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ALMA Observations of a High-density Core in Taurus: Dynamical Gas Interaction at the Possible Site of a Multiple Star Formation

Part of: IAU Issue 315 - From Interstellar Clouds...

Published online by Cambridge University Press:  12 September 2016

Kazuki Tokuda ,
Toshikazu Onishi ,
Kazuya Saigo ,
Akiko Kawamura ,
Yasuo Fukui ,
Tomoaki Matsumoto ,
Shu-ichiro Inutsuka ,
Masahiro N. Machida ,
Kengo Tomida  and
Kengo Tachihara
Kazuki Tokuda
Affiliation:
Department of Physical Science, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan email: s_tokuda@p.s.osakafu-u.ac.jp
Toshikazu Onishi
Affiliation:
Department of Physical Science, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan email: s_tokuda@p.s.osakafu-u.ac.jp
Kazuya Saigo
Affiliation:
Department of Physical Science, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan email: s_tokuda@p.s.osakafu-u.ac.jp
Akiko Kawamura
Affiliation:
National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588, Japan
Yasuo Fukui
Affiliation:
Department of Physics, Nagoya University, Chikusa-ku, Nagoya 464-8602, Japan
Tomoaki Matsumoto
Affiliation:
Faculty of Humanity and Environment, Hosei University, Fujimi, Chiyoda-ku, Tokyo 102-8160, Japan
Shu-ichiro Inutsuka
Affiliation:
Department of Physics, Nagoya University, Chikusa-ku, Nagoya 464-8602, Japan
Masahiro N. Machida
Affiliation:
Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 812-8581, Japan
Kengo Tomida
Affiliation:
Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544, USA Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
Kengo Tachihara
Affiliation:
Department of Physics, Nagoya University, Chikusa-ku, Nagoya 464-8602, Japan
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Abstract

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It is crucially important to observe dense cores in order to investigate the initial condition of star formation since protostars are formed via dynamical collapse of dense cores, inhering the physical properties from their natal dense cores. Here we present the results of ALMA Cycle 0 and Cycle 1 observations of dust continuum emission and molecular rotational lines toward a dense core, MC27 (aka L1521F), which is considered to be very close to the first protostellar core phase. We revealed the spatial/velocity structures of the core are very complex and and suggest that the star formation is highly dynamical.

Keywords

ISM: cloudsISM: kinematics and dynamicsISM: moleculesstars: formation
Type
Poster Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S315: From Interstellar Clouds to Star-Forming Galaxies: Universal Processes? , August 2015 , E74
Copyright
Copyright © International Astronomical Union 2016 

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