Scientific American - April 28, 2009
An international team of astronomers last week detected the most distant gamma-ray burst ever recorded, light that was emitted when the universe was less than 5 percent of its present age.
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Infrared afterglow of GRB 090423 (circled) in a false-color image from the Gemini North Telescope in Hawaii: Gemini Observatory/NSF/AURA, D. Fox and A. Cucchiara (Penn State University) and E. Berger (Harvard University)
Tuesday, April 28, 2009
Wednesday, April 22, 2009
Coolest Brown Dwarf Spotted
April 20, 2009 - Discovery News
The coolest star-like object ever found outside the solar system has been spotted around 40 light-years away from Earth.
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The team used the United Kingdom Infrared Telescope and Gemini-North Telescope on Mauna Kea, Hawaii.
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The coolest star-like object ever found outside the solar system has been spotted around 40 light-years away from Earth.
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The team used the United Kingdom Infrared Telescope and Gemini-North Telescope on Mauna Kea, Hawaii.
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Astronomers Discover Local Star's Cool Companion
April 20, 2009 - Science Daily
An international team, led by astronomers at the University of Hertfordshire in the UK, have discovered one of the coolest sub-stellar bodies ever found outside our own solar system, orbiting the red dwarf star Wolf 940, some 40 light years from Earth. Dr Ben Burningham of the University of Hertfordshire will present this discovery on Monday 20th April at the European Week of Astronomy and Space Science conference.
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Its temperature was then confirmed using data from the Gemini-North telescope on Mauna Kea. The team's findings will soon be published in the Monthly Notices of the Royal Astronomical Society.
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An international team, led by astronomers at the University of Hertfordshire in the UK, have discovered one of the coolest sub-stellar bodies ever found outside our own solar system, orbiting the red dwarf star Wolf 940, some 40 light years from Earth. Dr Ben Burningham of the University of Hertfordshire will present this discovery on Monday 20th April at the European Week of Astronomy and Space Science conference.
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Its temperature was then confirmed using data from the Gemini-North telescope on Mauna Kea. The team's findings will soon be published in the Monthly Notices of the Royal Astronomical Society.
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Wednesday, April 15, 2009
“From Galileo to Gemini” theme of upcoming Mauna Kea lecture
Apr. 13, 2009 - Big Island Video News
Dr. Doug Simons, director of the Frederick C. Gillett Gemini North telescope on Mauna Kea, will present the “From Galileo to Gemini” talk on Thursday, April 16, at the W. M. Keck Observatory’s Hualalai Learning Theater in Waimea, and Saturday, April 18, at Imiloa Astronomy Center’s planetarium in Hilo.
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(with video)
IYA's 24-hour Scope-a-thon
Apr. 2, 2009 - Sky & Telescope
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This unprecedented scope-a-thon kicks with a live feed from the Gemini North observatory in Hawaii on Friday morning, April 3rd, at 9:00 Universal Time (5:00 a.m. EDT). Then every 20 minutes the scene switches to a different facility. You'll be impressed with all the big-name observatories on and off our planet that have signed up to participate, among them Keck Observatory (10:00 UT), Hubble Space Telescope (17:20 UT), and ESO's Very Large Telescope in Chile (April 4th, 2:20 UT).
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This unprecedented scope-a-thon kicks with a live feed from the Gemini North observatory in Hawaii on Friday morning, April 3rd, at 9:00 Universal Time (5:00 a.m. EDT). Then every 20 minutes the scene switches to a different facility. You'll be impressed with all the big-name observatories on and off our planet that have signed up to participate, among them Keck Observatory (10:00 UT), Hubble Space Telescope (17:20 UT), and ESO's Very Large Telescope in Chile (April 4th, 2:20 UT).
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Gallery: The Top 10 Telescopes of All Time
Apr. 10, 2009 - Popular Science
Image 1 of 10 is Gemini Observatory...
Image 1 of 10 is Gemini Observatory...
Wednesday, March 25, 2009
Two Dying Red Supergiant Stars Produced Supernovae
March 20, 2009 - ScienceDaily
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Using images from the Hubble Space Telescope and the Gemini Observatory, Justyn R. Maund, astrophysicist at the Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen and astrophysicist Stephen J. Smartt, Queens University Belfast, have observed two stars that exploded as supernovae. By analysing archival images of the same section of the sky from long before the explosions, the researchers could see which stars might have gone supernova. But picking out individual stars in the distant universe is difficult, and pinpointing exactly which star it was that exploded is a huge challenge.
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Using images from the Hubble Space Telescope and the Gemini Observatory, Justyn R. Maund, astrophysicist at the Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen and astrophysicist Stephen J. Smartt, Queens University Belfast, have observed two stars that exploded as supernovae. By analysing archival images of the same section of the sky from long before the explosions, the researchers could see which stars might have gone supernova. But picking out individual stars in the distant universe is difficult, and pinpointing exactly which star it was that exploded is a huge challenge.
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