Quantcast
Last updated on April 21, 2014 at 9:29 EDT

Latest Laird Close Stories

1ada921b12071e09dd0d50fb4fb69ead1
2010-07-30 07:08:45

The discovery is expected to shed light on the early stages of solar system formation. 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,...

7d47e8abd64bfde646916aa7acec03cd1
2006-03-22 14:59:22

Arizona -- Astronomers have discovered a unique "brown dwarf" right in our solar neighborhood. If your city were the galaxy, it would be like finding someone you didn't know about living upstairs in your house, one of the discoverers said. The rare object is only 12.7 light years from Earth, circling a primary star that itself was discovered only recently in the southern hemisphere constellation Pavo (the Peacock). Only one other brown dwarf system has been found closer to Earth, and it's...

7444bcdef7fcd22a2411d6d48570e7fa1
2005-01-26 07:35:00

According to new results from a powerful southern sky telescope, astronomers may have overestimated the number of young "brown dwarfs" and "free floating" extrasolar planets. Brown dwarfs are objects 75 times more massive than Jupiter but not massive enough to burn as stars. If young objects identified as brown dwarfs are twice as massive as has been thought, many actually are low mass stars. Objects recently identified as 'free-floating' planets are in turn likely just low mass brown dwarfs....

2acbc1effb24e54fbbd253ac0ab9fa321
2005-01-19 17:13:41

VLT Finds Young, Very Low Mass Objects Are Twice As Heavy As Predicted ESO -- Thanks to the powerful new high-contrast camera installed at the Very Large Telescope, photos have been obtained of a low-mass companion very close to a star. This has allowed astronomers to measure directly the mass of a young, very low mass object for the first time. The object, more than 100 times fainter than its host star, is still 93 times as massive as Jupiter. And it appears to be almost twice as heavy as...