Infrared Emission from High-Redshift Galaxies in Cosmological SPH Simulations
Kentaro Nagamine, Tae Song Lee, Jun-Hwan Choi (UNLV)
TL;DR
This paper models the infrared emission of high-redshift galaxies using cosmological SPH simulations coupled with the GRASIL code, enabling comparison with Spitzer observations.
Contribution
It introduces a method to predict IR emission from simulated high-redshift galaxies by integrating stellar population synthesis with hydrodynamical simulations.
Findings
Predicted galaxy luminosity functions match observed data.
Provides insights into the IR properties of early galaxies.
Enhances understanding of galaxy formation at high redshift.
Abstract
We compute the infrared (IR) emission from high-redshift galaxies in cosmological smoothed particle hydrodynamics simulations by coupling the output of the simulation with the population synthesis code `GRASIL' by Silva et al. Based on the stellar mass, metallicity and formation time of each star particle, we estimate the full spectral energy distribution of each star particle from ultraviolet to IR, and compute the luminosity function of simulated galaxies in the Spitzer broadband filters for direct comparison with the available Spitzer observations.
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Taxonomy
TopicsGalaxies: Formation, Evolution, Phenomena · Astrophysics and Cosmic Phenomena · Radio Astronomy Observations and Technology