| イベント名 |
Ke-Jung Chen 氏 (国立天文台) によるセミナー [宇宙物理] The Cosmic Dawn : Physics of the First Luminous Objects |
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| イベント種類 | セミナー |
| 講演者(講師) | |
| イベント詳細 | 宇宙物理に関するセミナーを開催致します。内容は宇宙の暗黒時代の後、最初に宇宙を明るく輝かせたであろう大質量星の超新星爆発に関する数値シミュレーションを用いた理論研究の紹介です。 ※ 他分野の方の聴講も歓迎致します。 講演者：Ke-Jung Chen 氏 (国立天文台:NAOJ) 概要： One of the paramount problems in modern cosmology is to elucidate how the first generation of luminous objects, stars, supernovae,accreting black holes, and galaxies, shaped the early universe at the end of the cosmic dark ages. According to the modern theory of cosmological structure formation, the hierarchical assembly of dark matter halos provided the gravitational potential wells that allowed gas to form stars and galaxies inside them. Modern large telescopes have pushed the detection of galaxies up to a redshift of z ~ 10. However, models of the first luminous objects still require considerable effort to reach the level of sophistication necessary for meaningful predictions, Due to the complexity of involved physical phenomena, this physical understanding may only come by the proper use of numerical simulations. Therefore, I have used state-of-the-art simulations on some of largest supercomputers to study these objects. In my talk, I will discuss the possible physics behind the formation of these first luminous objects by presenting the results from our simulations. I will also give possible observational signatures of the cosmic dawn that will be the prime targets for the future telescopes such as the James Webb Space Telescope (JWST). |
| 対象 | 教職員向け 在学生向け |
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| キーワード | |
| 開催期間 | 2015年12月1日 14:00 〜 15:00 |
| 会場 |
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| 定員 | なし |
| 申込み方法 | 事前申込み不要 |
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