Press Releases
Nov. 22, 2011

Galaxy Collisions

— Star Cluster Formation and Black Hole Growth —
  • Junko Ueda (Department of Astronomy, Graduate School of Science, University of Tokyo)
  • Daisuke Iono (Nobeyama Radio Observatory, NAOJ)
  • Ryobei Kawabe (Nobeyama Radio Observatory, NAOJ)


An international team led by Junko Ueda (the University of Tokyo), in close cooperation with Daisuke Iono and Ryohei Kawabe (NAOJ) revealed detailed spacial distribution of warm and dense giant molecular clouds across the nearest colliding galaxy pair from the Earth, the "Antennae galaxies", at an angular resolution that is more than 10 times higher than previous studies. The data obtained by the Submillimeter Array (SMA) in Hawaii revealed that the bulk of the giant molecular clouds are the exact fuel for future star formation and black hole growth. "What was only seen as a blurred picture before has now become increasingly sharp, thanks to the high resolution power offered by the SMA" says Ueda who is a graduate student at the University of Tokyo and the principal investigator of the team.

For further information, please visit the Nobeyama Radio Observatory website.