The system of HD169142 seen by SPHERE/VLT

R. Ligi; A. Vigan; R. Gratton; J. de Boer; M. Benisty; A. Boccaletti; S. P. Quanz; M. Meyer; C. Ginski; E. Sissa; C. Gry; T. Henning

The system of HD169142 seen by SPHERE/VLT

R. Ligi, A. Vigan, R. Gratton, J. de Boer, M. Benisty, A. Boccaletti, S. P. Quanz, M. Meyer, C. Ginski, E. Sissa, C. Gry, T. Henning

Physics

Research output: Chapter in Book or Conference Publication/Proceeding › Conference Publication

Abstract

Young stellar objects are perfect targets to unveil the mechanisms of planetary formation. We present new observations of HD169142, a young Herbig Ae star surrounded by a succession of rings. Interestingly, several previous direct imaging observations showed two point-like structures that were interpreted as substellar companions, one of 28 to 80 M_{Jup} at a separation of 110-156 mas, and the other of 8-15 M_{Jup} at 180 mas from the star. We used the high-contrast capabilities of SPHERE/VLT to investigate the nature of these detected companions. Our new observations reveal a bright ring at 180-200 mas, that is confirmed by polarised images. We also show that the companion detected at 180 mas is actually a part of this ring and follows the disk in a Keplerian movement. Finally, we marginally detect a structure at 93 mas from the star that could also correspond to an undiscovered ring in the innermost part of the system....

Original language	English
Title of host publication	SF2A-2017: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics
Publication status	Published - Dec 2017

Cite this

@inproceedings{bad6991c4a4145aa9ccb52fca6e5f979,

title = "The system of HD169142 seen by SPHERE/VLT",

abstract = "Young stellar objects are perfect targets to unveil the mechanisms of planetary formation. We present new observations of HD169142, a young Herbig Ae star surrounded by a succession of rings. Interestingly, several previous direct imaging observations showed two point-like structures that were interpreted as substellar companions, one of 28 to 80 M_{Jup} at a separation of 110-156 mas, and the other of 8-15 M_{Jup} at 180 mas from the star. We used the high-contrast capabilities of SPHERE/VLT to investigate the nature of these detected companions. Our new observations reveal a bright ring at 180-200 mas, that is confirmed by polarised images. We also show that the companion detected at 180 mas is actually a part of this ring and follows the disk in a Keplerian movement. Finally, we marginally detect a structure at 93 mas from the star that could also correspond to an undiscovered ring in the innermost part of the system....",

author = "R. Ligi and A. Vigan and R. Gratton and {de Boer}, J. and M. Benisty and A. Boccaletti and Quanz, {S. P.} and M. Meyer and C. Ginski and E. Sissa and C. Gry and T. Henning",

year = "2017",

month = dec,

language = "English",

booktitle = "SF2A-2017: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics",

}

TY - GEN

T1 - The system of HD169142 seen by SPHERE/VLT

AU - Ligi, R.

AU - Vigan, A.

AU - Gratton, R.

AU - de Boer, J.

AU - Benisty, M.

AU - Boccaletti, A.

AU - Quanz, S. P.

AU - Meyer, M.

AU - Ginski, C.

AU - Sissa, E.

AU - Gry, C.

AU - Henning, T.

PY - 2017/12

Y1 - 2017/12

N2 - Young stellar objects are perfect targets to unveil the mechanisms of planetary formation. We present new observations of HD169142, a young Herbig Ae star surrounded by a succession of rings. Interestingly, several previous direct imaging observations showed two point-like structures that were interpreted as substellar companions, one of 28 to 80 M_{Jup} at a separation of 110-156 mas, and the other of 8-15 M_{Jup} at 180 mas from the star. We used the high-contrast capabilities of SPHERE/VLT to investigate the nature of these detected companions. Our new observations reveal a bright ring at 180-200 mas, that is confirmed by polarised images. We also show that the companion detected at 180 mas is actually a part of this ring and follows the disk in a Keplerian movement. Finally, we marginally detect a structure at 93 mas from the star that could also correspond to an undiscovered ring in the innermost part of the system....

AB - Young stellar objects are perfect targets to unveil the mechanisms of planetary formation. We present new observations of HD169142, a young Herbig Ae star surrounded by a succession of rings. Interestingly, several previous direct imaging observations showed two point-like structures that were interpreted as substellar companions, one of 28 to 80 M_{Jup} at a separation of 110-156 mas, and the other of 8-15 M_{Jup} at 180 mas from the star. We used the high-contrast capabilities of SPHERE/VLT to investigate the nature of these detected companions. Our new observations reveal a bright ring at 180-200 mas, that is confirmed by polarised images. We also show that the companion detected at 180 mas is actually a part of this ring and follows the disk in a Keplerian movement. Finally, we marginally detect a structure at 93 mas from the star that could also correspond to an undiscovered ring in the innermost part of the system....

M3 - Conference Publication

BT - SF2A-2017: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics

ER -

The system of HD169142 seen by SPHERE/VLT

Abstract

Fingerprint

Cite this