activity
20182024
most citedImproved GRAVITY astrometric accuracy from modeling of optical aberrations

192 citations · 456 across the 9 of their papers we have counts for

collaborators

9 papers

astro-ph.HE2024★ 26 cited

Ordered magnetic fields around the 3C 84 central black hole

G. F. Paraschos, J. -Y. Kim, M. Wielgus +279

3C84 is a nearby radio source with a complex total intensity structure, showing linear polarisation and spectral patterns. A detailed investigation of the central engine region nec…

astro-ph.HE2023★ 1 cited

Characterization of black hole accretion through image moment invariants

A. Jiménez-Rosales, A. I. Yfantis, M. A. Mościbrodzka +1

We apply image moment invariant analysis to total intensity and polarimetric images calculated from general relativistic magnetohydrodynamic simulations of accreting black holes. W…

astro-ph.HE2023★ 24 cited

Comparison of Polarized Radiative Transfer Codes used by the EHT Collaboration

Cora Prather, Jason Dexter, Monika Moscibrodzka +270

Interpretation of resolved polarized images of black holes by the Event Horizon Telescope (EHT) requires predictions of the polarized emission observable by an Earth-based instrume…

astro-ph.GA2021★ 35 cited

Deep Images of the Galactic Center with GRAVITY

GRAVITY Collaboration, R. Abuter, N. Aimar +65

Stellar orbits at the Galactic Center provide a very clean probe of the gravitational potential of the supermassive black hole. They can be studied with unique precision, beyond th…

astro-ph.SR2021★ 23 cited

The GRAVITY Young Stellar Object Survey. VI. Mapping the variable inner disk of HD 163296 at sub-au scales

J. Sanchez-Bermudez, A. Caratti o Garatti, R. Garcia Lopez +53

Protoplanetary disks drive some of the formation process (e.g., accretion, gas dissipation, formation of structures, etc.) of stars and planets. Understanding such physical process…

astro-ph.HE2021★ 64 cited

Constraining particle acceleration in Sgr A* with simultaneous GRAVITY, Spitzer, NuSTAR and Chandra observations

R. Abuter, A. Amorim, M. Bauböck +81

We report the time-resolved spectral analysis of a bright near-infrared and moderate X-ray flare of Sgr A*. We obtained light curves in the -, -, and -bands in the mid- an…

astro-ph.GA2021★ 192 cited

Improved GRAVITY astrometric accuracy from modeling of optical aberrations

GRAVITY Collaboration, R. Abuter, A. Amorim +60

The GRAVITY instrument on the ESO VLTI pioneers the field of high-precision near-infrared interferometry by providing astrometry at the as level. Measurements at such…

astro-ph.GA2020★ 37 cited

Detection of faint stars near SgrA* with GRAVITY

GRAVITY Collaboration, R. Abuter, A. Amorim +58

The spin of the supermassive black hole that resides at the Galactic Centre can in principle be measured by accurate measurements of the orbits of stars that are much closer to Sgr…

astro-ph.HE2018★ 54 cited

The impact of Faraday effects on polarized black hole images of Sagittarius A*

Alejandra Jiménez-Rosales, Jason Dexter

We study model images and polarization maps of Sagittarius A* at 230 GHz. We post-process GRMHD simulations and perform a fully relativistic radiative transfer calculation of the e…