activity
19972022
most citedDetection of the gravitational redshift in the orbit of the star S2 near the Galactic centre massive black hole

947 citations · 9.4k across the 84 of their papers we have counts for

collaborators
Showing astro-ph.GAShow all

26 papers · 1 filter

astro-ph.GA2022

Towards measuring supermassive black hole masses with interferometric observations of the dust continuum

GRAVITY Collaboration, A. Amorim, G. Bourdarot +40

This work focuses on active galactic nuclei (AGNs), and the relation between the sizes of the hot dust continuum and the broad-line region (BLR). We find that the continuum size me…

astro-ph.GA2021

A geometric distance to the supermassive black Hole of NGC 3783

GRAVITY Collaboration, A. Amorim, M. Bauböck +45

The angular size of the broad line region (BLR) of the nearby active galactic nucleus (AGN) NGC 3783 has been spatially resolved by recent observations with VLTI/GRAVITY. A reverbe…

astro-ph.GA2021

Fornax 3D project: assessing the diversity of IMF and stellar population maps within the Fornax Cluster

I. Martín-Navarro, F. Pinna, L. Coccato +14

The stellar initial mass function (IMF) is central to our interpretation of astronomical observables and to our understanding of most baryonic processes within galaxies. The univer…

astro-ph.GA2021

The Fornax3D project: Planetary nebulae catalogue and independent distance measurements to Fornax cluster galaxies

T. W. Spriggs, M. Sarz, P. M. Galán-de Anta +17

Extragalactic planetary nebulae (PNe) offer a way to determine the distance to their host galaxies thanks to the nearly universal shape of the planetary nebulae luminosity function…

astro-ph.GA2021★ 5 cited

The Fornax 3D project: PNe populations and stellar metallicity in edge-on galaxies

P. M. Galán-de Anta, M. Sarzi, T. W. Spriggs +17

Context. Extragalactic Planetary Nebulae (PNe) are useful distance indicators and are often used to trace the dark-matter content in external galaxies. At the same time, PNe can al…

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…