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Paper: Possible Detection of a Magnetic Field in X Persei
Volume: 510, Stars: From Collapse to Collapse
Page: 229
Authors: Valyavin, G.; Ikhsanov, N. R.; Beskrovnaya, N. G.; Gadelshin, D.; Galazutdinov, G. A.; Semenko, E.; Romanyuk, I. I.; Kholtygin, A. F.; Sabin, L.; Hiriart, D.; Chountonov, G.
Abstract: We present the results of magnetometric observations of the classic high mass X-ray binary star X Persei. Analysing magnetically-induced circular polarization in the strong emission spectral features, we have detected the presence of a variable longitudinal magnetic field in this star. The field varies from -413±100 Gto +491± 130 G with the average value -161±113 G and period P ≈ 0.7 days. We interpret this period to be due to the spin rotation of the star. A combined analysis of absorption spectral lines revealed no field.
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