Sky & Telescope - July 2007 (p.14-15)
...Astronomers made the image using Gemini North's ALTAIR adaptive-optics system and a new sodium-wavelength laser that created an artificial reference star for it in Earth's upper atmosphere.
Friday, June 22, 2007
Catching Orion's Bullets
Sky & Telescope - July 2007 (p.14-15)
...Astronomers made the image using Gemini North's ALTAIR adaptive-optics system and a new sodium-wavelength laser that created an artificial reference star for it in Earth's upper atmosphere.
Friday, June 8, 2007
Astronomers put new discovery to good use
Hawaii Tribune Herald - June 7, 2007
The coolest-known star-like object beyond the solar system is giving astronomers a new look at the differences between massive planets and the smallest brown dwarfs.
This newly discovered object, called ULAS J0034-00 and located in the constellation of Cetus, has a record-setting surface temperature of 600-700 degrees Kelvin, cooler than any known solitary brown dwarf. ...
...
Follow-up spectroscopic observations, critical for determining the brown dwarf's temperature and likely mass were obtained with the Gemini South Telescope in Chile. ...
The coolest-known star-like object beyond the solar system is giving astronomers a new look at the differences between massive planets and the smallest brown dwarfs.
This newly discovered object, called ULAS J0034-00 and located in the constellation of Cetus, has a record-setting surface temperature of 600-700 degrees Kelvin, cooler than any known solitary brown dwarf. ...
...
Follow-up spectroscopic observations, critical for determining the brown dwarf's temperature and likely mass were obtained with the Gemini South Telescope in Chile. ...