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The distribution of silicate strength in Spitzer spectra of AGNs and ULIRGs
Lei Hao, D. W. Weedman, H. W. W. Spoon +4
A sample of 196 AGNs and ULIRGs observed by the Infrared Spectrograph (IRS) on Spitzer is analyzed to study the distribution of the strength of the 9.7 micron silicate feature. Ave…
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…
AGN and Starburst Classification from Spitzer Mid-Infrared Spectra for High Redshift SWIRE Sources
D. Weedman, M. Polletta, C. J. Lonsdale +7
Spectra have been obtained with the Infrared Spectrograph (IRS) on the Spitzer Space Telescope for 20 sources in the Lockman Hole field of the SWIRE survey. The sample is divided b…
Spitzer IRS Spectra of Optically Faint Infrared Sources with Weak Spectral Features
D. W. Weedman, B. T. Soifer, Lei Hao +15
Spectra have been obtained with the low-resolution modules of the Infrared Spectrograph (IRS) on the Spitzer Space Telescope (Spitzer) for 58 sources having f(24 micron) > 0.75…
The AGN Contribution to the Mid-IR Emission of Luminous Infrared Galaxies
K. Brand, A. Dey, D. Weedman +11
We determine the contribution of AGN to the mid-IR emission of luminous infrared galaxies (LIRGs) at z>0.6 by measuring the mid-IR dust continuum slope of 20,039 mid-IR sources. Th…