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Investigation of the inner structures around HD 169142 with VLT/SPHERE
- Ligi, R. (author)
- Vigan, A. (author)
- Gratton, R. (author)
- show more...
- de Boer, J. (author)
- Benisty, M. (author)
- Boccaletti, A. (author)
- Quanz, S. P. (author)
- Meyer, M. (author)
- Ginski, C. (author)
- Sissa, E. (author)
- Gry, C. (author)
- Henning, T. (author)
- Beuzit, J. -L. (author)
- Biller, B. (author)
- Bonnefoy, M. (author)
- Chauvin, G. (author)
- Cheetham, A. C. (author)
- Cudel, M. (author)
- Delorme, P. (author)
- Desidera, S. (author)
- Feldt, M. (author)
- Galicher, R. (author)
- Girard, J. (author)
- Kasper, M. (author)
- Kopytova, T. (author)
- Lagrange, A. -M. (author)
- Langlois, M. (author)
- Lecoroller, H. (author)
- Maire, A. -L. (author)
- Menard, F. (author)
- Mesa, D. (author)
- Peretti, S. (author)
- Perrot, C. (author)
- Pinilla, P. (author)
- Pohl, A. (author)
- Rouan, D. (author)
- Stolker, T. (author)
- Samland, M. (author)
- Wahhaj, Z. (author)
- Wildi, F. (author)
- Zurlo, A. (author)
- Buey, T. (author)
- Fantinel, D. (author)
- Fusco, T. (author)
- Jaquet, M. (author)
- Moulin, T. (author)
- Ramos, J. (author)
- Suarez, M. (author)
- Weber, L. (author)
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- (creator_code:org_t)
- 2017-11-02
- 2018
- English.
- In: Monthly notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 473:2, s. 1774-1783
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- 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 similar to 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 K-S 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 similar to 93 mas separation and position angle of 355 degrees, 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 similar to 100 mas. Follow-up observations are necessary to confirm the detection and the nature of this source and structure.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- Stars: individual: HD169142
- Planets and satellites: detection
- formation
- Techniques: high angular resolution
- Protoplanetary disc
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
- Ligi, R.
- Vigan, A.
- Gratton, R.
- de Boer, J.
- Benisty, M.
- Boccaletti, A.
- show more...
- Quanz, S. P.
- Meyer, M.
- Ginski, C.
- Sissa, E.
- Gry, C.
- Henning, T.
- Beuzit, J. -L.
- Biller, B.
- Bonnefoy, M.
- Chauvin, G.
- Cheetham, A. C.
- Cudel, M.
- Delorme, P.
- Desidera, S.
- Feldt, M.
- Galicher, R.
- Girard, J.
- Janson, Markus
- Kasper, M.
- Kopytova, T.
- Lagrange, A. -M.
- Langlois, M.
- Lecoroller, H.
- Maire, A. -L.
- Menard, F.
- Mesa, D.
- Peretti, S.
- Perrot, C.
- Pinilla, P.
- Pohl, A.
- Rouan, D.
- Stolker, T.
- Samland, M.
- Wahhaj, Z.
- Wildi, F.
- Zurlo, A.
- Buey, T.
- Fantinel, D.
- Fusco, T.
- Jaquet, M.
- Moulin, T.
- Ramos, J.
- Suarez, M.
- Weber, L.
- show less...
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- NATURAL SCIENCES
- NATURAL SCIENCES
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- Stockholm University
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