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

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

2005-12-16

arxiv.org/abs/astro-ph/0512440v1

Astronomy and Astrophysics

Astrophysics

submitted to A&A 26/10/2005; accepted by A&A: 14/12/2005; 50 pages; 19 figures

Scientific paper

10.1051/0004-6361:20054418

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.

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