690 citations · 852 across the 5 of their papers we have counts for
5 papers
Evidence for GR rotational frame-dragging in the light from the Sgr A* supermassive black hole
Bernd Eduard Aschenbach
The analysis of flare start-times confirms the periods found years ago (Aschenbach et al., 2004) in the near-infrared and X-ray light-curves related to the Sgr A* black hole. The a…
Non-monotonic orbital velocity profiles around rapidly rotating Kerr-(anti-)de Sitter black holes
Andreas Mueller, Bernd Aschenbach
It has been recently demonstrated that the orbital velocity profile around Kerr black holes in the equatorial plane as observed in the locally non-rotating frame exhibits a non-mon…
Mass and Angular Momentum of Sgr A*
B. Aschenbach
For very fast spinning black holes with a>0.9953 the orbital velocity of a test particle unexpectly shows a positive radial gradient for low orbits, an effect of GR which has been…
X-ray flares reveal mass and angular momentum of the Galactic Center black hole
B. Aschenbach, N. Grosso, D. Porquet +1
We have analysed the light curve of the two brightest X-ray flares from the Galactic Center black hole, one flare observed by XMM-Newton on October 3, 2002 (Porquet et al. 2003), a…
Near-infrared flares from accreting gas around the supermassive black hole at the Galactic Centre
R. Genzel, R. Schoedel, T. Ott +5
Recent measurements of stellar orbits provide compelling evidence that the compact radio source Sagittarius A* at the Galactic Centre is a 3.6-million-solar-mass black hole. Sgr A*…