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7 papers
The Dust-to-Gas Ratio in the Small Magellanic Cloud Tail
K. D. Gordon, C. Bot, E. Muller +21
The Tail region of the Small Magellanic Cloud (SMC) was imaged using the MIPS instrument on the Spitzer Space Telescope as part of the SAGE-SMC Spitzer Legacy. Diffuse infrared emi…
PAH emission from Herbig AeBe stars
Luke D. Keller, G. C. Sloan, W. J. Forrest +10
We present spectra of a sample of Herbig Ae and Be (HAeBe) stars obtained with the Infrared Spectrograph on the Spitzer Space Telescope. All but one of the Herbig stars show emissi…
Infrared Emission from Interstellar Dust. IV. The Silicate-Graphite-PAH Model in the Post-Spitzer Era
B. T. Draine, Aigen Li
Infrared (IR) emission spectra are calculated for dust composed of mixtures of amorphous silicate and graphitic grains, including varying amounts of polycyclic aromatic hydrocarbon…
Warm Dust and Spatially Variable PAH Emission in the Dwarf Starburst Galaxy NGC 1705
John M. Cannon, John-David T. Smith, Fabian Walter +22
We present Spitzer observations of the dwarf starburst galaxy NGC 1705 obtained as part of SINGS. The galaxy morphology is very different shortward and longward of ~5 microns: shor…
Modeling the Infrared Emission from the Epsilon Eridani Disk
Aigen Li, J. I. Lunine, G. J. Bendo
We model the infrared (IR) emission from the ring-like dust disk around the main-sequence (MS) star Epsilon Eridani, a young analog to our solar system, in terms of a porous dust m…
What Can We Learn from the Infrared Spectral Energy Distributions of Dust Disks?
Aigen Li, J. I. Lunine
The spectral energy distributions (SEDs) of dust disks are widely used to infer dust properties (compositions and sizes) and disk structures (dust spatial distributions) which migh…