This first large-scale Chandra survey of the Galactic center region consists of 30 spatially-overlapped observations with exposure of about 11 ksec each. All these observations were taken in July, 2001. The arc-second spatial resolution and sensitivity of this survey is more detailed and complete by nearly two orders of magnitude than previous imaging in the 1-10 keV range. The survey allows, for the first time, a clean separation of the diffuse and point-like components of the X-ray emission, leading to a comprehensive characterization of high-energy activities in the region.
"A Faint Source Origin for the Highly Ionized Iron Emission from the Galactic Center Region", Q. Q. D. Wang, E. Gotthelf, & C. C. Lang, 2002, Nature 415, 148
A Nature news and review article by Andreas Eckart on the results
An updated version of the paper can be found at http://xxx.lanl.gov/abs/astro-ph/0201070
A poster presented by C. Lang, D. Wang, E. Gotthelf at the AAS meeting can be found here
A poster presented by E. Gotthelf, D. Wang, and C. Lang at the AAS meeting can be found here