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A high abundance of massive galaxies 3-6 billion years after the Big Bang

July 7, 2004

A Gemini team led by Karl Galzebrook of Johns Hopkins University has just released some spectacular results obtained from the Gemini Deep Deep Survey (GDDS) in the British journal Nature.

Seeking vendor to provide advanced CCDs for high-speed adaptive optic wavefront sensing application

The Association of Universities for Research in Astronomy, Inc. (AURA), acting as the operator of the Gemini Observatory, is seeking a vendor to provide advanced CCDs for high-speed adaptive optic wavefront sensing applications.

Gemini, Subaru & Keck Discover large-scale funneling of matter onto a massive distant galaxy cluster

Large galaxy clusters represent the largest gravitationally stable assemblies of matter in the universe. Massive clusters of galaxies consist of thousands of galaxies and vast quantities of extremely hot intergalactic gas all held together by gravity. It is believed that clusters of galaxies grow in size and in number through time and we see many more galaxy clusters in the nearby (recent) universe than in the distant past. The assembly and growth of massive clusters involve complex interactions between dark matter, diffuse gas, and thousands of

The Gemini Deep Deep Survey Opens a New Window Into the Distant Universe of Galaxy Assembly

May 18, 2004

Using a sophisticated technique called Nod & Shuffle, combined with the Gemini Multi-Object Spectrograph, ultra-deep spectra of several hundred distant, elusive galaxies were captured. These observations by the Frederick C. Gillett Gemini North Telescope help to paint a new picture of the nature and evolution of galaxies some 7 - 10 billion years ago.

Waltzing Irregular Satellites Around Jupiter and Saturn

Gemini North Near Infrared Imager (NIRI) observations have confirmed that many of the "irregular" satellites around Jupiter and Saturn share a common ancestry.

Gemini-South's Near-Infrared Spectrograph Gets 3-D vision

The new GNIRS Integral Field Unit (IFU) arrived on Cerro Pachón (Gemini South) in February in a deceptively small package. The new IFU is about the size of a large paperback, but contains some 66 miniature optical elements. Designed and built by the University of Durham (UK), the IFU fits in the GNIRS slit slide mechanism, providing an alternative input "aperture" to the variety of traditional slit masks that feed the long-slit and cross-dispersed configurations of the instrument. With the IFU in the optical path, a 2-dimensional input field of roughly 3” x

Orphan HII Regions Near Stephan's Quintet

A team of Brazilian and French astronomers led by C. Mendes de Oliveira has discovered four surprisingly metal-rich HII regions and associated clusters of hot young stars in an otherwise empty region of intergalactic space near the galaxy group called Stephan's Quintet.  This collection of interacting galaxies (which lies about 280 million light-years away from us) is spreading clouds of gas and newborn stars across space. The newly discovered HII regions lie more than 80,000 light-years away from the center of action. Their relative youth and lack of apparent