November 24, 2010 - AstronomyNow
A very cool methane-rich brown dwarf and a dying white dwarf star have been found orbiting each other by astronomers using the United Kingdom Infrared Telescope (UKIRT), the Gemini Observatory and the European Southern Observatory’s Very Large Telescope.
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Wednesday, November 24, 2010
Monday, September 13, 2010
Amateur astronomers are first to detect objects impacting Jupiter
September 9, 2010 - Astronomy.com
Amateur astronomers using backyard telescopes were the first to detect two small objects that burned up in Jupiter's atmosphere June 3 and August 20.
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...Professional astronomers, alerted by e-mail, looked for signs of the impact in images from larger telescopes, including NASA's Hubble Space Telescope, the European Southern Observatory's Very Large Telescope in Chile, and Gemini Observatory telescopes in Hawaii and Chile. Scientists saw no thermal disruptions or typical chemical signatures of debris, which allowed them to put a limit on the size of the object.
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Amateur astronomers using backyard telescopes were the first to detect two small objects that burned up in Jupiter's atmosphere June 3 and August 20.
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...Professional astronomers, alerted by e-mail, looked for signs of the impact in images from larger telescopes, including NASA's Hubble Space Telescope, the European Southern Observatory's Very Large Telescope in Chile, and Gemini Observatory telescopes in Hawaii and Chile. Scientists saw no thermal disruptions or typical chemical signatures of debris, which allowed them to put a limit on the size of the object.
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Jupiter Took a Double Wallop as Amateurs Watched
September 9, 2010 - Space.com
Two fireballs from collisions with Jupiter in June and August provided a great show for the skywatchers who spotted them, packing a punch and suggesting the gas giant could be in for frequent punishment.
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Three days after Wesley and Go detected the fireball, Hueso and his colleagues looked for signs of the impact in high-resolution images from larger telescopes, including NASA's Hubble Space Telescope, Gemini Observatory telescopes in Hawaii and Chile, the Keck telescope in Hawaii, the NASA Infrared Telescope Facility in Hawaii, and the European Southern Observatory's Very Large Telescope in Chile.
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Two fireballs from collisions with Jupiter in June and August provided a great show for the skywatchers who spotted them, packing a punch and suggesting the gas giant could be in for frequent punishment.
...
Three days after Wesley and Go detected the fireball, Hueso and his colleagues looked for signs of the impact in high-resolution images from larger telescopes, including NASA's Hubble Space Telescope, Gemini Observatory telescopes in Hawaii and Chile, the Keck telescope in Hawaii, the NASA Infrared Telescope Facility in Hawaii, and the European Southern Observatory's Very Large Telescope in Chile.
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Monday, August 30, 2010
Galactic Cannibalization Sparks Powerful Radio Galaxies
August 30, 2010 - DiscoveryNews
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Now, imagine a time in the universe where those irregular galaxies were all around, and they fed the most powerful radio-emitting black holes. That is what a group of astronomers, led by Cristina Ramos Almeida, have imaged with one of the largest telescopes on Earth.
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It turns out, that when carefully imaged by the 8.1-meter Gemini telescope in Chile, most of these galaxies show weird shapes such as shells, tidal tails, multiple central nuclei, and other evidence of being the product of merging galaxies...
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Now, imagine a time in the universe where those irregular galaxies were all around, and they fed the most powerful radio-emitting black holes. That is what a group of astronomers, led by Cristina Ramos Almeida, have imaged with one of the largest telescopes on Earth.
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It turns out, that when carefully imaged by the 8.1-meter Gemini telescope in Chile, most of these galaxies show weird shapes such as shells, tidal tails, multiple central nuclei, and other evidence of being the product of merging galaxies...
Thursday, August 5, 2010
Tuesday, August 3, 2010
Astronomers Discover Jupiter-Sized Brown Dwarf
July 30, 2010 - CBS News
... Astronomers have just found such a duo: a star about the mass of our sun with an unusually close brown dwarf companion.
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A paper to appear in Astrophysical Journal Letters details the find, which was made using images from the Near-Infrared Coronagraphic Imager on the Gemini-South telescope in Chile. The researchers predicted the orbit by using two observations, one in April of 2009 and another in May of 2010 and then calculated the brown dwarf's motion using a computer model.
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... Astronomers have just found such a duo: a star about the mass of our sun with an unusually close brown dwarf companion.
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A paper to appear in Astrophysical Journal Letters details the find, which was made using images from the Near-Infrared Coronagraphic Imager on the Gemini-South telescope in Chile. The researchers predicted the orbit by using two observations, one in April of 2009 and another in May of 2010 and then calculated the brown dwarf's motion using a computer model.
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Brown Dwarf Found Orbiting a Young Sun-Like Star
August 2, 2010 - U.S. News & World Report
Astronomers have imaged a very young brown dwarf, or failed star, in a tight orbit around a young nearby sun-like star.
An international team led by University of Hawaii astronomers Beth Biller and Michael Liu with help from University of Arizona astronomer Laird Close and UA graduate students Eric Nielsen, Jared Males and Andy Skemer made the rare find using the Near-Infrared Coronagraphic Imager, or NICI, on the international 8-meter Gemini-South Telescope in Chile.
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Astronomers have imaged a very young brown dwarf, or failed star, in a tight orbit around a young nearby sun-like star.
An international team led by University of Hawaii astronomers Beth Biller and Michael Liu with help from University of Arizona astronomer Laird Close and UA graduate students Eric Nielsen, Jared Males and Andy Skemer made the rare find using the Near-Infrared Coronagraphic Imager, or NICI, on the international 8-meter Gemini-South Telescope in Chile.
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