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8 papers · 2 filters
Modeling Dust and Starlight in Galaxies Observed by Spitzer and Herschel: The KINGFISH Sample
G. Aniano, B. T. Draine, L. K. Hunt +30
Dust and starlight are modeled for the KINGFISH project galaxies. With data from 3.6 micron to 500 micron, models are strongly constrained. For each pixel in each galaxy we estimat…
Evidence of dust grain evolution from extinction mapping in the IC 63 photodissociation region
Dries Van De Putte, Karl D. Gordon, Julia Roman-Duval +5
Photodissociation regions (PDRs) are parts of the ISM consisting of predominantly neutral gas, located at the interface between H II regions and molecular clouds. The physical cond…
An Analysis of the Shapes of Interstellar Extinction Curves. VII. Milky Way Spectrophotometric Optical-through-Ultraviolet Extinction and Its R-Dependence
Edward L. Fitzpatrick, Derck Massa, Karl D. Gordon +2
We produce a set of 72 NIR through UV extinction curves by combining new HST/STIS optical spectrophotometry with existing IUE spectrophotometry (yielding gapless coverage from 1150…
The Life Cycle of Dust
Sarah Sadavoy, Mikako Matsuura, Lee Armus +24
Dust offers a unique probe of the interstellar medium (ISM) across multiple size, density, and temperature scales. Dust is detected in outflows of evolved stars, star-forming molec…
The Polycyclic Aromatic Hydrocarbon Mass Fraction on a 10 pc scale in the Magellanic Clouds
Jeremy Chastenet, Karin Sandstrom, I-Da Chiang +8
We present maps of the dust properties in the Small and Large Magellanic Clouds (SMC, LMC) from fitting Spitzer and Herschel observations with the \citet{DL07} dust model. We deriv…
Interstellar Dust Grains: Ultraviolet and Mid-IR Extinction Curves
Karl D. Gordon, Karl Misselt, Yvonne Pendleton +7
Interstellar dust plays a central role in shaping the detailed structure of the interstellar medium, thus strongly influencing star formation and galaxy evolution. Dust extinction…
Astro2020: Unleashing the Potential of Dust Emission as a Window onto Galaxy Evolution
Christopher Clark, Julua Roman-Duval, Sarah Sadavoy +15
We present the severe, systematic uncertainties currently facing our understanding of dust emission, which stymie our ability to truly exploit dust as a tool for studying galaxy ev…
METAL: The Metal Evolution, Transport, and Abundance in the Large Magellanic Cloud Hubble program. I. Overview and Initial Results
Julia Roman-Duval, Edward B. Jenkins, Benjamin Williams +8
Metal Evolution, Transport, and Abundance in the LMC (METAL) is a large Cycle 24 program on the Hubble Space Telescope aimed at measuring dust extinction properties and interstella…