Hi-5: A potential high-contrast thermal near-infrared imager for the VLTI

D. Defrère, M. Ireland, O. Absil, J. P. Berger, W. C. Danchi, S. Ertel, A. Gallenne, F. Hénault, P. Hinz, E. Huby, S. Kraus, L. Labadie, J. B. Le Bouquin, G. Martin, A. Matter, B. Mennesson, A. Mérand, S. Minardi, J. D. Monnier, B. NorrisG. Orban De Xivry, E. Pedretti, J. U. Pott, M. Reggiani, E. Serabyn, J. Surdej, K. R.W. Tristram, J. Woillez

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Hi-5 is a high-contrast (or high dynamic range) infrared imager project for the VLTI. Its main goal is to characterize young extra-solar planetary systems and exozodiacal dust around southern main-sequence stars. In this paper, we present an update of the project and key technology pathways to improve the contrast achieved by the VLTI. In particular, we discuss the possibility to use integrated optics, proven in the near-infrared, in the thermal near-infrared (L and M bands, 3-5 μm) and advanced fringe tracking strategies. We also address the strong exoplanet science case (young exoplanets, planet formation, and exozodiacal disks) offered by this wavelength regime as well as other possible science cases such as stellar physics (fundamental parameters and multiplicity) and extragalactic astrophysics (active galactic nuclei and fundamental constants). Synergies and scientific preparation for other potential future instruments such as the Planet Formation Imager are also briefly discussed.

Original languageEnglish (US)
Title of host publicationOptical and Infrared Interferometry and Imaging VI
EditorsPeter G. Tuthill, Michelle J. Creech-Eakman, Antoine Merand
PublisherSPIE
ISBN (Print)9781510619555
DOIs
StatePublished - 2018
Event2018 Optical and Infrared Interferometry and Imaging VI - Austin, United States
Duration: Jun 11 2018Jun 15 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10701
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

Other2018 Optical and Infrared Interferometry and Imaging VI
CountryUnited States
CityAustin
Period6/11/186/15/18

Keywords

  • AGN
  • Exoplanet
  • Exozodiacal dust
  • Hi-5
  • Infrared interferometry
  • Integrated optics
  • PFI
  • VLTI

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Defrère, D., Ireland, M., Absil, O., Berger, J. P., Danchi, W. C., Ertel, S., Gallenne, A., Hénault, F., Hinz, P., Huby, E., Kraus, S., Labadie, L., Le Bouquin, J. B., Martin, G., Matter, A., Mennesson, B., Mérand, A., Minardi, S., Monnier, J. D., ... Woillez, J. (2018). Hi-5: A potential high-contrast thermal near-infrared imager for the VLTI. In P. G. Tuthill, M. J. Creech-Eakman, & A. Merand (Eds.), Optical and Infrared Interferometry and Imaging VI [107010U] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10701). SPIE. https://doi.org/10.1117/12.2313700