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Author

R. Abuter

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3 papers indexed here

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Aug 2026

VLTI system upgrades: recent engineering progress and future developments

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. · 3 citations
Open access Aug 2026

Discovery of a star sensitive to the spin of Sagittarius A*

Residing in the centre of the Milky Way, Sagittarius A* (Sgr A*) is the closest massive black hole1 (MBH). Its vicinity has allowed measuring individual stellar orbits around it2, 3–4. The stars act as test particles and probe the gravitational potential around the 4.3 × 106M⊙ MBH. These observations have determined th...

K. A. El Dayem, R. Abuter, N. Aimar et al. · 1 citation
Aug 2026

PLANETES: a technology demonstrator for dual-field interferometry in the J-Band at the VLTI

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. · 0 citations

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