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From: Andreas Eckart  eckart@ph1.uni-koeln.de 
To: gcnews@aoc.nrao.edu



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\noindent
The Flare Activity of SgrA*; New Coordinated mm to X-Ray Observations
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A. Eckart, F. K. Baganoff, R. Schoedel, M. Morris, R. Genzel,
G.C. Bower, D. Marrone, J.M. Moran, T. Viehmann, M.W. Bautz,
W.N. Brandt, G.P. Garmire, T. Ott, S. Trippe, G.R. Ricker,
C. Straubmeier, D.A. Roberts, F. Yusef-Zadeh, J.H. Zhao, R. Rao
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%astro-ph/0512440
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\begin{abstract}
We report new simultaneous near-infrared/sub-millimeter/X-ray
observations of the SgrA* counterpart associated with the
massive 3-4x10**6 solar mass black hole at the Galactic Center.
The main aim is to investigate the physical processes
responsible for the variable emission from SgrA*.
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
SMA on Mauna Kea, Hawaii, and the Very Large Array in New Mexico.
We detected one moderately bright flare event in the X-ray
domain and 5 events at infrared wavelengths.
\end{abstract}
\end{document}