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The two states of Sgr A* in the near-infrared: bright episodic flares on top of low-level continuous variability
K. Dodds-Eden, S. Gillessen, T. K. Fritz +11
In this paper we examine properties of the variable source Sgr A* in the near-infrared (NIR) using a very extensive Ks-band data set from NACO/VLT observations taken 2004 to 2009.…
GC-IRS13E - A puzzling association of three early-type stars
Tobias K. Fritz, Stefan Gillessen, Katie Dodds-Eden +9
We present a detailed analysis of high resolution near-infrared imaging and spectroscopy of the potential star cluster IRS13E very close to the massive black hole in the Galactic C…
Flares from Sgr A* and their emission mechanism
K. Dodds-Eden, D. Porquet, G. Trap +12
We summarize recent observations and modeling of the brightest Sgr A* flare to be observed simultaneously in (near)-infrared and X-rays to date. Trying to explain the spectral char…
The power of monitoring stellar orbits
S. Gillessen, F. Eisenhauer, H. Bartko +5
The center of the Milky Way hosts a massive black hole. The observational evidence for its existence is overwhelming. The compact radio source Sgr A* has been associated with a bla…
Massive Young Stars in the Galactic Center
H. Bartko
We summarize our latest observations of the nuclear star cluster in the central parsec of the Galaxy with the adaptive optics assisted, integral field spectrograph SINFONI on the E…