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SPHERE dynamical and spectroscopic characterization of HD 142527B

MPS-Authors

Claudi,  R.
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;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

D'Orazi,  V.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

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

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

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

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

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

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

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

Keppler,  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;

Lacour,  S.
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;

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

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

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

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

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

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

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

Pavlov,  A.
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;

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

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

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

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

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

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

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

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

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

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

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

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

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

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Citation

Claudi, R., Maire, A.-.-L., Mesa, D., Cheetham, A., Fontanive, C., Gratton, R., et al. (2019). SPHERE dynamical and spectroscopic characterization of HD 142527B. Astronomy and Astrophysics, 622.


Cite as: https://hdl.handle.net/21.11116/0000-0005-D3D3-E
Abstract

Aims: HD 142527 is one of the most frequently studied Herbig Ae/Be stars with a transitional disk that hosts a large cavity that is up to about 100 au in radius. For this reason, it has been included in the guaranteed time observation (GTO) SpHere INfrared survey for Exoplanets (SHINE) as part of the Spectro-Polarimetric High-contrast Exoplanet REsearch (SPHERE) at the Very Large Telescope (VLT) in order to search for low-mass companions that might explain the presence of the gap. SHINE is a large survey within about 600 young nearby stars are observed with SPHERE with the aim to constrain the occurrence and orbital properties of the giant planet population at large (> 5 au) orbital separation around young stars.
Methods: We used the IRDIFS observing mode of SPHERE (IRDIS short for infrared dual imaging and spectrograph plus IFS or integral field spectrograph) without any coronagraph in order to search for and characterize companions as close as 30 mas of the star. Furthermore, we present the first observations that ever used the sparse aperture mask (SAM) for SPHERE both in IRDIFS and IRDIFS_EXT modes. All the data were reduced using the dedicated SPHERE pipeline and dedicated algorithms that make use of the principal component analysis (PCA) and reference differential imaging (RDI) techniques.
Results: We detect the accreting low-mass companion