects. However, some CP stars have been classified as giants.
A selection of stars, classified in literature as CP giants, are compared to normal stars in the same effective temperature
interval and to ordinary ‘non giant’ CP stars. We find no clear confirmation of a higher luminosity for ‘CP giants’, than
for CP stars in general. In addition, CP characteristics seem to be individual properties not repeated in a component star
or other cluster members. |
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Keywords: | spectral classification stars chemically peculiar |
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