32 citations · 32 across the 2 of their papers we have counts for
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Spitzer Observations of M33 and the Hot Star, H II Region Connection
Robert H. Rubin, Janet P. Simpson, Sean W. J. Colgan +7
We have observed emission lines of [S IV] 10.51, H(7-6) 12.37, [Ne II] 12.81, [Ne III] 15.56, and [S III] 18.71 um in a number of extragalactic H II regions with the Spitzer Space…
Spitzer IRS Observations of the Galactic Center: Shocked Gas in the Radio Arc Bubble
Janet P. Simpson, Sean W. J. Colgan, Angela S. Cotera +4
We present Spitzer IRS spectra (R ~600, 10 - 38 micron) of 38 positions in the Galactic Center (GC), all at the same Galactic longitude and spanning plus/minus 0.3 degrees in latit…
Spitzer Observations of M83 and the Hot Star, H II Region Connection
Robert H. Rubin, Janet P. Simpson, Sean W. J. Colgan +6
We have undertaken a program to observe emission lines of SIV 10.5, NeII 12.8, NeIII 15.6, & SIII 18.7 um in a number of extragalactic HII regions with the Spitzer Space Telescope.…
Hubble Space Telescope NICMOS Polarization Measurements of OMC-1
Janet P. Simpson, Sean W. J. Colgan, Edwin F. Erickson +2
We present 2micron polarization measurements of positions in the BN region of the Orion Molecular Cloud (OMC-1) made with NICMOS Camera 2 (0.2'' resolution) on HST. Our results are…
On the Measurement of Elemental Abundance Ratios in Inner Galaxy H II Regions
Janet P. Simpson, Robert H. Rubin, Sean W. J. Colgan +2
Although variations in elemental abundance ratios in the Milky Way Galaxy certainly exist, details remain uncertain, particularly in the inner Galaxy, where stars and H II regions…