402 citations · 770 across the 17 of their papers we have counts for
12 papers · 1 filter
Interacting stellar winds feeding Sgr A*: from the system of mass-losing stars to the binary IRS 16SW
Diego Calderón, Jorge Cuadra, Christopher M. P. Russell +3
The discovery of cold structures around Sgr A* has challenged our understanding of the gas dynamics and thermodynamic state of the plasma in its vicinity. This work aims to constra…
Superdiffusion at the Galactic Centre
Pau Amaro Seoane, Kostas Tzanavaris, Reinhard Genzel +14
Tracking S-star cluster orbits around Sgr A* calibrates orbital transport models for space-borne gravitational wave detectors. Standard kinetic theories model this cluster via loca…
Stellar rotation of S301 as a macroscopic gyroscope to test general relativity
Pau Amaro Seoane, Xian Chen, Alejandro Torres-Orjuela +16
Stellar trajectories around the Galactic Center provide a testing environment for general relativity. The intrinsic rotation of these stars evolves under covariant transport in cur…
S301 and friends: Measuring the spin of Sgr A*
T. Piran, P. Amaro-Seoane, B. Aytac +15
The discovery of S301 (GRAVITY Collaboration et al., 2026) with pericenter distance rp= 280rg and eccentricity e=0.9825, opens the prospect of measuring the spin parameter of Sgr A…
The gas streamer G1-2-3 in the Galactic Center
S. Gillessen, F. Eisenhauer, J. Cuadra +61
The black hole in the Galactic Center, Sgr A*, is prototypical for ultra-low-fed galactic nuclei. The discovery of a hand-full of gas clumps in the realm of a few Earth masses in i…
Tidal phenomena in the Galactic Center: The curious case of X7
Wasif Shaqil, Diego Calderón, Stephan Rosswog +5
Several enigmatic dusty sources have been detected in the central parsec of the Galactic Center. Among them is X7, located at only 0.02 pc from the central super-massive blac…
The formation and stability of a cold disc made out of stellar winds in the Galactic Centre
Diego Calderón, Jorge Cuadra, Christopher M. P. Russell +3
The reported discovery of a cold (~10 K) disc-like structure within 0.005 pc around the super-massive black hole at the centre of the Milky Way, Sgr A*, has challenged our unde…
Clump formation through colliding stellar winds in the Galactic Centre
D. Calderón, A. Ballone, J. Cuadra +3
The gas cloud G2 is currently being tidally disrupted by the Galactic Centre super-massive black hole, Sgr A*. The region around the black hole is populated by Wolf-Rayet…
Super massive black holes in star forming gaseous circumnuclear discs
Luciano del Valle, Andres Escala, Cristian Maureira-Fredes +3
Using N-body/SPH simulations we study the evolution of the separation of a pair of SMBHs embedded in a star forming circumnuclear disk (CND). This type of disk is expected to be fo…
Tidal disruptions in circumbinary disks. II: Observational signatures in the reverberation spectra
Patrick Brem, Jorge Cuadra, Pau Amaro-Seoane +1
Supermassive Binary Black Holes (SMBBHs) with sub-pc separations form in the course of galaxy mergers, if both galaxies harbour massive black holes. Clear observational evidence fo…
Observations of the gas cloud G2 in the Galactic Center
Stefan Gillessen, Reinhard Genzel, Tobias K. Fritz +6
In 2011, we discovered a compact gas cloud ("G2") with roughly three Earth masses that is falling on a near-radial orbit toward the massive black hole in the Galactic Center. The o…
New observations of the gas cloud G2 in the Galactic Center
S. Gillessen, R. Genzel, T. K. Fritz +6
We present new observations of the recently discovered gas cloud G2 currently falling towards the massive black hole in the Galactic Center. The new data confirm that G2 is on a hi…