The magnetosphere of the close accreting PMS binary V4046 Sgr

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

doi:10.1051/epjconf/20136408009

The magnetosphere of the close accreting PMS binary V4046 Sgr

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

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Article number	08009
Number of pages	4
Journal	EPJ Web of Conferences
Volume	64
DOIs	https://doi.org/10.1051/epjconf/20136408009
Publication status	Published - 8 Jan 2014

Access to Document

10.1051/epjconf/20136408009

Gregory_2014_EPJWoC_TheMagnetosphere
© Owned by the authors, published by EDP Sciences, 2014. This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. http://creativecommons.org/licenses/by/2.0/
Final published version, 563 KB

Cite this

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. (2014). The magnetosphere of the close accreting PMS binary V4046 Sgr. EPJ Web of Conferences, 64, Article 08009. https://doi.org/10.1051/epjconf/20136408009

@article{ceb32c6fe5a94a289885d728ec0ece5b,

title = "The magnetosphere of the close accreting PMS binary V4046 Sgr",

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.",

author = "S.G. Gregory and V.R. Holzwarth and J.-F. Donati and G.A.J. Hussain and T. Montmerle and E. Alecian and S.H.P. Alencar and C. Argiroffi and M. Audard and J. Bouvier and F. Damiani and M. G{\"u}del and D.P. Huenemoerder and J.H. Kastner and A. Maggio and G.G. Sacco and G.A. Wade",

note = "SGG acknowledges support from the Science & Technology Facilities Council (STFC) via an Ernest Rutherford Fellowship [ST/J003255/1]. GAW is supported by a Discovery Grant from the Natural Science & Engineering Research Council of Canada (NSERC).",

year = "2014",

month = jan,

day = "8",

doi = "10.1051/epjconf/20136408009",

language = "English",

volume = "64",

journal = "EPJ Web of Conferences",

issn = "2100-014X",

publisher = "EDP Sciences",

}

Gregory, SG, Holzwarth, VR, Donati, J-F, Hussain, GAJ, Montmerle, T, Alecian, E, Alencar, SHP, Argiroffi, C, Audard, M, Bouvier, J, Damiani, F, Güdel, M, Huenemoerder, DP, Kastner, JH, Maggio, A, Sacco, GG & Wade, GA 2014, 'The magnetosphere of the close accreting PMS binary V4046 Sgr', EPJ Web of Conferences, vol. 64, 08009. https://doi.org/10.1051/epjconf/20136408009

TY - JOUR

T1 - The magnetosphere of the close accreting PMS binary V4046 Sgr

AU - Gregory, S.G.

AU - Holzwarth, V.R.

AU - Donati, J.-F.

AU - Hussain, G.A.J.

AU - Montmerle, T.

AU - Alecian, E.

AU - Alencar, S.H.P.

AU - Argiroffi, C.

AU - Audard, M.

AU - Bouvier, J.

AU - Damiani, F.

AU - Güdel, M.

AU - Huenemoerder, D.P.

AU - Kastner, J.H.

AU - Maggio, A.

AU - Sacco, G.G.

AU - Wade, G.A.

N1 - SGG acknowledges support from the Science & Technology Facilities Council (STFC) via an Ernest Rutherford Fellowship [ST/J003255/1]. GAW is supported by a Discovery Grant from the Natural Science & Engineering Research Council of Canada (NSERC).

PY - 2014/1/8

Y1 - 2014/1/8

N2 - 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.

AB - 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.

UR - http://www.epj-conferences.org/articles/epjconf/abs/2014/01/epjconf_mag2013_08009/epjconf_mag2013_08009.html

U2 - 10.1051/epjconf/20136408009

DO - 10.1051/epjconf/20136408009

M3 - Article

AN - SCOPUS:84893561829

SN - 2100-014X

VL - 64

JO - EPJ Web of Conferences

JF - EPJ Web of Conferences

M1 - 08009

ER -

The magnetosphere of the close accreting PMS binary V4046 Sgr

Abstract

Access to Document

Other files and links

Fingerprint

Magnetic Fields: the key to understandin: Magnetic fields: the key to understanding the physics of setllar evolution and exoplanetary systems

Cite this

The magnetosphere of the close accreting PMS binary V4046 Sgr

Abstract

Access to Document

Other files and links

Fingerprint

Projects

Magnetic Fields: the key to understandin: Magnetic fields: the key to understanding the physics of setllar evolution and exoplanetary systems

Cite this