activity
19952024
most citedRetrieving scattering clouds and disequilibrium chemistry in the atmosphere of HR 8799e

221 citations · 1.3k across the 18 of their papers we have counts for

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Showing astro-ph.GAShow all

6 papers · 1 filter

astro-ph.GA2024★ 19 cited

VLTI/GRAVITY Interferometric Measurements of Innermost Dust Structure Sizes around AGNs

GRAVITY Collaboration, A. Amorim, G. Bourdarot +41

We present new VLTI/GRAVITY near-infrared interferometric measurements of the angular size of the innermost hot dust continuum for 14 type 1 AGNs. The angular sizes are resolved on…

astro-ph.GA2021★ 83 cited

The central parsec of NGC 3783: a rotating broad emission line region, asymmetric hot dust structure, and compact coronal line region

GRAVITY Collaboration, A. Amorim, M. Bauböck +47

Using VLTI/GRAVITY and SINFONI data, we investigate the sub-pc gas and dust structure around the nearby type 1 AGN hosted by NGC 3783. The K-band coverage of GRAVITY uniquely allow…

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.GA2020★ 60 cited

The Flux Distribution of Sgr A*

The GRAVITY Collaboration, R. Abuter, A. Amorim +54

The Galactic Center black hole Sagittarius A* is a variable NIR source that exhibits bright flux excursions called flares. The low-flux density turnover of the flux distribution is…

astro-ph.GA2020★ 150 cited

Ionized outflows in local luminous AGN: what are the real densities and outflow rates?

R. Davies, D. Baron, T. Shimizu +23

We report on the determination of electron densities, and their impact on the outflow masses and rates, measured in the central few hundred parsecs of 11 local luminous active gala…

astro-ph.GA2019★ 47 cited

Test of Einstein equivalence principle near the Galactic center supermassive black hole

A. Amorim, M. Bauböck, J. P. Berger +49

During its orbit around the four million solar mass black hole Sagittarius A* the star S2 experiences significant changes in gravitational potential. We use this change of potentia…