TY - JOUR
T1 - Radiative properties of the first galaxies
T2 - Rapid transition from blue to red
AU - Arata, Shohei
AU - Yajima, Hidenobu
AU - Nagamine, Kentaro
AU - Li, Yuexing
AU - Khochfar, Sadegh
N1 - Publisher Copyright:
© International Astronomical Union 2020.
PY - 2019
Y1 - 2019
N2 - Combining cosmological hydrodynamic simulations and radiative transfer (RT) calculations, we present predictions of multi-wavelength radiative properties of the first galaxies at z ∼ 6-5. We find that intermittent star formation due to supernova (SN) feedback causes the escape fraction of UV photons to fluctuate rapidly, which then produces the observed diversity of SEDs for high-z galaxies. The simulated galaxies make rapid transition between UV-bright and IR-bright phase, and our RT calculations suggest that dust temperatures in the first galaxies are higher than z < 3 galaxies with ∼ 60 K.
AB - Combining cosmological hydrodynamic simulations and radiative transfer (RT) calculations, we present predictions of multi-wavelength radiative properties of the first galaxies at z ∼ 6-5. We find that intermittent star formation due to supernova (SN) feedback causes the escape fraction of UV photons to fluctuate rapidly, which then produces the observed diversity of SEDs for high-z galaxies. The simulated galaxies make rapid transition between UV-bright and IR-bright phase, and our RT calculations suggest that dust temperatures in the first galaxies are higher than z < 3 galaxies with ∼ 60 K.
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U2 - 10.1017/S1743921319003004
DO - 10.1017/S1743921319003004
M3 - Article
AN - SCOPUS:85106766587
SN - 1743-9213
VL - 15
SP - 261
EP - 263
JO - Proceedings of the International Astronomical Union
JF - Proceedings of the International Astronomical Union
IS - S341
ER -