Wednesday, June 30, 2010

Astronomers verify directly imaged planet

June 22, 2010 - Astronomy.com
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One of those groups recently re-imaged their discovered system with the same instrument — the Gemini North telescope on Mauna Kea in Hawaii. David Lafrenière of the University of Montréal and Ray Jayawardhana and Marten H. van Kerkwijk of the University of Toronto have confirmed that the object they initially imaged is indeed a companion planet to the young star 1RXS J160929.1–210524...
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Tuesday, June 22, 2010

Astronomers verify directly imaged planet

June 22, 2010 - Astronomy.com
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One of those groups recently re-imaged their discovered system with the same instrument — the Gemini North telescope on Mauna Kea in Hawaii. David Lafrenière of the University of Montréal and Ray Jayawardhana and Marten H. van Kerkwijk of the University of Toronto have confirmed that the object they initially imaged is indeed a companion planet to the young star 1RXS J160929.1–210524. Jayawardhana adds: “We also obtained images/spectra at other wavelengths, which confirm the temperature and mass we derived in 2008.”
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Monday, June 21, 2010

Taking a narrow view of a lopsided galaxy


June 1st, 2010 - Astronomy
The starburst galaxy NGC 1313 is a stellar incubator delivering stars on a scale rarely seen in a single galaxy of its size. Now a striking new Gemini Observatory image reveals the multitudes of glowing gas clouds in this galaxy's arms. These colorful clouds are the telltale sign of star formation in this prolific star factory.
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Enigmatic star could emerge from its gassy cocoon


June 15, 2010 - Nature News
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Researchers from the University of Minnesota in Minneapolis recorded the dip from the eruptive, luminous variable star using data from the Gemini South Telescope in Chile and the Hubble Space Telescope. Their results are detailed in a paper accepted for publication in Astrophysical Journal Letters. http://arxiv.org/PS_cache/arxiv/pdf/1004/1004.3529v3.pdf.
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Friday, May 21, 2010

Cannibalistic galaxy bends light and reveals its monstrous appetite

May 13, 2010 - Astronomy
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The supermassive galaxy is located at the core of the galaxy cluster Abell 3827, which lies about 1.4 billion light-years away. This galaxy and hundreds of its smaller cluster companions are visible in a dramatic new image released by the Gemini Observatory in Hilo, Hawaii.
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Thursday, April 8, 2010

Small companion to brown dwarf challenges simple definition


April 6, 2010 - Astronomy
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Kamen Todorov of Penn State University and co-investigators used the keen eyesight of the Hubble Space Telescope and the Gemini Observatory to directly image the companion of the brown dwarf, which was uncovered in a survey of 32 young brown dwarfs in the Taurus star-forming region. Brown dwarfs are objects that typically are tens of times the mass of Jupiter and are too small to sustain nuclear fusion to shine as stars do.
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Saturday, January 30, 2010

Are heavyweight stars born like our Sun?


January 28, 2010 - Astronomy
Explaining how the most massive stars are born, deep within their stellar nurseries, is one of the most persistent mysteries in modern astronomy. Now, observations at the Gemini Observatory in Hawaii provide convincing new evidence that these stellar heavyweights may be born in much the same manner as lightweights like our Sun.
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