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- ItemMagnetic fields of Herbig Ae/Be stars(Les Ulis : EDP Sciences, 2014) Hubrig, S.; Ilyin, I.; Schöller, M.; Cowley, C.R.; Castelli, F.; Stelzer, B.; Gonzalez, J.-F.; Wolff, B.We report on the status of our spectropolarimetric studies of Herbig Ae/Be stars carried out during the last years. The magnetic field geometries of these stars, investigated with spectropolarimetric time series, can likely be described by centred dipoles with polar magnetic field strengths of several hundred Gauss. A number of Herbig Ae/Be stars with detected magnetic fields have recently been observed with X-shooter in the visible and the near-IR, as well as with the high-resolution near-IR spectrograph CRIRES. These observations are of great importance to understand the relation between the magnetic field topology and the physics of the accretion flow and the accretion disk gas emission.
- ItemThe Herbig Ae SB2 system HD 104237(Les Ulis : EDP Sciences, 2014) Cowley, C.R.; Castelli, J.; Hubrig, S.We present here the most recent abundance analysis of this Herbig Ae system based on high-resolution UVES and HARPS spectra and the results of our magnetic field measurements using high-resolution spectra obtained with HARPSpol.
- ItemThe enigmatic highly peculiar binary system HD 66051(Tatranská Lomnica : Astronomický Ústav SAV, 2020) Paunzen, E.; Niemczura, E.; Kolaczek-Szymanski, P.A.; Hubrig, S.HD 66051 (V414 Pup) is an eclipsing and spectroscopic double-lined binary, hosting two chemically peculiar stars: a highly peculiar B star as pri-mary and an Am star as secondary. It also shows out-of-eclipse variability that is due to chemical spots. Using a set of high-resolution spectropolarimetric observations, a weak magnetic field on the primary was found. The investigation of the new high-resolution UVES spectrum of HD 66051 allowed us to decide on the chemical peculiarity type of both components with more reliability. © 2020 Astronomical Institute, Slovak Academy of Sciences.