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SiO (J=2-1) Observations of W49A with NMA: Evidence of Infall Motion toward Massive Core

Published online by Cambridge University Press:  12 April 2016

Ryosuke Miyawaki ,
Masahiko Hayashi  and
Tetsuo Hasegawa
Ryosuke Miyawaki
Affiliation:
Department of Science Education, Fukuoka University of Education, Munakata, Fukuoka, 811-41, Japan
Masahiko Hayashi
Affiliation:
Department of Astronomy, Faculty of Science, The University of Tokyo, Bunkyo-ku, Tokyo, 113, Japan
Tetsuo Hasegawa
Affiliation:
Institute of Astronomy, Faculty of Science, The University of Tokyo, Mitaka, Tokyo, 181, Japan

Abstract

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We observed W49A with NMA. We found rotational infall motion toward massive core. The rotational velocity and the infall velocity are 2±1 km s−1 /pc and 5±2 km s−1, respectively.

Type
3. Astronomical Results and Prospects
Information
International Astronomical Union Colloquium , Volume 140: Astronomy with Millimeter and Submillimeter Wave Interferometry , 1994 , pp. 251 - 252
Copyright
Copyright © Astronomical Society of the Pacific 1994

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