The Messenger Astronomical Science

A Planet with a Disc? A Surprising Detection in Polarised Light with VLT/SPHERE

Authors
  • Ginski, Christian [Anton Pannekoek Institute for Astronomy, University of Amsterdam, the Netherlands; Sterrewacht Leiden, the Netherlands]
  • van Holstein, Rob [Sterrewacht Leiden, the Netherlands]
  • Juhász, Attila [Institute of Astronomy, University of Cambridge, UK]
  • Benisty, Myriam [Université de Grenoble Alpes, CNRS, IPAG, France; Unidad Mixta Internacional Franco-Chilena de Astronomía, CNRS/INSU UMI 3386 and Departamento de Astronomía, Santiago, Chile]
  • Schmidt, Tobias [LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Université Paris 06, Université Paris Diderot, Sorbonne Paris Cité, France]
  • Chauvin, Gaël [Université de Grenoble Alpes, CNRS, IPAG, France; Unidad Mixta Internacional Franco-Chilena de Astronomía, CNRS/INSU UMI 3386 and Departamento de Astronomía, Santiago, Chile]
  • de Boer, Jos [Sterrewacht Leiden, the Netherlands]
  • Wilby, Mike [Sterrewacht Leiden, the Netherlands]
  • Manara, Carlo F. [European Southern Observatory (ESO)]
  • Delorme, Philippe [Université de Grenoble Alpes, CNRS, IPAG, France]
  • Ménard, Francois [Université de Grenoble Alpes, CNRS, IPAG, France]
  • Muro-Arena, Gabriela [Anton Pannekoek Institute for Astronomy, University of Amsterdam, the Netherlands]
  • Pinilla, Paola [Department of Astronomy, Steward Observatory, The University of Arizona, Tucson, USA]
  • Birnstiel, Til [University Observatory Munich, Faculty of Physics, Ludwig-Maximilians- University, Munich, Germany]
  • Flock, Mario [Max-Planck-Institut für Astronomie, Heidelberg, Germany]
  • Keller, Christoph [Sterrewacht Leiden, the Netherlands]
  • Kenworthy, Matthew [Sterrewacht Leiden, the Netherlands]
  • Milli, Julien [European Southern Observatory (ESO)]
  • Olofsson, Johan [Instituto de Física y Astronomía, Universidad de Valparaíso, Chile; Núcleo Milenio Formación Planetaria – NPF, Universidad de Valparaíso, Chile]
  • Pérez, Laura [Departamento de Astronomía, Universidad de Chile, Santiago, Chile]
  • Snik, Frans [Sterrewacht Leiden, the Netherlands]
  • Vogt, Nikolaus [Instituto de Física y Astronomía, Universidad de Valparaíso, Chile]

Section
Astronomical Science
Abstract

With the Spectro-Polarimetric High- contrast Exoplanet REsearch (SPHERE) instrument at ESO’s Very Large Telescope (VLT) we can study the linear polarisation of directly detected planets and brown dwarfs, to learn about their atmospheres and immediate environments. We summarise here the recent discovery of a low-mass companion in polarised light by Ginski et al. (2018). The object shows an extreme degree of polarisation, indicating the presence of a circumplanetary disc.


Dates
Created: 2018-06-01/2018-06-30
Length
5 pages

Cite this article:

C. Ginski, R. van Holstein, A. Juhász, M. Benisty, T. Schmidt, G. Chauvin, J. de Boer, M. Wilby, C. Manara, P. Delorme, F. Ménard, G. Muro-Arena, P. Pinilla, T. Birnstiel, M. Flock, C. Keller, M. Kenworthy, J. Milli, J. Olofsson, L. Pérez, F. Snik, N. Vogt; A Planet with a Disc? A Surprising Detection in Polarised Light with VLT/SPHERE. The Messenger 172 (June 2018): 27–31. https://doi.org/10.18727/0722-6691/5078