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An Update on Monitoring Stellar Orbits in the Galactic Center
Stefan Gillessen, Philipp Plewa, Frank Eisenhauer +9
Using 25 years of data from uninterrupted monitoring of stellar orbits in the Galactic Center, we present an update of the main results from this unique data set: A measurement of…
3D AMR simulations of G2 as an outflow
A. Ballone, M. Schartmann, A. Burkert +8
We study the evolution of G2 in a \textit{Compact Source Scenario}, where G2 is the outflow from a low-mass central star moving on the observed orbit. This is done through 3D AMR s…
3D AMR simulations of the evolution of the diffuse gas cloud G2 in the Galactic Centre
M. Schartmann, A. Ballone, A. Burkert +8
With the help of 3D AMR hydrodynamical simulations we aim at understanding G2's nature, recent evolution and fate in the coming years. By exploring the possible parameter space of…
The metrology system of the VLTI instrument GRAVITY
Magdalena Lippa, Stefan Gillessen, Nicolas Blind +24
The VLTI instrument GRAVITY combines the beams from four telescopes and provides phase-referenced imaging as well as precision-astrometry of order 10 microarcseconds by observing t…
BlackHoleCam: fundamental physics of the Galactic center
C. Goddi, H. Falcke, M. Kramer +36
Einstein's General Theory of Relativity (GR) successfully describes gravity. The most fundamental predictions of GR are black holes (BHs), but in spite of many convincing BH candid…
The G2+G2t complex as a fast and massive outflow?
A. Ballone, M. Schartmann, A. Burkert +8
Observations of the gas component of the cloud G2 in the Galactic Center have revealed its connection to a tail (G2t) lying on the same orbit. More recent studies indicate a connec…