| A 7.5 square degree region of the galactic plane near l = 13(DEGREES).5 has been surveyed with the Center for Astrophysics/University of Arizona. 1.02-m balloon-borne telescope and a 1 aremin resolution 40-250 (mu)m photometer. Forty-three far-infrared sources were detected. Comparison of the far-infrared and radio continuum flux densities of seventeen HII regions in the surveyed area indicates that dust does not significantly alter their ionization structure. Several of the far-infrared sources are not also strong radio continuum sources and may be late-O or early-B stars embedded in the M17SW giant molecular cloud. The W33 complex has been resolved into several far-infrared sources for the first time. The far-infrared peak near the maser source W33A, a source probably at an early stage of stellar evolution, is unresolved with the 1 aremin beam and has a bolometric luminosity of 1.6 x 10('5) L(,(CIRCLE)). |
