The Precision Integrated-Optics Near-infrared Imaging ExpeRiment (PIONIER) is a visiting instrument at the

ESO The European Organisation for Astronomical Research in the Southern Hemisphere, commonly referred to as the European Southern Observatory (ESO), is an intergovernmental research organisation made up of 16 member states for ground-based ast ...

Paranal Observatory Paranal Observatory is an astronomical observatory operated by the European Southern Observatory (ESO). It is located in the Atacama Desert of northern Chile on Cerro Paranal at altitude, south of Antofagasta. By total light-collecting area, it ...

, part of the

VLTI The Very Large Telescope (VLT) is a telescope facility operated by the European Southern Observatory on Cerro Paranal in the Atacama Desert of northern Chile. It consists of four individual telescopes, each with a primary mirror 8.2 m across, ...

astronomical observatory. It combines the light from four telescopes simultaneously and provide 0.001 arc seconds of

angular resolution Angular resolution describes the ability of any image-forming device such as an Optical telescope, optical or radio telescope, a microscope, a camera, or an Human eye, eye, to distinguish small details of an object, thereby making it a major det ...

, the equivalent angular resolution of a 100 m telescope. PIONIER has been built at LAOG and has been installed at

in November 2010. After few nights of commissioning, it is now routinely delivering science data.

References

External links

* IPAG (Grenoble) - PIONIER project home * OSUG Grenoble – PIONIER instrument * ESO PIONIER – instrument description * ESO VLTI – about the interferometer at the VLT Astronomical observatories in Chile Telescope instruments Interferometric telescopes {{observatory-stub

See also

References

External links