activity
20032026
most citedA geometric distance measurement to the Galactic Center black hole with 0.3% uncertainty

826 citations · 2.4k across the 16 of their papers we have counts for

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Showing astro-ph.GAShow all

8 papers · 1 filter

astro-ph.GA2026

First Observation of CO Emission and foreground absorption Toward the Galactic Center with JWST

J. Qiu, A. Ciurlo, M. R. Morris +11

CO is an important, stable, and abundant molecule in the Universe, but it is very difficult to detect because it has no observable pure rotational transitions. The unique sensi…

astro-ph.GA2023★ 7 cited

Chromatically modelling the parsec scale dusty structure in the centre of NGC1068

James Leftley, Romain Petrov, Niklas Moszczynski +19

The Very Large Telescope Interferometer (VLTI) has been providing breakthrough images of the dust in the central parsecs of Active Galactic Nuclei (AGN), a key component of the AGN…

astro-ph.GA2023★ 93 cited

Polarimetry and Astrometry of NIR Flares as Event Horizon Scale, Dynamical Probes for the Mass of Sgr A*

The GRAVITY Collaboration, R. Abuter, N. Aimar +66

We present new astrometric and polarimetric observations of flares from Sgr A* obtained with GRAVITY, the near-infrared interferometer at ESO's Very Large Telescope Interferometer…

astro-ph.GA2020★ 84 cited

The spatially resolved broad line region of IRAS 09149-6206

GRAVITY Collaboration, A. Amorim, W. Brandner +41

We present new near-infrared VLTI/GRAVITY interferometric spectra that spatially resolve the broad Br emission line in the nucleus of the active galaxy IRAS 09149-6206. We use t…

astro-ph.GA2019★ 72 cited

Scalar field effects on the orbit of S2 star

António Amorim, Michael Bauböck, Myriam Benisty +35

Precise measurements of the S-stars orbiting SgrA* have set strong constraints on the nature of the compact object at the centre of the Milky Way. The presence of a black hole in t…

astro-ph.GA2019★ 826 cited

A geometric distance measurement to the Galactic Center black hole with 0.3% uncertainty

R. Abuter, A. Amorim, M. Bauboeck +51

We present a 0.16% precise and 0.27% accurate determination of R0, the distance to the Galactic Center. Our measurement uses the star S2 on its 16-year orbit around the massive bla…