Expected observations of star formation process: From molecular cloud core to first hydrostatic core

Kohji Tomisaka, Akimasa Kataoka, Masahiro N. Machida, Kengo Tomida, Kazuya Saigo

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

抄録

We performed MHD simulations of the contraction of rotating, magnetized molecular cloud cores. In the molecular cores, B-field and angular momentum (J) vector are not always aligned. When a first hydrostatic core forms, axisymmetric structure appears and average B and J are parallel in small scale. However, in large scale, the configuration is far from this. This means that contraction process is imprinted on the snapshot. We calculated two mock observations of MHD simulations (1) the polarization of dust thermal emission to reveal the magnetic evolution and (2) the line emissions from interstellar molecules to reveal the evolution of density and velocity. Comparing the mock observations with true ones, we can answer several questions: in which case the hourglass-shaped and S-shaped magnetic fields are seen; how the distribution of polarized intensity is understood; how the first hydrostatic core should be observationally identified.

本文言語英語
ホスト出版物のタイトルThe Labyrinth of Star Formation - Conference Dedicated to Prof. Anthony Whitworth
編集者Simon Goodwin, Dimitris Stamatellos, Derek Ward-Thompson
出版社Kluwer Academic Publishers
ページ133-137
ページ数5
ISBN(印刷版)9783319030401
DOI
出版ステータス出版済み - 2014
イベントConference on Labyrinth of Star Formation dedicated to Prof. Anthony Whitworth, 2012 - Crete, ギリシャ
継続期間: 6月 1 2012 → …

出版物シリーズ

名前Astrophysics and Space Science Proceedings
36
ISSN(印刷版)1570-6591
ISSN(電子版)1570-6605

その他

その他Conference on Labyrinth of Star Formation dedicated to Prof. Anthony Whitworth, 2012
国/地域ギリシャ
CityCrete
Period6/1/12 → …

!!!All Science Journal Classification (ASJC) codes

  • 物理学および天文学一般
  • コンピュータ サイエンスの応用
  • 分光学
  • 宇宙惑星科学
  • 核物理学および高エネルギー物理学

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