455 citations · 7.3k across the 95 of their papers we have counts for
12 papers · 2 filters
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…
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…
Mid-IR Galaxy Classification Based on Silicate Obscuration and PAH Equivalent Width
H. W. W. Spoon, J. A. Marshall, J. R. Houck +5
We present a new diagnostic diagram for mid-infrared spectra of infrared galaxies based on the equivalent width of the 6.2 micron PAH emission feature and the strength of the 9.7 m…
Deep Mid-Infrared Silicate Absorption as a Diagnostic of Obscuring Geometry Toward Galactic Nuclei
N. A. Levenson, M. M. Sirocky, L. Hao +4
The silicate cross section peak near 10um produces emission and absorption features in the spectra of dusty galactic nuclei observed with the Spitzer Space Telescope. Especially in…
The Spitzer-IRS spectrum of SMP LMC 11
J. Bernard-Salas, E. Peeters, G. C. Sloan +3
We present the first mid-infrared spectra of SMP LMC 11 in the Large Magellanic Cloud. While this object resembles a planetary nebula in the optical, its infrared properties are mo…
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…
A Spitzer Infrared Spectrograph (IRS) Spectral Sequence of M, L, and T Dwarfs
M. C. Cushing, T. L. Roellig, M. S. Marley +8
We present a low-resolution (R = 90), 5.5-38 micron spectral sequence of a sample of M, L, and T dwarfs obtained with the Infrared Spectrograph (IRS) onboard the Spitzer Space Tele…
Mid-Infrared Spectroscopy of Disks around Classical T Tauri Stars
W. J. Forrest, B. Sargent, E. Furlan +18
We present the first Spitzer Infrared Spectrograph (IRS; The IRS was a collaborative venture between Cornell University and Ball Aerospace Corporation funded by NASA through the Je…
Dust Processing in Disks around T Tauri Stars
B. Sargent, W. J. Forrest, P. D'Alessio +11
The 8-14 micron emission spectra of 12 T Tauri stars in the Taurus/Auriga dark clouds and in the TW Hydrae association obtained with the Infrared Spectrograph (IRS; The IRS is a co…
Spatially Resolved Spitzer Spectroscopy of the Starburst Nucleus in NGC 5253
P. Beirao, B. R. Brandl, D. Devost +3
We present new Spitzer Space Telescope data on the nearby, low-metallicity starburst galaxy NGC 5253, from the Infrared Array Camera IRAC and the Infrared Spectrograph IRS. The mid…