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D.J. Helfand, E.S. Laird, A.M. Brooks (Columbia University), R.H. Becker (UC Davis), R.L. White (STScI), R.S. Warwick, M.G. Watson (Leicester)
We have begun a high-resolution, high-sensitivity survey of the Galactic Plane at radio and X-ray wavelengths. Using the Very Large Array in its B-, C-, and D-configurations, we have constructed an image of the region 19\circ < l < 32\circ with 5\prime\prime resolution and a sensitivity of 1 mJy; an image of the same region at 90cm has also been obtained. Comparison of the radio maps with the MSX mid-infrared survey has revealed hundreds of HII regions and more than twenty new supernova remnant candidates. X-ray observations of the same region using the XMM-Newton Observatory have also begun; more than 4 deg2 has been covered to date with the detection of over 100 X-ray sources. Multiwavelength images will be presented and the prospects for constructing from these data a complete census of massive star formation and demise will be discussed.
This work has been supported in part by NASA under grant NAG5-9870.