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Your search keyword '"Holzwarth, V. R."' showing total 2 results
Start Over Author "Holzwarth, V. R." Topic astrophysics::galaxy astrophysics
2 results on '"Holzwarth, V. R."'

1. The magnetosphere of the close accreting PMS binary V4046 Sgr AB

Author

Gregory, S. G., Holzwarth, V. R., Donati, J.-F, Hussain, G. A. J., Montmerle, T., Alecian, E., Alencar, S. H. P., Argiroffi, C., Audard, M., Bouvier, J., Damiani, F., Güdel, M., Huenemoerder, D. P., Kastner, J. H., Maggio, A., Sacco, G. G., Wade, G. A., Gregory, S G, Holzwarth, V R, Donati, J-F, Hussain, G A J, Montmerle, T, Alecian, E, Alencar, S H P, Argiroffi, C, Audard, M, Bouvier, J, Damiani, F, Güdel, M, Huenemoerder, D P, Kastner, J H, Maggio, A, Sacco, G G, and Wade, G A

Subjects
Settore FIS/05 - Astronomia E Astrofisica, Astrophysics - Solar and Stellar Astrophysics, Space and Planetary Science, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics::Solar and Stellar Astrophysics, Astronomy and Astrophysics, Solar and Stellar Astrophysics (astro-ph.SR), Astrophysics::Galaxy Astrophysics, accretion, young stars, magnetosphere
Abstract

We present a preliminary 3D potential field extrapolation model of the joint magnetosphere of the close accreting PMS binary V4046 Sgr. The model is derived from magnetic maps obtained as part of a coordinated optical and X-ray observing program., Comment: 2 pages, proceedings of IAUS 302 "Magnetic Fields throughout Stellar Evolution", Biarritz, France, August 2013. CUP, in press

Published
2013
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2. The magnetosphere of the close accreting PMS binary V4046 Sgr

Author

G. A. J. Hussain, Manuel Güdel, Joel H. Kastner, Antonio Maggio, Evelyne Alecian, Jean-François Donati, Gregg A. Wade, Thierry Montmerle, G. G. Sacco, Costanza Argiroffi, Scott G. Gregory, F. Damiani, David P. Huenemoerder, Volkmar Holzwarth, Jerome Bouvier, Marc Audard, Silvia H. P. Alencar, Gregory, S G, Holzwarth, V R, Donati, J-F, Hussain, G A J, Montmerle T, Alecian, E, Alencar, S H P, Argiroffi, C, Audard, M, Bouvier, J, Damiani, F, Güdel, M, Huenemoerder, D P, Kastner, J H, Maggio, A, Sacco, G G, Wade, G A, Science & Technology Facilities Council, University of St Andrews. University of St Andrews, and University of St Andrews. School of Physics and Astronomy

Subjects
accretion, young stars, QC1-999, Astrophysics::High Energy Astrophysical Phenomena, Magnetosphere, Binary number, FOS: Physical sciences, Astrophysics, 01 natural sciences, law.invention, Telescope, Settore FIS/05 - Astronomia E Astrofisica, law, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, 010303 astronomy & astrophysics, QC, Astrophysics::Galaxy Astrophysics, Solar and Stellar Astrophysics (astro-ph.SR), Physics, 010308 nuclear & particles physics, Magnetic field, Dipole, Stars, T Tauri star, QC Physics, Astrophysics - Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics, Circumbinary planet
Abstract

V4046 Sagittarii AB is a close short-period classical T Tauri binary. It is a circularised and synchronised system accreting from a circumbinary disk. In 2009 it was observed as part of a coordinated program involving near-simultaneous spectropolarimetric observations with ESPaDOnS at the Canada-France-Hawai'i Telescope and high-resolution X-ray observations with XMM-Newton. Magnetic maps of each star were derived from Zeeman-Doppler imaging. After briefly highlighting the most significant observational findings, we present a preliminary 3D model of the binary magnetosphere constructed from the magnetic maps using a newly developed binary magnetic field extrapolation code. The large-scale fields (the dipole components) of both stars are highly tilted with respect to their rotation axes, and their magnetic fields are linked., Comment: Proceedings of the "Physics at the Magnetospheric Boundary" conference, Geneva, June 2013

Published
2013
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