9 papers · 1 filter
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…
A point source survey of M31 with the Spitzer Space Telescope
Jeremy Mould, Pauline Barmby, Karl Gordon +5
We explore the stellar population of M31 in a Spitzer Space Telescope survey utilizing IRAC and MIPS observations. Red supergiants are the brightest objects seen in the infrared; t…
The Behavior of the Aromatic Features in M101 HII Regions: Evidence for Dust Processing
Karl D. Gordon, Charles W. Engelbracht, George H. Rieke +3
The aromatic features in M101 were studied spectroscopically and photometrically using observations from all three instruments on the Spitzer Space Telescope. The global SED of M10…
Metallicity Effects on Dust Properties in Starbursting Galaxies
C. W. Engelbracht, G. H. Rieke, K. D. Gordon +5
We present infrared observations of 66 starburst galaxies over a wide range of oxygen abundances, to measure how metallicity affects their dust properties. The data include imaging…
Spitzer observations of a 24 micron shadow: Bok Globule CB190
Amelia M. Stutz, John H. Bieging, George H. Rieke +8
We present Spitzer observations of the dark globule CB190 (L771). We observe a roughly circular 24 micron shadow with a 70 arcsec radius. The extinction profile of this shadow matc…
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…