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Caught speeding:Clocking the fastest-spinning brown dwarfs（图）
Caught speeding Clocking fastest-spinning brown dwarfs
2021/4/23
Astronomers have discovered the most rapidly rotating brown dwarfs -- three brown dwarfs that each complete a full rotation roughly once every hour. The rate is so extreme that if they rotated any fas...
A Search for High Proper Motion T Dwarfs with Pan-STARRS1 + 2MASS + WISE
Search Proper Motion Dwarfs
2011/10/13
We have searched ~8200 sq. degs for high proper motion (~0.5-2.7"/year) T dwarfs by combining first-epoch data from the Pan-STARRS1 (PS1) 3-Pi Survey, the 2MASS All-Sky Point Source Catalog, and the W...
Warm white dwarfs could reveal 'inelastic' dark matter（图）
Warm white 'inelastic' dark matter
2010/2/23
Direct observations of dark matter – the substance thought to account for 80% of matter in the universe – are sketchy, at best. Some experiments have found what seem like dark-matter signals, while ot...
On the formation of brown dwarfs。
Low Mass Stars and Brown Dwarfs in Open Clusters
Low Mass Stars Brown Dwarfs Open Clusters
2009/6/12
Low Mass Stars and Brown Dwarfs in Open Clusters。