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Investigation of the inner structures around HD 169142 with VLT/SPHERE

MPS-Authors

Ligi,  R.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Vigan,  A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Gratton,  R.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

de Boer,  J.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Benisty,  M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Boccaletti,  A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Quanz,  S. P.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Meyer,  M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Ginski,  C.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Sissa,  E.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Gry,  C.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Henning,  T.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Beuzit,  J. -L.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Biller,  B.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Bonnefoy,  M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Chauvin,  G.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Cheetham,  A. C.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Cudel,  M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Delorme,  P.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Desidera,  S.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Feldt,  M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Galicher,  R.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Girard,  J.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Janson,  M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Kasper,  M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Kopytova,  T.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Lagrange,  A. -M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Langlois,  M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Lecoroller,  H.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Maire,  A. -L.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Ménard,  F.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Mesa,  D.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Peretti,  S.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Perrot,  C.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Pinilla,  P.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Pohl,  A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Rouan,  D.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Stolker,  T.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Samland,  M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Wahhaj,  Z.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Wildi,  F.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Zurlo,  A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Buey,  T.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Fantinel,  D.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Fusco,  T.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Jaquet,  M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Moulin,  T.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Ramos,  J.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Suarez,  M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Weber,  L.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

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Citation

Ligi, R., Vigan, A., Gratton, R., de Boer, J., Benisty, M., Boccaletti, A., et al. (2018). Investigation of the inner structures around HD 169142 with VLT/SPHERE. Monthly Notices of the Royal Astronomical Society, 473, 1774-1783.


Cite as: https://hdl.handle.net/21.11116/0000-0005-CC88-C
Abstract
We present observations of the Herbig Ae star HD 169142 with the VLT/SPHERE instruments InfraRed Dual-band Imager and Spectrograph (IRDIS) (K1K2 and H2H3 bands) and the Integral Field Spectrograph (IFS) (Y, J and H bands). We detect several bright blobs at ̃180 mas separation from the star, and a faint arc-like structure in the IFS data. Our reference differential imaging (RDI) data analysis also finds a bright ring at the same separation. We show, using a simulation based on polarized light data, that these blobs are actually part of the ring at 180 mas. These results demonstrate that the earlier detections of blobs in the H and KS bands at these separations in Biller et al. as potential planet/substellar companions are actually tracing a bright ring with a Keplerian motion. Moreover, we detect in the images an additional bright structure at ̃93 mas separation and position angle of 355°, at a location very close to previous detections. It appears point-like in the YJ and K bands but is more extended in the H band. We also marginally detect an inner ring in the RDI data at ̃100 mas. Follow-up observations are necessary to confirm the detection and the nature of this source and structure.