Future high contrast interferometric observations with the Very Large Telescope Interferometer (VLTI) require nanometer level control of optical path variations to preserve fringe stability and maximize sensitivity. Within the framework of the PLANETES project, a dedicated laser metrology system is being developed to m...
Amira Bouikni, M. Nowak, Sylvestre Lacour et al.· Astronomical Telescopes + In...· 0 citations
Over the past six years, the VLTI has undergone major upgrades, significantly improving its stability, sensitivity, and operational reliability. This has enabled the highest-angular-resolution images of stars orbiting our Galactic Center, high-precision interferometric astrometric measurements of exoplanet systems, and...
Luis Esteras Otal, J. Abad, R. Abuter et al.· Astronomical Telescopes + In...· 3 citations
We present an overview of how recent and upcoming GRAVITY+ upgrades at the VLTI interconnect instrument and science, enabling high-angular-resolution studies of active galactic nuclei (AGN). Improvements such as wideangle off-axis fringe tracking, enhanced fringe-tracker performance, and state-of-the-art adaptive optic...
S. Pappert, Yi-Xian Cao, R. Davies et al.· Astronomical Telescopes + In...· 1 citation
We present PLANETES, a technology development project that aims at demonstrating GRAVITY-style dualfield interferometry into the J band. Building on PIONIER’s legacy in short-wavelength interferometry and GRAVITY’s breakthroughs in dual-field operation, this demonstrator integrates dual-field injection, integratedoptic...
M. Nowak, Sylvestre Lacour, R. Abuter et al.· Astronomical Telescopes + In...· 0 citations
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