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Isolated Wolf-Rayet Stars and O Supergiants in the Galactic Center Region Identified via Paschen-alpha Excess
Jon Mauerhan, Angela Cotera, Hui Dong +4
We report the discovery of 19 hot, evolved, massive stars near the Galactic center region (GCR). These objects were selected for spectroscopy owing to their detection as strong sou…
Spitzer Observations of IC 2118
S. Guieu, L. M. Rebull, J. R. Stauffer +13
IC 2118, also known as the Witch Head Nebula, is a wispy, roughly cometary, ~5 degree long reflection nebula, and is thought to be a site of triggered star formation. In order to s…
Discovery of a Luminous Blue Variable with an Ejection Nebula Near the Quintuplet Cluster
Jon C. Mauerhan, Mark R. Morris, Angela S. Cotera +5
We report on the discovery of a luminous blue variable (LBV) lying ~7 pc in projection from the Quintuplet cluster. This source, which we call LBV G0.120-0.048, was selected for sp…
HST Palpha Survey of the Galactic Center -- Searching the missing young stellar populations within the Galactic Center
H. Dong, Q. D. Wang, A. Cotera +6
We present preliminary results of our \hst Pa survey of the Galactic Center (\gc), which maps the central 0.650.25 degrees around Sgr A*. This survey provides us with a…
Extinction toward the Compact HII Regions G-0.02-0.07
E. A. Mills, M. R. Morris, C. C. Lang +4
The four HII regions in the Sgr A East complex: A, B, C, and D, represent evidence of recent massive star formation in the central ten parsecs. Using Paschen-alpha images taken wit…