Recent studies of magnetic fields in Herbig Ae/Be stars
| Autor: | Beate Stelzer, R. V. Yudin, Zdeněk Mikulášek, Swetlana Hubrig, Burkhard Wolff, Ilya Ilyin, M. A. Pogodin, Markus Schöller, Charles R. Cowley |
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| Rok vydání: | 2011 |
| Předmět: |
Physics
010308 nuclear & particles physics K-type main-sequence star Astronomy Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Herbig Ae/Be star 01 natural sciences Accretion (astrophysics) Magnetic field Dipole Stars T Tauri star Space and Planetary Science 0103 physical sciences Astrophysics::Solar and Stellar Astrophysics Polar Astrophysics::Earth and Planetary Astrophysics 010303 astronomy & astrophysics Astrophysics::Galaxy Astrophysics |
| Zdroj: | Astronomische Nachrichten. 332:1022-1026 |
| ISSN: | 0004-6337 |
| Popis: | New determinations of the mean longitudinal magnetic field for several Herbig Ae/Be stars are presented. The longitudinal magnetic field measurements of MWC 480 reveal the presence of a strong kG field, which was undetected in our previous low-resolution polarimetric observations with FORS 1. The magnetic field geometries of Herbig Ae/Be stars studied 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 were recently observed with X-shooter in the visible and 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 accretion flow and accretion disk gas emission. |
| Databáze: | OpenAIRE |
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