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General properties of magnetic CP stars

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Abstract

We present the review of our previous studies related to observational evidence of the fossil field hypothesis of formation and evolution of magnetic and non-magnetic chemically peculiar stars. Analysis of the observed data shows that these stars acquire their main properties in the process of gravitational collapse. In the non-stationary Hayashi phase, a magnetic field becomes weakened and its configuration complicated, but the fossil field global orientation remains. After a non-stationary phase, relaxation of young star’s tangled field takes place and by the time of joining ZAMS (Zero Age Main Sequence) it is generally restored to a dipole structure. Stability of dipole structures allows them to remain unchanged up to the end of their life on the Main Sequence which is 109 years at most.

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Correspondence to Yu. V. Glagolevskij.

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Original Russian Text © Yu.V. Glagolevskij, 2017, published in Astrofizicheskii Byulleten’, 2017, Vol. 72, No. 3, pp. 334–350.

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Glagolevskij, Y.V. General properties of magnetic CP stars. Astrophys. Bull. 72, 305–320 (2017). https://doi.org/10.1134/S1990341317030191

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