PROSPECT: generating spectral energy distributions with complex star formation and metallicity histories

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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 active galactic nucleus (AGN) through the inclusion of a simple AGN and hot torus model. Finally, it makes use of MAPPINGS-III photoionization 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. 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.

Original languageEnglish
Pages (from-to)905-931
Number of pages27
JournalMonthly Notices of the Royal Astronomical Society
Volume495
Issue number1
DOIs
Publication statusPublished - Jun 2020

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