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Escape fraction of ionizing photons from high-z LAEs and LBGs

1:University of Tsukuba. 2:Tokyo institute of technology. Escape fraction. Dust-free case. Dust-included case. log 10 XHI. -8. -4. 0. Escape fraction of ionizing photons from high-z LAEs and LBGs. ★ H. Yajima 1 , M. Umemura 1 , M. Mori 1 , T. Nakamoto 2. Model galaxy(Mori&Umemura 2006).

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Escape fraction of ionizing photons from high-z LAEs and LBGs

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  1. 1:University of Tsukuba 2:Tokyo institute of technology Escape fraction Dust-free case Dust-included case log10XHI -8 -4 0 Escape fraction of ionizing photons from high-z LAEs and LBGs ★H. Yajima1, M. Umemura1, M. Mori1, T. Nakamoto2 Model galaxy(Mori&Umemura 2006) ●High-z LAEs and LBGs can be major ionizing sources in the cosmic reionization era. ●Solving three dimensional radiation transfer (RT) equation, we estimate the escape fraction of ionizing photons from LAEs and LBGs. ●Interstellar dust absorbs the ionizing photons effectively and decline the escape fraction. ●However,High-z LAEs and LBGs have a large escape fraction (~15%-45%). Star gas Z/Zsun RT cal. Result: Ionization structure LAE phase z=7.0 z=5.8 LBG phase LAEs z=3.7 z=5.0 LBGs LAE phase LBG phase

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