Recent progress in submillimetre surveys by single-dish telescopes allows us to further challenge the consistency between cosmological simulations and observations. In particular, we compare our simulations that include dust formation and destruction with the recent SCUBA-2 surveys (`STUDIES') by putting emphases on basic observational properties of dust emission such as dust temperature, size of infrared (IR)-emitting region, IR luminosity function and IRX--β relation. After confirming that our models reproduce the local galaxy properties, we examine the STUDIES sample at z≈1−4, finding that the simulation reproduces the aforementioned quantities except for the z≳2 IR luminosity function at the massive end (∼1013 L⊙). This means that the current simulation correctly reproduces the overall scaling between the size and luminosity (or star formation rate) of dusty region, but lacks extreme starburst phenomena at z≳2. We also discuss extinction curves and possible AGN contribution.
@article{arxiv.1809.10416,
title = {Comparison of cosmological simulations and deep submillimetre galaxy surveys},
author = {Shohei Aoyama and Hiroyuki Hirashita and Chen-Fatt Lim and Yu-Yen Chang and Wei-Hao Wang and Kentaro Nagamine and Kuan-Chou Hou and Ikkoh Shimizu and Hui-Hsuan Chung and Chien-Hsiu Lee and Xian-Zhong Zheng},
journal= {arXiv preprint arXiv:1809.10416},
year = {2019}
}