The magnetic variability of the $��$~Cep star $��^{1}$\,CMa
| Autor: | J��rvinen, S. P., Hubrig, S., Sch��ller, M., Ilyin, I. |
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| Rok vydání: | 2018 |
| Předmět: | |
| DOI: | 10.48550/arxiv.1801.07017 |
| Popis: | $��^{1}$ CMa is a known magnetic star showing rotationally modulated magnetic variability with a period of 2.17937 d. However, recent work based on high-resolution spectropolarimetry suggests that the rotation period is longer than 30 years. We compare our new spectropolarimetric measurements with FORS 2 at the VLT acquired on three consecutive nights in 2017 to previous FORS 1/2 measurements of the longitudinal magnetic field strength. The new longitudinal magnetic field values are in the range from 115 to 240 G and do not support the presence of a long period. 5 pages, 4 figures, 1 table |
| Databáze: | OpenAIRE |
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