activity
20122024
most citedDetection of the Schwarzschild precession in the orbit of the star S2 near the Galactic centre massive black hole

551 citations · 1.8k across the 26 of their papers we have counts for

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7 papers · 1 filter

astro-ph.IM2022

GRAVITY+ Wide: Towards hundreds of z 2 AGN

A. Drescher, M. Fabricius, T. Shimizu +34

As part of the GRAVITY project, the near-infrared beam combiner GRAVITY and the VLTI are currently undergoing a series of significant upgrades to further improve the performa…

astro-ph.IM2022

GRAVITY faint: reducing noise sources in GRAVITY with a fast metrology attenuation system

F. Widmann, S. Gillessen, T. Ott +28

With the upgrade from GRAVITY to GRAVITY the instrument will evolve into an all-sky interferometer that can observe faint targets, such as high redshift AGN. Observing the fain…

astro-ph.IM20203 cited

GRAVITY acquisition camera: characterization results

Narsireddy Anugu, Paulo Garcia, Antonio Amorim +10

GRAVITY acquisition camera implements four optical functions to track multiple beams of Very Large Telescope Interferometer (VLTI): a) pupil tracker: a lenslet images…

astro-ph.IM2017

First Light for GRAVITY: Phase Referencing Optical Interferometry for the Very Large Telescope Interferometer

GRAVITY Collaboration, R. Abuter, M. Accardo +130

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 130 m di…

astro-ph.IM20153 cited

GRAVITY: the VLTI 4-beam combiner for narrow-angle astrometry and interferometric imaging

N. Blind, F. Eisenhauer, S. Gillessen +23

GRAVITY is the second generation Very Large Telescope Interferometer instrument for precision narrow-angle astrometry and interferometric imaging in the Near Infra-Red (NIR). It sh…

astro-ph.IM201210 cited

GRAVITY: beam stabilization and light injection subsystems

O. Pfuhl, M. Haug, F. Eisenhauer +9

We present design results of the 2nd generation VLTI instrument GRAVITY beam stabilization and light injection subsystems. Designed to deliver micro-arcsecond astrometry, GRAVITY r…