August 30, 2010 - DiscoveryNews
...
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.
...
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...
Monday, August 30, 2010
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.
...
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.
...
... Astronomers have just found such a duo: a star about the mass of our sun with an unusually close brown dwarf companion.
...
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.
...
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.
...
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.
...