Publications (6)
GRAVITY: a four-telescope beam combiner instrument for the VLTI
S. Gillessen, F. Eisenhauer, G. Perrin +60
GRAVITY is an adaptive optics assisted Beam Combiner for the second generation VLTI instrumentation. The instrument will provide high-precision narrow-angle astrometry and phase-re…
Performance study of ground-based infrared Bracewell interferometers - Application to the detection of exozodiacal dust disks with GENIE
O. Absil, R. den Hartog, P. Gondoin +4
Nulling interferometry, a powerful technique for high-resolution imaging of the close neighbourhood of bright astrophysical objets, is currently considered for future space mission…
PIONIER: a 4-telescope visitor instrument at VLTI
Jean-Baptiste Le Bouquin, J. -P. Berger, B. Lazareff +43
PIONIER stands for Precision Integrated-Optics Near-infrared Imaging ExpeRiment. It combines four 1.8m Auxilliary Telescopes or four 8m Unit Telescopes of the Very Large Telescope…
High contrast at short separation with VLTI/GRAVITY: Bringing Gaia companions to light
N. Pourré, T. O. Winterhalder, J. -B. Le Bouquin +173
Since 2019, GRAVITY has provided direct observations of giant planets and brown dwarfs at separations of down to 95 mas from the host star. Some of these observations have provided…
PIONIER: a status report
J. -B. Le Bouquin, J. -P. Berger, G. Zins +33
The visitor instrument PIONIER provides VLTI with improved imaging capabilities and sensitivity. The instrument started routinely delivering scientific data in November 2010, that…
PIONIER: a visitor instrument for the VLTI
J. -P. Berger, G. Zins, B. Lazareff +35
PIONIER is a 4-telescope visitor instrument for the VLTI, planned to see its first fringes in 2010. It combines four ATs or four UTs using a pairwise ABCD integrated optics combine…