activity
20012026
most citedDetection of the gravitational redshift in the orbit of the star S2 near the Galactic centre massive black hole

947 citations · 8.4k across the 154 of their papers we have counts for

collaborators

156 papers

astro-ph.GA2026

Improving constraints on the Yukawa correction at the Galactic Center with multiple stellar orbits

GRAVITY+ Collaboration, :, A. Foschi +78

We investigate the presence of a Yukawa-like correction () to Newtonian gravity at the Galactic Center, using a multi-star fitting code, including the newly…

astro-ph.IM2026

GRAVITY+: reducing non-common-path aberrations for sub-10 μas astrometric accuracy

Quentin Fournier, Guillaume Bourdarot, Frank Eisenhauer +26

GRAVITY is a state-of-the-art instrument for near-infrared astrometric interferometry that routinely achieves astrometric accuracy of 30-100 microarcsecond in its phase-referenced…

astro-ph.GA2026★ 1 cited

Discovery of a star sensitive to the spin of Sgr A*

K. Abd El Dayem, R. Abuter, N. Aimar +85

Residing in the center of the Milky Way, Sgr A* is the closest massive black hole (MBH). Its vicinity has allowed measuring individual stellar orbits around it. The stars act as te…

astro-ph.EP2026

Using VLTI/GRAVITY+ to determine the identity of a third planet candidate in the PDS 70 system

David Trevascus, Wolfgang Brandner, Olga Balsalobre-Ruza +75

Detections of protoplanets are rare and protoplanetary disk features mischaracterized as planets are common. PDS 70 is one of only two stars known to host multiple confirmed protop…

astro-ph.SR2026

The GRAVITY young stellar object survey -- XV. The star-disk interaction region of the T Tauri star DO Tau

GRAVITY Collaboration, K. Perraut, J. Bouvier +61

Protoplanetary disks around young Sun-like stars are the cradles of the vast majority of detected exoplanets. Probing these disks at multiple spatial scales is key to uncovering ho…

astro-ph.EP2026

Direct spectroscopic confirmation of the young embedded proto-planet WISPIT 2c

Chloe Lawlor, Richelle F. van Capelleveen, Guillaume Bourdarot +18

WISPIT 2 is a nearby young star with a multi-ringed disk which was recently confirmed to host a ~4.9 MJup gas giant planet embedded in a large (60 au) gap at a radial separation of…