Spectroscopic study of the weak magnetic star HD220825-κPsc |
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| Authors: | Yu V Glagolevskij I Kh Iliev I K Stateva G A Chountonov |
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| Institution: | (1) Special Astrophysical Observatory, Russian Academy of Sciences, Russia;(2) Institute of Astronomy with NAO-Rozhen, Bulgarian Academy of Sciences, Bulgaria |
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| Abstract: | The star HD220825 is studied as part of a program to investigate the chemical abundance of CP stars with weak magnetic fields.
Its magnetic field is found to be Be < 100 G. The chemical abundance appears to correspond to that of CP stars with high magnetic
fields. The present results and other data imply that the magnetic field has little effect on the degree of anomaly in the
chemical abundance, although it undoubtedly has an effect. The rotation speed of the star is 37.5 km/s, substantially lower
than for normal stars with the same temperature. The weak magnetic field raises difficulties for the hypothesis that the loss
of angular momentum involves the magnetic field.
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Translated from Astrofizika, Vol. 49, No. 4, pp. 585–594 (November 2006). |
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| Keywords: | stars magnetic fields — individual HD220825 |
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