Eckart A. , Schoedel R. , Meyer L. , Trippe S. , Ott T. , and Genzel R.
NIR/X-RAY VARIABILITY AND POLARIZED NIR EMISSION OF
SGRA*

NIR/X-RAY VARIABILITY AND POLARIZED NIR EMISSION OF
SGRA*

Eckart A. (1), Schoedel R. (1), Meyer L. (1), Trippe S. (2), Ott T. (2), and Genzel R. (2)
(1) University of Cologne
(2) Max Planck Institute for extraterrestrial physics

I will report new simultaneous near-infrared/sub-millimeter/X-ray observations of the SgrA* counterpart associated with the massive 3-4 million solar masses black hole at the Galactic Center. The observations have been carried out using the NACO adaptive optics (AO) instrument at the European Southern Observatory's Very Large Telescope and the ACIS-I instrument aboard the Chandra X-ray Observatory as well as the Submillimeter Array on Mauna Kea, Hawaii, and the Very Large Array in New Mexico. In addition the most recent results from a VLT NACO observations of polarized NIR flare emission of SgrA* is presented and interpreted using a model in which spots are on relativistic orbits around SgrA*.