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Data release of UV to submillimeter broadband fluxes for simulated galaxies from the EAGLE Project.

Camps, Peter and Trc̆ka, Ana and Trayford, James and Baes, Maarten and Theuns, Tom and Crain, Robert A. and McAlpine, Stuart and Schaller, Matthieu and Schaye, Joop (2018) 'Data release of UV to submillimeter broadband fluxes for simulated galaxies from the EAGLE Project.', Astrophysical journal supplement series., 234 (2). p. 20.


We present dust-attenuated and dust emission fluxes for sufficiently resolved galaxies in the EAGLE suite of cosmological hydrodynamical simulations, calculated with the SKIRT radiative transfer code. The post-processing procedure includes specific components for star formation regions, stellar sources, and diffuse dust and takes into account stochastic heating of dust grains to obtain realistic broadband fluxes in the wavelength range from ultraviolet to submillimeter. The mock survey includes nearly half a million simulated galaxies with stellar masses above ${10}^{8.5}\,{M}_{\odot }$ across six EAGLE models. About two-thirds of these galaxies, residing in 23 redshift bins up to z = 6, have a sufficiently resolved metallic gas distribution to derive meaningful dust attenuation and emission, with the important caveat that the same dust properties were used at all redshifts. These newly released data complement the already publicly available information about the EAGLE galaxies, which includes intrinsic properties derived by aggregating the properties of the smoothed particles representing matter in the simulation. We further provide an open-source framework of Python procedures for post-processing simulated galaxies with the radiative transfer code SKIRT. The framework allows any third party to calculate synthetic images, spectral energy distributions, and broadband fluxes for EAGLE galaxies, taking into account the effects of dust attenuation and emission.

Item Type:Article
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Publisher statement:© 2018. The American Astronomical Society. All rights reserved.
Date accepted:14 December 2017
Date deposited:16 February 2018
Date of first online publication:25 January 2018
Date first made open access:16 February 2018

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