GRAVITY is a new instrument to coherently combine the light of the European Southern Observatory Very Large Telescope Interferometer to form a telescope with an equivalent 130m diameter angular resolution and a collecting area of 200 m(2). The instrument comprises fiber fed integrated optics beam combination, high resolution spectroscopy, built-in beam analysis and control, near-infrared wavefront sensing, phase-tracking, dual-beam operation, and laser metrology. GRAVITY opens up to optical/infrared interferometry the techniques of phase referenced imaging and narrow angle astrometry, in many aspects following the concepts of radio interferometry. This article gives an overview of GRAVITY and reports on the performance and the first astrono...
International audienceGRAVITY+ is the upgrade of GRAVITY and the Very Large Telescope Interferometer...
GRAVITY+ is the upgrade for GRAVITY and the Very Large Telescope Interferometer (VLTI) with wide-sep...
We present the adaptive optics assisted, near-infrared VLTI instrument - GRAVITY - for precision nar...
GRAVITY is a new instrument to coherently combine the light of the European Southern Observatory Ver...
International audienceGRAVITY is a new instrument to coherently combine the light of the European So...
International audienceWith the arrival of the second generation instrument GRAVITY, the Very Large T...
GRAVITY+ is the upgrade for GRAVITY and the Very Large Telescope Interferometer (VLTI) with wide-sep...
International audienceGRAVITY+ is the upgrade of GRAVITY and the Very Large Telescope Interferometer...
GRAVITY+ is the upgrade for GRAVITY and the Very Large Telescope Interferometer (VLTI) with wide-sep...
We present the adaptive optics assisted, near-infrared VLTI instrument - GRAVITY - for precision nar...
GRAVITY is a new instrument to coherently combine the light of the European Southern Observatory Ver...
International audienceGRAVITY is a new instrument to coherently combine the light of the European So...
International audienceWith the arrival of the second generation instrument GRAVITY, the Very Large T...
GRAVITY+ is the upgrade for GRAVITY and the Very Large Telescope Interferometer (VLTI) with wide-sep...
International audienceGRAVITY+ is the upgrade of GRAVITY and the Very Large Telescope Interferometer...
GRAVITY+ is the upgrade for GRAVITY and the Very Large Telescope Interferometer (VLTI) with wide-sep...
We present the adaptive optics assisted, near-infrared VLTI instrument - GRAVITY - for precision nar...