activity
20002023
most citedClosest Star Seen Orbiting the Supermassive Black Hole at the Centre of the Milky Way

1.2k citations · 2.1k across the 10 of their papers we have counts for

collaborators

10 papers

astro-ph.IM2023★ 42 cited

The Enhanced Resolution Imager and Spectrograph for the VLT

R. Davies, O. Absil, G. Agapito +81

ERIS, the Enhanced Resolution Imager and Spectrograph, is an instrument that both extends and enhances the fundamental diffraction limited imaging and spectroscopy capability for t…

astro-ph.IM2015★ 5 cited

The GRAVITY metrology system: narrow-angle astrometry via phase-shifting interferometry

M. Lippa, N. Blind, S. Gillessen +26

The VLTI instrument GRAVITY will provide very powerful astrometry by combining the light from four telescopes for two objects simultaneously. It will measure the angular separation…

astro-ph.CO2011★ 22 cited

Infrared Narrow-Band Tomography of the Local Starburst NGC 1569 with LBT/LUCIFER

A. Pasquali, A. Bik, S. Zibetti +24

We used the near-IR imager/spectrograph LUCIFER mounted on the Large Binocular Telescope (LBT) to image, with sub-arcsec seeing, the local dwarf starburst NGC 1569 in the JHK bands…

astro-ph.CO2010★ 171 cited

Black Hole Mass Estimates Based on CIV are Consistent with Those Based on the Balmer Lines

R. J. Assef, K. D. Denney, C. S. Kochanek +39

Using a sample of high-redshift lensed quasars from the CASTLES project with observed-frame ultraviolet or optical and near-infrared spectra, we have searched for possible biases b…

astro-ph.IM2010★ 56 cited

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…

astro-ph2008★ 72 cited

GRAVITY: getting to the event horizon of Sgr A*

F. Eisenhauer, G. Perrin, W. Brandner +45

We present the second-generation VLTI instrument GRAVITY, which currently is in the preliminary design phase. GRAVITY is specifically designed to observe highly relativistic motion…