Monitoring Observations of the Galactic Center Region

We propose to continue our monitoring campaign using XMMNewton and Chandra ofthe inner 1.2 square degree region centered on the Galactic Center. We will beable to detect transients in this region with a peak luminosity of 1E331E35ergs/s, 10 to 1000 times more sensitive than what is possible with othersatellites (i.e., RXTE and INTEGRAL). This allows us to observe a very poorlystudied group of transients and to follow the luminosity behavior of faint(virgul1E36 ergs/s) persistent sources.