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4 papers · 2 filters
Near-infrared counterparts to Chandra X-ray sources toward the Galactic Center. II. Discovery of Wolf-Rayet stars and O supergiants
Jon C. Mauerhan, Michael P. Muno, Mark R. Morris +2
We present new identifications of infrared counterparts to the population of hard X-ray sources near the Galactic center detected by the Chandra X-ray Observatory. We have confirme…
HST/NICMOS Paschen-alpha Survey of the Galactic Center: Overview
Q. D. Wang, H. Dong, A. Cotera +6
We have recently carried out the first wide-field hydrogen Paschen-alpha line imaging survey of the Galactic Center (GC), using the NICMOS instrument aboard the Hubble Space Telesc…
First Spectroscopic Identification of Massive Young Stellar Objects in the Galactic Center
Deokkeun An, Solange V. Ramírez, Kris Sellgren +7
We report the detection of several molecular gas-phase and ice absorption features in three photometrically-selected young stellar object (YSO) candidates in the central 280 pc of…
Hubble Space Telescope NICMOS Polarization Observations of Three Edge-on Massive YSOs
Janet P. Simpson, Michael G. Burton, Sean W. J. Colgan +4
Massive young stellar objects (YSOs), like low-mass YSOs, appear to be surrounded by optically thick envelopes and/or disks and have regions, often bipolar, that are seen in polari…