Paper:	The Detection of Giant Molecular Associations at a Colliding Region by an Interaction of Galaxies
Volume:	499, Revolution in Astronomy with ALMA: The Third Year
Page:	147
Authors:	Kaneko, H.; Kuno, N.; Saito, T. R.
Abstract:	We present the results of ALMA Cycle 1 observations toward interacting galaxies in the early stage of the interaction, VV 219. A map of 12CO(J = 1–0) obtained with the ACA 7-m array represents that there is a large giant molecular association at the colliding region of the progenitor galaxies. Since this structure is resolved out with 12-m array data, it is at least as large as 155 pc which is larger than typical giant molecular associations. The velocity dispersion of this giant molecular association is broader than surrounding region by about 5 km s-1 These fact implies that progenitors are colliding at this region and this collision of gas clouds may trigger star formation.

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