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
In the 2030s, optical/IR interferometry will be the natural next step to push angular resolution beyond the current VLT/I and ELTs. Key astrophysical questions in that time-frame are the fundamental tests of General Relativity, the evolution of supermassive black holes across cosmic time, the understanding of exoplanet...
G. Bourdarot, F. Eisenhauer, B. Neichel et al.· Astronomical Telescopes + In...· 0 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
Laser guide star (LGS) adaptive optics has become widespread in ground-based astronomy. It is also the most promising approach for countering atmospheric distortions in uplink optical satellite communications and laser-based space debris tracking and maneuvering. The best performance is achieved when the LGS is created...
Konstantin B. Holzner, Christopher Renkl, M. Brekenfeld et al.· Astronomical Telescopes + In...· 2 citations
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