Desika Narayanan
POWDERDAY: Dust Radiative Transfer for Galaxy Simulations
Narayanan, Desika; Turk, Matthew J.; Robitaille, Thomas; Kelly, Ashley J.; McClellan, B. Connor; Sharma, Ray S.; Garg, Prerak; Abruzzo, Matthew; Choi, Ena; Conroy, Charlie; Johnson, Benjamin D.; Kimock, Benjamin; Li, Qi; Lovell, Christopher C.; Lower, Sidney; Privon, George C.; Roberts, Jonathan; Sethuram, Snigdaa; Snyder, Gregory F.; Thompson, Robert; Wise, John H.
Authors
Matthew J. Turk
Thomas Robitaille
Ashley Kelly a.j.kelly@durham.ac.uk
PGR Student Doctor of Philosophy
B. Connor McClellan
Ray S. Sharma
Prerak Garg
Matthew Abruzzo
Ena Choi
Charlie Conroy
Benjamin D. Johnson
Benjamin Kimock
Qi Li
Christopher C. Lovell
Sidney Lower
George C. Privon
Jonathan Roberts
Snigdaa Sethuram
Gregory F. Snyder
Robert Thompson
John H. Wise
Abstract
We present powderday (available at https://github.com/dnarayanan/powderday), a flexible, fast, open-source dust radiative transfer package designed to interface with both idealized and cosmological galaxy formation simulations. powderday builds on fsps stellar population synthesis models, and hyperion dust radiative transfer, and employs yt to interface between different software packages. We include our stellar population synthesis modeling on the fly, allowing significant flexibility in the assumed stellar physics and nebular line emission. The dust content follows either simple observationally motivated prescriptions (i.e., constant dust-to-metals ratios, or dust-to-gas ratios that vary with metallicity), direct modeling from galaxy formation simulations that include dust physics, as well as a novel approach that includes the dust content via learning-based algorithms from the simba cosmological galaxy formation simulation. Active galactic nuclei (AGNs) can additionally be included via a range of prescriptions. The output of these models are broadband (912 Å–1 mm) spectral energy distributions (SEDs), as well as filter-convolved monochromatic images. powderday is designed to eliminate last-mile efforts by researchers that employ different hydrodynamic galaxy formation models and seamlessly interfaces with gizmo, arepo, gasoline, changa, and enzo. We demonstrate the capabilities of the code via three applications: a model for the star formation rate–infrared luminosity relation in galaxies (including the impact of AGNs), the impact of circumstellar dust around AGB stars on the mid-infrared emission from galaxy SEDs, and the impact of galaxy inclination angle on dust attenuation laws.
Citation
Narayanan, D., Turk, M. J., Robitaille, T., Kelly, A. J., McClellan, B. C., Sharma, R. S., …Wise, J. H. (2021). POWDERDAY: Dust Radiative Transfer for Galaxy Simulations. Astrophysical Journal Supplement, 252(1), Article 12. https://doi.org/10.3847/1538-4365/abc487
Journal Article Type | Article |
---|---|
Acceptance Date | Oct 23, 2020 |
Online Publication Date | Jan 13, 2021 |
Publication Date | 2021-01 |
Deposit Date | May 14, 2021 |
Publicly Available Date | Jan 13, 2022 |
Journal | The Astrophysical Journal Supplement Series |
Print ISSN | 0067-0049 |
Electronic ISSN | 1538-4365 |
Publisher | American Astronomical Society |
Peer Reviewed | Peer Reviewed |
Volume | 252 |
Issue | 1 |
Article Number | 12 |
DOI | https://doi.org/10.3847/1538-4365/abc487 |
Publisher URL | https://ui.adsabs.harvard.edu/abs/2021ApJS..252...12N |
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Copyright Statement
© 2021. The American Astronomical Society. All rights reserved.
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