Poster Open Access
A very misinclined magnetic field: The case of the T Tauri star DK Tau
Nelissen, M.; McGinnis, P.; Rangaswamy, D.; Folsom, C.; Ray, T.
Editor(s)
Wolk, ScottWe analyzed nine circularly polarized spectra of DK Tau (a classical T Tauri star), spanning over one rotation cycle and collected in 2010 with the spectropolarimeter ESPaDOnS (at the CFHT). We present a preliminary study of DK Tau's large-scale magnetic field configuration and the distribution of relative brightness across its surface, as well as the variability of its veiling (a signature of accretion). We find that the magnetic dipole is nearly perpendicular to the stellar rotation axis. We also find an anti-correlation of the veiling and the average magnetic field in the line-of-sight, Blos, showing the connection between the accretion and the magnetic field.
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Folsom, C. P. et al. (2018). The evolution of surface magnetic fields in young solar-type stars II: the early main sequence (250-650 Myr).
Manara, C. F. et al. (2019). Observational constraints on dust disk sizes in tidally truncated protoplanetary disks in multiple systems in the Taurus region.
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- Publication date:
- February 26, 2021
- DOI:
-
- Keyword(s):
- Young stars stars: variables: T Tauri stars: individual: DK Tau techniques: spectropolarimetry stars: magnetic field accretion
- Grants:
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European Commission:
- EASY - Ejection Accretion Structures in YSOs (EASY) (743029)
- Meeting:
- The 20.5th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (CS20.5), virtually anywhere, March 2-4, 2021
- Communities:
- License (for files):
- Creative Commons Attribution 4.0 International