Modelling infrared galaxy evolution using a phenomenological approach

摘要: To characterize the cosmological evolution of sources contributing to infrared extragalactic background, we have developed a phenomenological model that constrains in simple way galaxy luminosity function with redshift, and fits all existing source counts redshift distributions, cosmic background intensity fluctuation observations, from mid-infrared submillimetre range. The is based on template spectra starburst normal galaxies, local function. Although can be modelled very different functions as long radiation production right one, number anisotropies unresolved imply must change dramatically rapid high-luminosity (L > 3 × 10 11 L� ) z = 0t oz 1, which then stay rather constant up 5. derived may linked bimodal star formation process: one associated quiescent passive phase evolution, phase, triggered by merging interactions. latter dominates output energy Universe. intended convenient tool plan further illustrated through predictions for Herschel, Planck ALMA observations. Our given wavelengths, together some useful routines, are available general use.