HUBBLE-SPACE-TELESCOPE OBSERVATIONS OF THE GALACTIC-CENTER REGION AT 1.02-MU-M

We present Hubble Space Telescope (HST) observations of the galactic c enter region using the Planetary Camera with the F1042M filter at an e ffective wavelength of 1.02 mum. We detect several infrared sources se en at this wavelength before but with angular resolution better than p revious observations. Our data reveal the source GZ A which was first seen by Rosa et al. [A&A, 257, 515 (1992)] at 1 mum. However, our astr ometry identifies this source as IRS 16C, not Sgr A. We marginally de tect an object at 2 to 3sigma coincident with the position of Sgr A t o within 0.2''. This object has unphysical continuum colors which are bluer than an infinite temperature blackbody. If the source is real an d associated with Sgr A, 1 mum line emission is a possible explanatio n. The possibility of this object being a foreground star or an HST ar tifact cannot be ruled out.