Home > 国立天文台談話会 > 2014.11.3-11.9

2014.11.3-11.9

11月5日(水)16:00~17:00  国立天文台談話会   大セミナー室
Nov 5 Wed   NAOJ Seminar        Large Seminar Room

11月7日(金)16:00~17:00  国立天文台談話会   大セミナー室
Nov 7 Fri   NAOJ Seminar        Large Seminar Room

詳細は以下をご覧下さい。

11月5日(水)

キャンパス
三鷹
セミナー名
国立天文台談話会
臨時・定例の別
臨時
日時
11月5日(水) 16:00-17:00
場所
大セミナー室
講演者
Ralph Pudritz
所属
McMaster University
タイトル
“From Filaments to Stars: A New Paradigm for Star Formation.”
Abstract
Filamentary structure is ubiquitous on multiple scales in molecular clouds. Observations with the Herschel observatory indicate that it is closely connected with star formation. I will discuss some of the significant advances that have occurred in our understanding of the formation, structure, and evolution of filaments and their links with star formation. I will first address some basic ideas of the structure and stability of equilibrium models of filaments including the role of gravity, turbulence, and magnetic fields. Simulations of turbulent clouds emphasize the highly dynamical aspects of filament formation including accretion flows onto and along filaments, the creation of cluster forming regions at filament nodes, and the combination of dynamical fragmentation and filamentary flow that leads to the formation of individual stars and disks. Finally I’ll review some of our recent results on how filamentary structure affects radiative feedback from massive stars and the formation of star clusters. Filaments, it appears, offer some important new insights on how star formation occurs and is controlled.
連絡先
名前:鈴木 竜二

11月7日(金)

キャンパス
三鷹
セミナー名
国立天文台談話会
臨時・定例の別
定例
日時
11月7日(金) 16:00-17:00
場所
大セミナー室
講演者
H. Phillip Stahl
所属
NASA Marshall Space Flight Center
タイトル
“James Webb Space Telescope: The First Light Machine”
Abstract
Scheduled to begin its 10 year mission after 2018, the James Webb Space Telescope (JWST) will search for the first luminous objects of the Universe to help answer fundamental questions about how the Universe came to look like it does today. At 6.5 meters in diameter, JWST will be the world’s largest space telescope. This talk reviews science objectives for JWST and how they drive the JWST architecture, e.g. aperture, wavelength range and operating temperature. Additionally, the talk provides an overview of the JWST primary mirror technology development and fabrication status.
連絡先
名前:鈴木 竜二

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