Saturn's Rings Viewed in the Mid-infrared Show Bright Cassini Division
February 23, 2017
A team of researchers has succeeded in measuring the brightnesses and temperatures of Saturn's rings using the mid-infrared images taken by the Subaru Telescope in 2008. The images are the highest resolution ground-based views ever made. They reveal that, at that time, the Cassini Division and the C ring were brighter than the other rings in the mid-infrared light and that the brightness contrast appeared to be the inverse of that seen in the visible light...
Tracing the Cosmic Web with Star-forming Galaxies in the Distant Universe
January 30, 2017
By using the Subaru Telescope, an international team led by Hiroshima University researcher has revealed a picture of the increasing fraction of massive star-forming galaxies in the distant universe. Massive star-forming galaxies about 5 billion years ago trace large-scale structure in the universe. About 3 billion years ago, massive star-forming galaxies are no longer apparent...