activity
20052021
most citedA geometric distance measurement to the Galactic Center black hole with 0.3% uncertainty

826 citations · 1.7k across the 9 of their papers we have counts for

collaborators

9 papers

astro-ph.SR2021★ 42 cited

A measure of the size of the magnetospheric accretion region in TW Hydrae

R. Garcia Lopez, A. Natta, A. Caratti o Garatti +69

Stars form by accreting material from their surrounding disks. There is a consensus that matter flowing through the disk is channelled onto the stellar surface by the stellar magne…

astro-ph.EP2019★ 141 cited

Peering into the formation history of beta Pictoris b with VLTI/GRAVITY long baseline interferometry

GRAVITY Collaboration, M. Nowak, S. Lacour +65

Our objective is to estimate the C/O ratio in the atmosphere of beta Pictoris b and obtain an estimate of the dynamical mass of the planet, as well as to refine its orbital paramet…

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…

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…

astro-ph.IM2018★ 4 cited

A recent history of science cases for interferometry

D. Defrère, C. Aerts, M. Kishimoto +1

Optical long-baseline interferometry is a unique and powerful technique for astronomical research. Since 2004, optical interferometers have produced an increasing number of scienti…

astro-ph.HE2017★ 17 cited

Accretion-ejection morphology of the microquasar SS433 resolved at sub-au scale

GRAVITY Collaboration, P. -O. Petrucci, I. Waisberg +67

We present the first optical observation at sub-milliarcsecond (mas) scale of the microquasar SS 433 obtained with the GRAVITY instrument on the VLT interferometer. The 3.5 hour ex…