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Mid-Infrared Spectral Diagnosis of Submillimeter Galaxies
Alexandra Pope, Ranga-Ram Chary, David M. Alexander +6
We present deep mid-infrared spectroscopy with the Spitzer Space Telescope of 13 submillimeter galaxies (SMGs) in the Great Observatories Origins Deep Survey North (GOODS-N) field.…
Spitzer/IRS Observations of Seyfert 1.8s and 1.9s: A Comparison with Seyfert 1s and Seyfert 2s
R. P. Deo, D. M. Crenshaw, S. B. Kraemer +4
We present Spitzer Space Telescope mid-infrared spectra of 12 Seyfert 1.8 and 1.9 galaxies over the 5-38 um region. We compare the spectral characteristics of this sample to those…
New Constraints on the Lyman Continuum Escape Fraction at z~1.3
Brian Siana, Harry I. Teplitz, James Colbert +8
We examine deep far-ultraviolet (1600 Angstrom) imaging of the Hubble Deep Field-North (HDFN) and the Hubble Ultra Deep Field (HUDF) to search for leaking Lyman continuum radiation…
A Detailed Study of Gas and Star Formation in a Highly Magnified Lyman Break Galaxy at z=3.07
K. E. K. Coppin, A. M. Swinbank, R. Neri +10
We report the detection of CO(3-2) emission from a bright, gravitationally lensed Lyman Break Galaxy, LBGJ213512.73-010143 (the 'Cosmic Eye'), at z=3.07 using the Plateau de Bure I…
HUDF-JD2: Mid-infrared Evidence for a z~2 Luminous Infrared Galaxy
Ranga-Ram Chary, Harry I. Teplitz, Mark E. Dickinson +5
The Hubble Ultra Deep Field source JD2 presented in Mobasher et al. (2005) is an unusual galaxy that is very faint at all wavelengths shortward of 1.1 micron. Photometric redshift…
Dust Masses, PAH Abundances, and Starlight Intensities in the SINGS Galaxy Sample
B. T. Draine, D. A. Dale, G. Bendo +17
Physical dust models are presented for 65 galaxies in the SINGS survey that are strongly detected in the four IRAC bands and three MIPS bands. For each galaxy we estimate (1) the t…