The Flare Activity of SgrA*; New Coordinated mm to X-Ray Observations

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

Paper: A&A Dec.2005

EPrint Server: astro-ph/0512440


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.

Preprints available from the authors at , or the raw TeX (no figures) if you click here.

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