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研究成果藝廊 > 理論天文物理理論天文物理
(Theory)
研究成果藝廊
理論天文物理理論天文物理 (Theory)
| Dust enrichment in a cosmic volume |
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圖片來源: Aoyama et al.
Cosmological simulation with dust formation and destruction
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| We calculate dust production and evolution with cosmological simulations. In our simulation, we include dust production by stars, destruction by supernovae or hot gas, and growth in molecular clouds, and dust-dust interaction (shattering and coagulation). We separately calculate the abundances of large (> 0.03 micron) and small grains (< 0.03 micron) to obtain the information on the grain size distribution. In the figure below, we show the time evolution (at z = 6.1, 2.4, 1.0, and 0.0) of the projected density field of gas, small and large grains. The simulation box size is 50 h-1 Mpc (Aoyama et al. 2018). Based on this result, we are now calculating the statistical properties of dust emission at various redshifts. |
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