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Open AccessArticle10.1017/s0252921100021059

CP Stars at High Galactic Latitude: Photometry Near the Galactic Poles ,

Hartmut Schneider-1993-01-01-International Astronomical Union Colloquium

TL;DRAbstract

Abstract The results of photometric observations of early type stars in regions around the Galactic poles are presented. The aim of these investigations was to search for CP2 and CP1 and to establish new and more precise frequencies for such objects including fainter stars. A mean frequency of 24.7% was found for the CP1 stars, 23.7% for the hot CP2, and 11.7% for the cooler ones, but with large differences between the two regions investigated. Furthermore, a substantial number of stars (20) were found to be good candidates for λ Boo stars.

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Abstract The results of photometric observations of early type stars in regions around the Galactic poles are presented. The aim of these investigations was to search for CP2 and CP1 and to establish new and more precise frequencies for such objects including fainter stars. A mean frequency of 24.7% was found for the CP1 stars, 23.7% for the hot CP2, and 11.7% for the cooler ones, but with large differences between the two regions investigated. Furthermore, a substantial number of stars (20) were found to be good candidates for λ Boo stars.

Keywords

StarsPhysicsPhotometry (optics)AstrophysicsAstronomy

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