Dust Compendium Datasets - galacticusorg/galacticus GitHub Wiki

Datasets containing dust extinctions for simple galactic geometries, computed using the methods described by Benson (2018) and in a format compatible with the DustCompendium class in the analysis-python tools are available for download. The individual datasets are linked to and described below.

Any questions about these datasets should be directed to Andrew Benson.

Dust grain properties are taken from Draine (2003) for three different values of R_V.

Galactic disks follow exponential profiles in the radial direction, and sech2 distributions in the vertical direction. The vertical scale height is set to a multiple, h_d, of the stellar disk scale length, and its value is encoded in each file name. Spheroids follow spherical Hernquist (1990) profiles.

Dust is distributed in the disk, and follows exponential profiles in both radial and vertical directions. The vertical scale height is set to a multiple, h_z, of the stellar disk scale length, and its value is encoded in each file name.

• R_V=3.1
• R_V=4.0
• R_V=5.5

Dust grain properties are taken from Kim, Martin, and Hendry (1994), specifically their model with with R_V=3.1 and either a full scattering calculation or Henyey-Greenstein scattering.

Galactic disks follow exponential profiles in the radial direction, and sech2 distributions in the vertical direction. The vertical scale height is set to a multiple, h_d, of the stellar disk scale length, and its value is encoded in each file name. Spheroids follow spherical Hernquist (1990) profiles.

Dust is distributed in the disk, and follows exponential profiles in both radial and vertical directions. The vertical scale height is set to a multiple, h_z, of the stellar disk scale length, and its value is encoded in each file name.

• R_V=3.1 and full scattering calculation
• R_V=3.1 and Henyey-Greenstein scattering

These models are intended to mimic the mimic the geometries used by Grasil.

Dust grain properties are taken from Draine (2003) - specifically their model with either R_V=3.1 or R_V=5.5 as encoded in the file name with prefix dustD03.

Galactic disks follow exponential profiles in both radial and vertical directions, with the vertical scale height equal to 0.1 or 0.5 times the radial scale length as encoded in the file name with prefix hzStars. Note that spheroid radii in this work are listed as the scale radius, r_s, while Ferrara et al. (1999) listed the corresponding effective radius, r_e=r_s/1.16.

Dust is distributed in the disk, and follows exponential profiles in both radial and vertical directions. The vertical scale height is set to a multiple, h_z, of the stellar disk scale height. The value of h_z is encoded in each file name with prefix hzDust.

• All files can be found here.

These models are intended to closely match the models run by Ferrara et al. (1999) - they use the same dust grain properties and galactic geometry.

• "Original" - models tabulated at the same inclinations, optical depths, wavelengths, and morphologies as in Ferrara et al. (1999).
• "HiRes" - models tabulated with a much higher resolution grid of inclinations, optical depths, wavelengths, and morphologies than in Ferrara et al. (1999), but with the same dust properties and galactic mass distributions.