TY - JOUR
T1 - POWDERDAY
T2 - Dust Radiative Transfer for Galaxy Simulations
AU - Narayanan, Desika
AU - Turk, Matthew J.
AU - Robitaille, Thomas
AU - Kelly, Ashley J.
AU - McClellan, B. Connor
AU - Sharma, Ray S.
AU - Garg, Prerak
AU - Abruzzo, Matthew
AU - Choi, Ena
AU - Conroy, Charlie
AU - Johnson, Benjamin D.
AU - Kimock, Benjamin
AU - Li, Qi
AU - Lovell, Christopher C.
AU - Lower, Sidney
AU - Privon, George C.
AU - Roberts, Jonathan
AU - Sethuram, Snigdaa
AU - Snyder, Gregory F.
AU - Thompson, Robert
AU - Wise, John H.
PY - 2021/1/13
Y1 - 2021/1/13
N2 - We present powderday (available at ), 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 A-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.
AB - We present powderday (available at ), 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 A-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.
KW - Galaxy evolution
KW - Galaxy luminosities
KW - Astronomy software
KW - Open source software
KW - Radiative transfer simulations
KW - SPECTRAL ENERGY-DISTRIBUTIONS
KW - STAR-FORMING GALAXIES
KW - GRAIN-SIZE DISTRIBUTION
KW - INITIAL MASS FUNCTION
KW - CO-H2 CONVERSION FACTOR
KW - ACTIVE GALACTIC NUCLEI
KW - POPULATION SYNTHESIS
KW - SUBMILLIMETER GALAXIES
KW - PHYSICAL-PROPERTIES
KW - INFRARED-EMISSION
U2 - 10.3847/1538-4365/abc487
DO - 10.3847/1538-4365/abc487
M3 - Journal article
VL - 252
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0067-0049
IS - 1
M1 - 12
ER -