Record Details

Astrodust+PAH Cross Sections

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

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Field Value
 
Title Astrodust+PAH Cross Sections
 
Identifier https://doi.org/10.7910/DVN/PEXRD0
 
Creator Hensley, Brandon
 
Publisher Harvard Dataverse
 
Description Absorption, scattering and extinction cross sections for astrodust, ionized PAHs/graphite ("cion"), and neutral PAHs/graphite ("cneu"). Astrodust file includes polarization cross sections. The astrodust data correspond to grains that are 1.4:1 oblate spheroids with porosity = 0.2



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 astrodust files are organized as follows:

HDU 0: Information on file structure

HDU 1: Effective radius values (167)

HDU 2: Wavelength values (1000)

HDU 3: Log10 U values (91)

HDU 4: Cabs (167x1000, cm2)

HDU 5: Csca (167x1000, cm2)

HDU 6: Cext (167x1000, cm2)

HDU 7: Cabs, pol (167x1000, cm2)

HDU 8: Cext, pol (167x1000, cm2)

HDU 9: ∫ dT dP/dt Cabs ν Bν(T) (167x91x1000, erg/s/sr)

HDU 10: ∫ dT dP/dt Cabs, pol ν Bν(T) (167x91x1000, erg/s/sr)



The files for PAHs/graphite ("c"arbonaceous grains) are organized as follows:

HDU 0: Information on file structure

HDU 1: Effective radius values (167)

HDU 2: Wavelength values (1000)

HDU 3: Log10 U values (91)

HDU 4: Cabs (167x1000, cm2)

HDU 5: Csca (167x1000, cm2)

HDU 6: Cext (167x1000, cm2)

HDU 7: ∫ dT dP/dt Cabs ν Bν(T) (167x91x1000, erg/s/sr)



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



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