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High-velocity neon line emission from the ULIRG IRAS F00183-7111: revealing the optically obscured base of a nuclear outflow
H. W. W. Spoon, L. Armus, J. A. Marshall +4
We report the first mid-IR detection of highly disturbed ionized gas in the ultraluminous infrared galaxy IRAS F00183-7111. The gas, traced by the 12.81um [NeII] and 15.56um [NeIII…
Spitzer Mid-Infrared Spectroscopy of Infrared Luminous Galaxies at z~2 II: Diagnostics
Anna Sajina, Lin Yan, Lee Armus +4
We present mid-IR spectral decomposition of a sample of 48 Spitzer-selected ULIRGs spanning z~1-3 and likely L_IR~10^12-10^13Lsun. Our study aims at quantifying the star-formation…
Measuring PAH Emission in Ultradeep Spitzer IRS Spectroscopy of High Redshift IR Luminous Galaxies
H. I. Teplitz, V. Desai, L. Armus +10
The study of the dominant population of high redshift IR-luminous galaxies (10^11 - 10^12 Lsun at 1<z<3), requires observation of sources at the ~0.1 mJy level in the mid-IR. We pr…
Infrared Molecular Starburst Fingerprints in Deeply Obscured (U)LIRG Nuclei
F. Lahuis, H. W. W. Spoon, A. G. G. M. Tielens +6
High resolution spectra of the Spitzer Space Telescope show vibration-rotation absorption bands of gaseous C2H2, HCN, and CO2 molecules toward a sample of deeply obscured (U)LIRG n…
The Mid-IR Properties of Starburst Galaxies from Spitzer-IRS Spectroscopy
B. R. Brandl, J. Bernard-Salas, H. W. W. Spoon +14
We present 5-38um mid-infrared spectra at a spectral resolution of R~65-130 of a large sample of 22 starburst nuclei taken with the Infrared Spectrograph IRS on board the Spitzer S…
The Detection of Crystalline Silicates in Ultra-Luminous Infrared Galaxies
H. W. W. Spoon, A. G. G. M. Tielens, L. Armus +6
Silicates are an important component of interstellar dust and the structure of these grains -- amorphous versus crystalline -- is sensitive to the local physical conditions. We hav…
Observations of Ultraluminous Infrared Galaxies with the Infrared Spectrograph on the Spitzer Space Telescope: Early Results on Mrk 1014, Mrk 463, and UGC 5101
L. Armus, V. Charmandaris, H. W. W. Spoon +2
We present spectra taken with the Infrared Spectrograph on Spitzer covering the 5-38micron region of three Ultraluminous Infrared Galaxies (ULIRGs): Mrk 1014 (z=0.163), and Mrk 463…
ISOCAM-CVF 5-12 mum Spectroscopy of Ultraluminous Infrared Galaxies
Q. D. Tran, D. Lutz, R. Genzel +10
We present low resolution mid infrared spectra of 16 ultraluminous infrared galaxies (ULIRGs) obtained with the CVF spectroscopy mode of ISOCAM on board the Infrared Space Observat…