Press Release

2003 : Scientific Results Summary

A Chain Cluster: Witnessing the Formation of a Rich Galaxy Cluster 7 Billion Years Ago
A Chain Cluster: Witnessing the Formation of a Rich Galaxy Cluster 7 Billion Years Ago
December 22, 2003
A scientific research project called PISCES (PI: T. Kodama (NAOJ)) is currently being undertaken with Subaru Telescope, which is aimed to obtain a panoramic view of cluster formation and the galaxy evolution therein. This image was taken as a part of this project, showing a central region of a rich cluster located 7 billion light years from us.
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Discovery of Widest-separation Quasar Gravitational Lens
Discovery of Widest-separation Quasar Gravitational Lens
December 17, 2003
The group of the international observation project SDSS (Sloan Digital Sky Survey) from Japan, USA, and Germany discovered a quasar gravitational lens whose apparent separation between each image is the largest value so far. This is the first one deflected by a cluster of galaxies. The Subaru's observation data largely contributes to this research.

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Subaru Finds Galaxy Seed in the Early Universe
Subaru Finds Galaxy Seed in the Early Universe
November 25, 2003
Subaru telescope has discovered a minuscule galaxy, less than one hundreth the size of the Milky Way, that may be one of the early building blocks of larger galaxies that populate the Universe today. The galaxy as we see it existed only one billion years after the birth of the Universe, which is now about 13.7 billion years old.
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Opening Up Mid-infrared Astronomy with COMICS
Opening Up Mid-infrared Astronomy with COMICS
October 1, 2003
COMICS (Cooled Mid-Infrared Camera and Spectrograph) is the instrument which observes the mid-infrared, the longest wavelengths among the Subaru instruments.
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COMICS Detects Crystalline Silicates Around a Young Sun-like Star
COMICS Detects Crystalline Silicates Around a Young Sun-like Star
October 1, 2003
Mid-infrared spectra from the Cooled Mid-Infrared Camera and Spectrograph (COMICS) on Subaru telescope show the first direct evidence of crystalline silicates in a proto-planetary disk surrounding a Sun-like star.
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Subaru Observes Mars with IRCS and HDTV camera
Subaru Observes Mars with IRCS and HDTV camera
September 16, 2003
During Mars' close approach to Earth on August 27, 2003, IRCS and NHK's Ultra-High-Sensitivity High-Definition TV camera took a near-infrared image of Mars.
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Gamma-Ray Bursts = Hypernovae ?!
Gamma-Ray Bursts = Hypernovae ?!
June 13, 2003
Observations by astronomers from NAOJ, the University of Tokyo and the University of Texas using the Subaru telescope confirm that the optical counter part to gamma-ray burst GRB 030329 is a hypernova. The FOCAS spectra of the optical after glow of the burst show all the characteristics of a hypernova spectrum. This is the first gamma-ray burst with spectra that show such a clear resemblance to hypernovae.
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Subaru Discovers Many Distant Supernovae
Subaru Discovers Many Distant Supernovae
May 29, 2003
Researchers from the University of Tokyo and the National Astronomical Observatory of Japan discovered 18 distant supernovae using Subaru telescope's prime focus camera, Suprime-Cam. A single exposure alone showed 12 new supernovae. This is the first time so many supernovae have been discovered at the same time.
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The Universe Had Large Scale Structure at a Very Early Age
The Universe Had Large Scale Structure at a Very Early Age
April 8, 2003
Using a wide-field camera on Subaru Telescope, Sadanori Okamura, Kazuhiro Shimasaku, and Masami Ouchi from the University of Tokyo and colleagues from other Japanese research institutions have discovered that the distribution of galaxies has a pattern on the scale of 80 x 180 million light-years as early as 1.2 billion years after the birth of the Universe. (The Universe is approximately 13.7 billion years old.)
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Jupiter and Saturn Have More Moons
Jupiter and Saturn Have More Moons
April 8, 2003
Scott S. Sheppard and David C. Jewitt from the University of Hawaii and their colleagues have discovered eighteen new Jovian satellites since the beginning of 2003 using Subaru Telescope, the Canada-France-Hawaii Telescope, and the University of Hawaii 2.2-meter Telescope atop Mauna Kea. This brings the total number of Jupiter's moons to 58. The team discovered 40 of these since 2000.
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Subaru Telescope Detects the Most Distant Galaxy Yet
Subaru Telescope Detects the Most Distant Galaxy Yet
March 19, 2003
Subaru telescope has found a galaxy 12.8 billion light years away, the most distant galaxy ever observed. This discovery is the first result from the Subaru Deep Field Project, a research project of the Subaru Telescope of the National Astronomical Observatory of Japan which operates the Subaru telescope.
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Isolated Star-Forming Cloud Discovered in Intracluster Space
Isolated Star-Forming Cloud Discovered in Intracluster Space
January 16, 2003
Subaru Telescope has successfully taken a sharp and deep infrared image of the star-forming region, S106. In addition, many objects with masses less than that of an ordinary star have been discovered in this region.
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