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| Paper: |
Escape Fraction of Ionizing Photons from High-z Proto-Galaxy |
| Volume: |
399, Panoramic Views of Galaxy Formation and Evolution |
| Page: |
70 |
| Authors: |
Yajima, H.; Umemura, M.; Mori, M.; Nakamoto, T. |
| Abstract: |
We evaluate the escape fraction of ionizing photons (fesc) from a high-z proto-galaxy by three dimensional radiative transfer calculations. We use, as a model galaxy, a result of ultra high resolution hydrodynamic simulation by Mori & Umemura (2006), which shows Lyman alpha emitter (LAE) feature at z ≥ 5.8, and then Lyman break galaxy (LBG) feature at z = 5.0−3.7. LAEs and LBGs can be strong ionizing sources in the high-z universe. Therefore it is significant to estimate the fesc of LAEs and LBGs. By distributing interstellar dust consistently with the star formation history and considering the dust extinction, we estimate the fesc of LAEs and LBGs precisely. As a result, we find that the fesc of LAEs and LBGs are quite small (fesc = 1% − 3%). |
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