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Horizon-AGN virtual observatory – 2: Template-free estimates of galaxy properties from colours
[article]
2020
arXiv
accepted
Using the Horizon-AGN hydrodynamical simulation and self-organising maps (SOMs), we show how to compress the complex data structure of a cosmological simulation into a 2-d grid which is much easier to analyse. We first verify the tight correlation between the observed 0.3-5μm broad-band colours of Horizon-AGN galaxies and their high-resolution spectra. The correlation is found to extend to physical properties such as redshift, stellar mass, and star formation rate (SFR). This direct mapping
arXiv:1905.13233v2
fatcat:gk3w6k35p5gd3nzlko3tlf7yme