205 citations · 530 across the 6 of their papers we have counts for
6 papers
Detailed abundance analysis of a metal-poor giant in the Galactic Center
N. Ryde, T. K. Fritz, R. M. Rich +4
We report the first results from our program to examine the metallicity distribution of the Milky Way nuclear star cluster connected to SgrA*, with the goal of inferring the star f…
Testing General Relativity with the Shadow Size of Sgr A*
Tim Johannsen, Avery E. Broderick, Philipp M. Plewa +7
In general relativity, the angular radius of the shadow of a black hole is primarily determined by its mass-to-distance ratio and depends only weakly on its spin and inclination. I…
Dust within the old nuclear star cluster in the Milky Way
Sotiris Chatzopoulos, Ortwin Gerhard, Tobias Fritz +2
The mean absolute extinction towards the central parsec of the Milky Way is A_K~3 mag, including both foreground and Galactic center dust. Here we present a measurement of dust ext…
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…
The Nuclear Cluster of the Milky Way: Total Mass and Luminosity
Tobias K. Fritz, Sotiris Chatzopoulos, Ortwin Gerhard +6
Here we present the fundamental properties of the nuclear cluster of the Milky Way. First, we derive its structural properties by constructing a density map of the central 1000'' u…