Tag: brown dwarf
Astronomers Determine Brown Dwarf Age Using Tiny Stellar Pulsations
Results Test Brown Dwarf Theory challenging astrophysicists Maunakea, Hawaiʻi – Astronomers using W. M. Keck Observatory on Maunakea, Hawaiʻi Island, have measured one of the most precise ages yet for a Sun-like star hosting a brown dwarf companion. The result offers a powerful new test of how brown dwarfs cool and evolve over time, helping…
A New Spin on Planet Formation
The largest survey of exoplanet spins confirms long-predicted relationship between planetary mass and rotation Maunakea, Hawaiʻi – Astronomers using the W. M. Keck Observatory on Maunakea, Hawaiʻi Island, have confirmed a long-predicted relationship between planetary mass and rotation. By measuring the rotation rates of a large sample of directly imaged extrasolar planets and more massive…