Polarisation and magnetic fields in Ap stars : J/MNRAS/426/1003

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Authors : Silvester J. orcid , Wade G.A., Kochukhov O. (hide) , Wade G.A., Kochukhov O. et..al

VizieR DOI : 10.26093/cds/vizier.74261003
Bibcode : 2012MNRAS.426.1003S (ADS) (Simbad) (Objects)
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CDS Keywords : Stars, Ap; Magnetic fields; Polarization
UAT : Ap stars, Magnetic fields, Polarimetry

Observation (OC)

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Inserted into VizieR : 02-Aug-2013
Last modification : 18-Jul-2024

Stokes IQUV magnetic Doppler imaging of Ap stars. I. ESPaDOnS and NARVAL observations. (2012)

Keywords : stars chemically peculiar - stars: magnetic field

Abstract:In this paper we describe and evaluate new spectral line polarization observations obtained with the goal of mapping the surfaces of magnetic Ap stars in great detail. One hundred complete or partial Stokes IQUV sequences, corresponding to 297 individual polarized spectra, have been obtained for seven bright Ap stars using the Echelle SpectroPolarimetric Device for the Observation of Stars (ESPaDOnS) and NARVAL high-resolution spectropolarimeters. The targets span a range of masses from approximately 1.8 to 3.4M_{sun}_, a range of rotation periods from 2.56 to 6.80d and a range of maximum longitudinal magnetic field strengths from 0.3 to over 4kG. For three of the seven stars, we have obtained dense phase coverage sampling the ...(more)
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In total 48 sequences were obtained with ESPaDOnS and 52 with NARVAL.

  • III/260 : General Catalogue of Ap and Am stars (Renson+ 2009)

                


                

                    

                


                

                    

                


                

                    
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