Search results for "Zeeman–Doppler imaging"

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The large-scale magnetic field of the eccentric pre-main-sequence binary system V1878 Ori

2020

We report time-resolved, high-resolution optical spectropolarimetric observations of the young double-lined spectroscopic binary V1878 Ori. Our observations were collected with the ESPaDOnS spectropolarimeter at the Canada-France-Hawaii Telescope through the BinaMIcS large programme. V1878 Ori A and B are partially convective intermediate mass weak-line T Tauri stars on an eccentric and asynchronous orbit. We also acquired X-ray observations at periastron and outside periastron. Using the least-squares deconvolution technique (LSD) to combine information from many spectral lines, we clearly detected circular polarization signals in both components throughout the orbit. We refined the orbita…

BrightnessFOS: Physical sciencesAstrophysicsspectroscopic [binaries]01 natural sciencesSpectral lineSettore FIS/05 - Astronomia E AstrofisicaAstronomi astrofysik och kosmologi0103 physical sciencespolarimetric [techniques]Astronomy Astrophysics and CosmologyAstrophysics::Solar and Stellar Astrophysics010303 astronomy & astrophysicsSolar and Stellar Astrophysics (astro-ph.SR)Circular polarizationPhysics010308 nuclear & particles physics[SDU.ASTR.SR]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR]stars: magnetic fieldAstronomy and AstrophysicsZeeman–Doppler imagingMagnetic fieldtechniques: polarimetricT Tauri starStarsOrbitindividual: V1878 Ori [stars]Astrophysics - Solar and Stellar AstrophysicsSpace and Planetary Sciencemagnetic field [stars]spectroscopic [techniques]Astrophysics::Earth and Planetary Astrophysicsbinaries: spectroscopicstars: individual: V1878 Oritechniques: spectroscopic
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