A triple star in disarray. Multi-epoch observations of T Tauri with VLT-SPHERE and LBT-LUCI

M. Kasper; K. K. R. Santhakumari; T. M. Herbst; R. van Boekel; F. Menard; R. Gratton; R. G. van Holstein; M. Langlois; C. Ginski; A. Boccaletti; M. Benisty; J. de Boer; P. Delorme; S. Desidera; C. Dominik; J. Hagelberg; T. Henning; J. Heidt; R. Köhler; D. Mesa; S. Messina; A. Pavlov; C. Petit; E. Rickman; A. Roux; F. Rigal; A. Vigan; Z. Wahhaj; A. Zurlo

doi:10.1051/0004-6361/202039186

A triple star in disarray. Multi-epoch observations of T Tauri with VLT-SPHERE and LBT-LUCI

M. Kasper, K. K. R. Santhakumari, T. M. Herbst, R. van Boekel, F. Menard, R. Gratton, R. G. van Holstein, M. Langlois, C. Ginski, A. Boccaletti, M. Benisty, J. de Boer, P. Delorme, S. Desidera, C. Dominik, J. Hagelberg, T. Henning, J. Heidt, R. Köhler, D. MesaS. Messina, A. Pavlov, C. Petit, E. Rickman, A. Roux, F. Rigal, A. Vigan, Z. Wahhaj, A. Zurlo

Physics

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

4 Citations (Scopus)

Abstract

Aims: T Tauri remains an enigmatic triple star for which neither the evolutionary state of the stars themselves, nor the geometry of the complex outflow system is completely understood. Eight-meter class telescopes equipped with state-of-the-art adaptive optics provide the spatial resolution necessary to trace tangential motion of features over a timescale of a few years, and they help to associate them with the different outflows.
Methods: We used J-, H-, and K-band high-contrast coronagraphic imaging with VLT-SPHERE recorded between 2016 and 2018 to map reflection nebulosities and obtain high precision near-infrared (NIR) photometry of the triple star. We also present H₂ emission maps of the ν = 1-0 S(1) line at 2.122 μm obtained with LBT-LUCI during its commissioning period at the end of 2016.
Results: The data reveal a number of new features in the system, some of which are seen in reflected light and some are seen in H₂ emission; furthermore, they can all be associated with the main outflows. The tangential motion of the features provides compelling evidence that T Tauri Sb drives the southeast-northwest outflow. T Tauri Sb has recently faded probably because of increased extinction as it passes through the southern circumbinary disk. While Sb is approaching periastron, T Tauri Sa instead has brightened and is detected in all our J-band imagery for the first time....

Original language	English
Journal	Astronomy and Astrophysics
DOIs	https://doi.org/10.1051/0004-6361/202039186
Publication status	Published - Dec 2020

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Kasper, M., Santhakumari, K. K. R., Herbst, T. M., van Boekel, R., Menard, F., Gratton, R., van Holstein, R. G., Langlois, M., Ginski, C., Boccaletti, A., Benisty, M., de Boer, J., Delorme, P., Desidera, S., Dominik, C., Hagelberg, J., Henning, T., Heidt, J., Köhler, R., ... Zurlo, A. (2020). A triple star in disarray. Multi-epoch observations of T Tauri with VLT-SPHERE and LBT-LUCI. Astronomy and Astrophysics. https://doi.org/10.1051/0004-6361/202039186

@article{bae208d9e52244469e62eb139e7cab4e,

title = "A triple star in disarray. Multi-epoch observations of T Tauri with VLT-SPHERE and LBT-LUCI",

abstract = " Aims: T Tauri remains an enigmatic triple star for which neither the evolutionary state of the stars themselves, nor the geometry of the complex outflow system is completely understood. Eight-meter class telescopes equipped with state-of-the-art adaptive optics provide the spatial resolution necessary to trace tangential motion of features over a timescale of a few years, and they help to associate them with the different outflows. Methods: We used J-, H-, and K-band high-contrast coronagraphic imaging with VLT-SPHERE recorded between 2016 and 2018 to map reflection nebulosities and obtain high precision near-infrared (NIR) photometry of the triple star. We also present H2 emission maps of the ν = 1-0 S(1) line at 2.122 μm obtained with LBT-LUCI during its commissioning period at the end of 2016. Results: The data reveal a number of new features in the system, some of which are seen in reflected light and some are seen in H2 emission; furthermore, they can all be associated with the main outflows. The tangential motion of the features provides compelling evidence that T Tauri Sb drives the southeast-northwest outflow. T Tauri Sb has recently faded probably because of increased extinction as it passes through the southern circumbinary disk. While Sb is approaching periastron, T Tauri Sa instead has brightened and is detected in all our J-band imagery for the first time....",

author = "M. Kasper and Santhakumari, \{K. K. R.\} and Herbst, \{T. M.\} and \{van Boekel\}, R. and F. Menard and R. Gratton and \{van Holstein\}, \{R. G.\} and M. Langlois and C. Ginski and A. Boccaletti and M. Benisty and \{de Boer\}, J. and P. Delorme and S. Desidera and C. Dominik and J. Hagelberg and T. Henning and J. Heidt and R. K{\"o}hler and D. Mesa and S. Messina and A. Pavlov and C. Petit and E. Rickman and A. Roux and F. Rigal and A. Vigan and Z. Wahhaj and A. Zurlo",

year = "2020",

month = dec,

doi = "10.1051/0004-6361/202039186",

language = "English",

journal = "Astronomy and Astrophysics",

}

Kasper, M, Santhakumari, KKR, Herbst, TM, van Boekel, R, Menard, F, Gratton, R, van Holstein, RG, Langlois, M, Ginski, C, Boccaletti, A, Benisty, M, de Boer, J, Delorme, P, Desidera, S, Dominik, C, Hagelberg, J, Henning, T, Heidt, J, Köhler, R, Mesa, D, Messina, S, Pavlov, A, Petit, C, Rickman, E, Roux, A, Rigal, F, Vigan, A, Wahhaj, Z & Zurlo, A 2020, 'A triple star in disarray. Multi-epoch observations of T Tauri with VLT-SPHERE and LBT-LUCI', Astronomy and Astrophysics. https://doi.org/10.1051/0004-6361/202039186

TY - JOUR

T1 - A triple star in disarray. Multi-epoch observations of T Tauri with VLT-SPHERE and LBT-LUCI

AU - Kasper, M.

AU - Santhakumari, K. K. R.

AU - Herbst, T. M.

AU - van Boekel, R.

AU - Menard, F.

AU - Gratton, R.

AU - van Holstein, R. G.

AU - Langlois, M.

AU - Ginski, C.

AU - Boccaletti, A.

AU - Benisty, M.

AU - de Boer, J.

AU - Delorme, P.

AU - Desidera, S.

AU - Dominik, C.

AU - Hagelberg, J.

AU - Henning, T.

AU - Heidt, J.

AU - Köhler, R.

AU - Mesa, D.

AU - Messina, S.

AU - Pavlov, A.

AU - Petit, C.

AU - Rickman, E.

AU - Roux, A.

AU - Rigal, F.

AU - Vigan, A.

AU - Wahhaj, Z.

AU - Zurlo, A.

PY - 2020/12

Y1 - 2020/12

N2 - Aims: T Tauri remains an enigmatic triple star for which neither the evolutionary state of the stars themselves, nor the geometry of the complex outflow system is completely understood. Eight-meter class telescopes equipped with state-of-the-art adaptive optics provide the spatial resolution necessary to trace tangential motion of features over a timescale of a few years, and they help to associate them with the different outflows. Methods: We used J-, H-, and K-band high-contrast coronagraphic imaging with VLT-SPHERE recorded between 2016 and 2018 to map reflection nebulosities and obtain high precision near-infrared (NIR) photometry of the triple star. We also present H2 emission maps of the ν = 1-0 S(1) line at 2.122 μm obtained with LBT-LUCI during its commissioning period at the end of 2016. Results: The data reveal a number of new features in the system, some of which are seen in reflected light and some are seen in H2 emission; furthermore, they can all be associated with the main outflows. The tangential motion of the features provides compelling evidence that T Tauri Sb drives the southeast-northwest outflow. T Tauri Sb has recently faded probably because of increased extinction as it passes through the southern circumbinary disk. While Sb is approaching periastron, T Tauri Sa instead has brightened and is detected in all our J-band imagery for the first time....

AB - Aims: T Tauri remains an enigmatic triple star for which neither the evolutionary state of the stars themselves, nor the geometry of the complex outflow system is completely understood. Eight-meter class telescopes equipped with state-of-the-art adaptive optics provide the spatial resolution necessary to trace tangential motion of features over a timescale of a few years, and they help to associate them with the different outflows. Methods: We used J-, H-, and K-band high-contrast coronagraphic imaging with VLT-SPHERE recorded between 2016 and 2018 to map reflection nebulosities and obtain high precision near-infrared (NIR) photometry of the triple star. We also present H2 emission maps of the ν = 1-0 S(1) line at 2.122 μm obtained with LBT-LUCI during its commissioning period at the end of 2016. Results: The data reveal a number of new features in the system, some of which are seen in reflected light and some are seen in H2 emission; furthermore, they can all be associated with the main outflows. The tangential motion of the features provides compelling evidence that T Tauri Sb drives the southeast-northwest outflow. T Tauri Sb has recently faded probably because of increased extinction as it passes through the southern circumbinary disk. While Sb is approaching periastron, T Tauri Sa instead has brightened and is detected in all our J-band imagery for the first time....

U2 - 10.1051/0004-6361/202039186

DO - 10.1051/0004-6361/202039186

M3 - Article

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

ER -

A triple star in disarray. Multi-epoch observations of T Tauri with VLT-SPHERE and LBT-LUCI

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