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arXiv · 2002.06980

ProSpect: Generating Spectral Energy Distributions with Complex Star Formation and Metallicity Histories

A. S. G. Robotham·S. Bellstedt·C. del P. Lagos·J. E. Thorne·L. J. Davies·S. P. Driver·M. Bravo
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Abstract

We introduce ProSpect, a generative galaxy spectral energy distribution (SED) package that encapsulates the best practices for SED methodologies in a number of astrophysical domains. ProSpect comes with two popular families of stellar population libraries (BC03 and EMILES), and a large variety of methods to construct star formation and metallicity histories. It models dust through the use of a Charlot & Fall attenuation model, with re-emission using Dale far-infrared templates. It also has the ability to model AGN through the inclusion of a simple AGN and hot torus model. Finally, it makes use of MAPPINGS-III photoionisation tables to produce line emission features. We test the generative and inversion utility of ProSpect through application to the Shark galaxy formation semi-analytic code, and informed by these results produce fits to the final ultraviolet to far-infrared photometric catalogues produces by the Galaxy and Mass Assembly Survey (GAMA). As part of the testing of ProSpect, we also produce a range of simple photometric stellar mass approximations covering a range of filters for both observed frame and rest frame photometry.

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A. S. G. Robotham, S. Bellstedt, C. del P. Lagos, J. E. Thorne, L. J. Davies, S. P. Driver, M. Bravo. 2020-10-23. ProSpect: Generating Spectral Energy Distributions with Complex Star Formation and Metallicity Histories. https://doi.org/10.1093/mnras%2Fstaa1116

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