AAS 203rd Meeting, January 2004
Session 112 The Milky Way and Its Environs
Poster, Thursday, January 8, 2004, 9:20am-4:00pm, Grand Hall

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[112.05] Multifrequency Radio Observations of the Galactic Center Quintuplet and Arches Clusters

C.C. Lang (Univ. of Iowa), K.E. Johnson (Univ. of Wisconsin), W.M. Goss (NRAO), L.F. Rodriguez (UNAM)

At least two massive stellar clusters reside in the vicinty of the famous Galactic Center Radio Arc, a collection of thermal and non-thermal sources located ~30 pc from the center of the Milky Way, SgrA*. We now realize that these clusters, known as the Arches and the Quintuplet clusters, each contain as many as 100 evolved, massive stars and have a profound impact on the surrounding environment. By combining radio, near-infrared and X-ray observations, a much more complete picture of this unique region has emerged. One of the most interesting discoveries has been the detection of clusters of radio sources associated with these two stellar clusters. The intepretation for the majority of the radio sources is that they represent stellar wind emission from the expanding envelopes of the highly-evolved members of these clusters. However, there are several sources which do not fit into this interpretation. I will present our recent multi-epoch, high-resolution VLA observations of these two clustsers and discuss the impact of these massive stars on the surrounding interstellar region.

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Bulletin of the American Astronomical Society, 35#5
© 2003. The American Astronomical Soceity.