Molecular gas in and around interacting galaxies

Molecular gas and massive star formation are intimately interlocked. Dense gas is a prerequisite for star formation, and dust grains - released by stellar mass loss -act as a catalyst for the fomation of molecules in the interstellar medium. How does molecular gas though behaves during interacton? Does it always condense in the center of galaxies or can be found in the outskirts of tidal tails? Vassilis Charmandaris and his colleagues are examining some of these issues.

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