CAOSP abstracts, Volume: 27, No.: 3, year: 1998
- Author(s): RODE, M.; MAITZEN, H.M; PAUNZEN, E.
- Journal: Contributions of the Astronomical Observatory Skalnate Pleso,
vol. 27, no. 3, p. 255-257.
- Date: 04/1998
- Title: Statistics on the spectral classification of CP2 stars in the Southern Sky
- Keyword(s): STARS: CP2, SPECTRAL CLASSIFICATION, STATISTICS
- Pages: 255 -- 257
A number of about 1500 spectroscopically classified CP2 stars in the
southern sky (delta = -90 deg to -12 deg) was extracted from the Michigan
Catalogue (Vols. I - IV). This sample was compared with the classification
from Bidelman & Mc Connell. We confirmed the spectral classification
with the known photometric peculiarity indices in the Geneva system and
in the 3-filter Delta a system. 10 % of these stars show discordance between
their respective types from the Michigan and Bidelman catalogues. Several
objects were measured with a CCD in the Delta a system in spring 1995.
Eight stars are peculiar in Delta a. Furthermore, we have investigated
the galactic distribution of all programme stars. We conclude that the
distribution resembles the one of early-type stars, where the hotter
(= Silicon) stars are more concentrated towards the galactic plane than
the cooler (= Strontium) objects.
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