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The Magellanic zoo: Mid-infrared Spitzer spectroscopy of evolved stars and circumstellar dust in the Magellanic Clouds
G. C. Sloan, K. E. Kraemer, P. R. Wood +4
We observed a sample of evolved stars in the Large and Small Magellanic Clouds (LMC and SMC) with the Infrared Spectrograph on the Spitzer Space Telescope. Comparing samples from t…
Chemical composition and mixing in giant HII regions: NGC3603, 30Doradus, and N66
V. Lebouteiller, J. Bernard-Salas, B. Brandl +5
We investigate the chemical abundances of NGC3603 in the Milky Way, of 30Doradus in the Large Magellanic Cloud, and of N66 in the Small Magellanic Cloud. Mid-infrared observations…
High resolution mid-infrared spectroscopy of ultraluminous infrared galaxies
D. Farrah, J. Bernard-Salas, H. W. W. Spoon +8
(Abridged) We present R~600, 10-37um spectra of 53 ULIRGs at z<0.32, taken using the IRS on board Spitzer. All of the spectra show fine structure emission lines of Ne, O, S, Si and…
Spitzer/IRS Imaging and Spectroscopy of the luminous infrared galaxy NGC 6052 (Mrk 297)
D. G. Whelan, D. Devost, V. Charmandaris +2
We present photometric and spectroscopic data of the interacting starburst galaxy NGC 6052 obtained with the Spitzer Space Telescope. The mid-infrared (MIR) spectra of the three br…
PAH Strength and the Interstellar Radiation Field around the Massive Young Cluster NGC3603
V. Lebouteiller, B. Brandl, J. Bernard-Salas +2
We present spatial distribution of polycyclic aromatic hydrocarbons and ionized gas within the Galactic giant HII region NGC3603. Using the IRS instrument on board the Spitzer Spac…
Observations of Ultraluminous Infrared Galaxies with the Infrared Spectrograph on the Spitzer Space Telescope II: The IRAS Bright Galaxy Sample
L. Armus, V. Charmandaris, J. Bernard-Salas +13
We present spectra taken with the Infrared Spectrograph on Spitzer covering the 5-38 micron region of the ten Ultraluminous Infrared Galaxies (ULIRGs) found in the IRAS Bright Gala…