A refined model for spinning dust radiation

By Yacine Ali-Haïmoud, Christopher M. Hirata, Clive Dickinson. 2008

143 citations recorded by the source corpus.

We present a comprehensive treatment of the spectrum of electric dipole emission from spinning dust grains, updating the commonly used model of Draine & Lazarian. Grain angular velocity distributions are computed using the Fokker–Planck equation; we revisit the drift and diffusion coefficients for the major torques on the grain, including collisions, grain-plasma interactions and infrared emission. We use updated grain optical properties and size distributions. The theoretical formalism is implemented in the companion code, spdust, which is publicly available. The effect of some environmental and grain parameters on the emissivity is shown and analysed.

Subfields: Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics, Geophysics

View Paper: https://www.semanticscholar.org/paper/ffb5c0650e874558cc39bf565423d61828d47dfd

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In Astronomy and Astrophysics

1. A. Banday
2. H. Eriksen
3. F. Hansen
4. P. Lilje
5. K. G'orski
6. M. Arnaud
7. Jacques Delabrouille
8. E. Pointecouteau

In Atomic and Molecular Physics, and Optics

1. M. Miville-Deschênes
2. P. Martin
3. Torsten A. Ensslin
4. E. Falgarone
5. G. Lagache

In Geophysics

1. M. Hobson

Citations in the corpus

• Planck intermediate results. XXII. Frequency dependence of thermal emission from Galactic dust in intensity and polarization (2014, methodology): “The AME model ( M a ) normalized at 23 GHz (in K RJ units) is given by: log M a = − m 60 log ν p log( ν p / 60 GHz) This model is a good fit to spectra of dipole emission from small spinning dust particles computed with the SPDUST code (Ali-Haïmoud et al. 2009; Silsbee et al. 2011).”