Recent studies of magnetic fields in Herbig Ae/Be stars

Details Recent studies of magnetic fields in Herbig Ae/Be stars Recent studies of magnetic fields in Herbig Ae/Be stars

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011an....332.1022h&link_type=abstract

Astronomische Nachrichten, Vol.332, Issue 9/10, p.1022

Physics

Stars: Atmospheres, Stars: Individual (Hd 97048, Hd 101412, Hd 150193, Hd 176386, Mwc 480), Stars: Magnetic Field, Stars: Pre-Main Sequence, Stars: Variables: General

Scientific paper

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.
Based on observations obtained at the European Southern Observatory, Paranal, Chile (ESO programmes 085.C-0137(A), 085.C-0137(A), 087.C-0124(A)) and SOFIN observations at the 2.56-m Nordic Optical Telescope on La Palma.}

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