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Modeling the Anomalous Microwave Emission with Spinning Nanoparticles: No PAHs Required
Brandon S. Hensley, B. T. Draine
In light of recent observational results indicating an apparent lack of correlation between the Anomalous Microwave Emission (AME) and mid-infrared emission from polycyclic aromati…
The Spatially Resolved [CII] Cooling Line Deficit in Galaxies
J. D. T. Smith, Kevin Croxall, Bruce Draine +17
We present [CII] 158um measurements from over 15,000 resolved regions within 54 nearby galaxies of the KINGFISH program to investigate the so-called [CII] "line cooling deficit" lo…
Graphite Revisited
B. T. Draine
Laboratory measurements are used to constrain the dielectric tensor for graphite, from microwave to X-ray frequencies. The dielectric tensor is strongly anisotropic even at X-ray e…
Radiative Transfer Model of Dust Attenuation Curves in Clumpy, Galactic Environments
Kwang-Il Seon, Bruce T. Draine
The attenuation of starlight by dust in galactic environments is investigated through models of radiative transfer in a spherical, clumpy ISM. Extinction properties for MW, LMC, an…
Quantum Suppression of Alignment in Ultrasmall Grains: Microwave Emission from Spinning Dust will be Negligibly Polarized
B. T. Draine, Brandon S. Hensley
The quantization of energy levels in very nanoparticles suppresses dissipative processes that convert grain rotational kinetic energy into heat. For grains small enough to have GHz…
The Ionized Gas in Nearby Galaxies as Traced by the [NII] 122 and 205 μm Transitions
R. Herrera-Camus, A. Bolatto, J. D. Smith +20
The [NII] 122 and 205 μm transitions are powerful tracers of the ionized gas in the interstellar medium. By combining data from 21 galaxies selected from the Herschel KINGFISH and…