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The Galactic Center cloud G2 and its gas streamer
Oliver Pfuhl, Stefan Gillessen, Frank Eisenhauer +10
We present new, deep near-infrared SINFONI @ VLT integral field spectroscopy of the gas cloud G2 in the Galactic Center, from late summer 2013 and spring 2014. G2 is visible in rec…
The Nuclear Cluster of the Milky Way: Total Mass and Luminosity (long version)
Tobias K. Fritz, Sotiris Chatzopoulos, Ortwin Gerhard +6
Like many other late-type galaxies, the Milky Way contains a nuclear star cluster. In this work we obtain the basic properties of its dominant old stellar population. Firstly, we d…
The old nuclear star cluster in the Milky Way: dynamics, mass, statistical parallax, and black hole mass
Sotiris Chatzopoulos, Tobias Fritz, Ortwin Gerhard +4
We derive new constraints on the mass, rotation, orbit structure and statistical parallax of the Galactic old nuclear star cluster (NSC) and the mass of the supermassive black hole…