Chiung-Yin Chang(ASIAA/NTHU);Yu-Hsiu Huang(ASIAA/NTU);Hiroyuki Hirashita(ASIAA)
In this poster we present Milk-Way analogues' SED in far-infrared in the cosmological hydrodynamics simulation IllustrisTNG by post-processing in our dust evolution model. The galaxies are treated as a one-zone object in this research. We successfully produce the SED which is consistent with the observation of the Milky-way within the dispersion of the sample in simulation. The result also revealed that metallicity and dense gas fraction are the most two crucial factors can effect the shape of dust SED corresponding to dust abundance and the efficiency of coagulation and shattering in dust evolution. We also discuss the possible error may cause from neglecting the ionization fraction of PAH and the relation between morphology and galaxies’ SED.