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Astrodust+PAH Model Output

Harvard Dataverse (Africa Rice Center, Bioversity International, CCAFS, CIAT, IFPRI, IRRI and WorldFish)

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Field Value
 
Title Astrodust+PAH Model Output
 
Identifier https://doi.org/10.7910/DVN/3B6E6S
 
Creator Hensley, Brandon
 
Publisher Harvard Dataverse
 
Description These data files provide model output (extinction, scattering, polarized extinction, emission, polarized emission, and spinning dust emission) integrated over a fiducial size distribution. Currently, only the size distribution from Hensley & Draine 2022, corresponding to a high latitude line of sight in the Milky Way with RV = 3.1, is available.



Please cite Hensley & Draine 2022 if using these data. Please also consider citing the paper where the astrodust dielectric function was derived (Draine & Hensley 2021) and the paper deriving the observational constraints used to calibrate the model (Hensley & Draine 2021).



The fits files are structured as follows, as explained in the "Comment" fields of the relevant HDUs. The size distribution is defined on a grid of 167 effective radius bins. The quantities in the subsequent HDUs, having been integrated over the size distribution, are provided on a grid of 1000 wavelengths. The emission and polarized emission quantities are provided as 1000x91 multi-dimensional arrays corresponding to wavelength (HDU 6) and log10 U (HDU 5). Values for astrodust and PAHs are provided separately for each quantity, and their sum is given as well. All quantities are given per H atom, which can be converted to dust mass using MAd/MH = 0.00642 and MPAH/MH = 0.000659 as can be derived from the size distribution.



HDU 0: Information on file structure

HDU 1: Size Distribution, f_ion, f_align

HDU 2: Extinction

HDU 3: Scattering

HDU 4: Polarized Extinction

HDU 5: log10 U values for emission

HDU 6: Wavelength values for emission

HDU 7: Emission

HDU 8: Polarized Emission

HDU 9: Spinning Dust Emission



A Jupyter notebook illustrating use of these files is available on Github ("model_file_tutorial.ipynb").



Finally, we also provide all data as plaintext files in the zipped directory.
 
Subject Astronomy and Astrophysics
 
Contributor Hensley, Brandon