Hubble space telescopes
and NASA's Spitzer investigated the stormy atmosphere of a brown dwarf called
2MASSJ22282889-431 026, creating the "climate map" far closer to this
kind of cold orbs similar to stars. The forecast shows clouds planet-sized
wind-driven involving these strange worlds.
Brown dwarfs are formed
from the condensation of gas, as do the stars,but lack the necessary amount of
mass to fuse atoms and energy.
Instead, these objects, which some call
"failed stars", are more similar to gas planets with atmospheres
complex and varied. The new research is a soar toward a better understanding
not only of brown dwarfs, but also of the atmospheres of planets away from the
solar system.
Hubble and Spitzer
observed simultaneously as the light of the brown dwarf varied over time,
increasing and decreasing luminosity each about 90 minutes as the body rotates.
The astronomers found that the time change occurred depended brightness when
observed using different wavelengths of infrared light. The changes are the
result of different layers of material swirling in the brown dwarf in
windstorms as large as the Earth itself. Spitzer and Hubble are different
atmospheric layers because certain wavelengths are blocked by water steam and
methane at high altitude, while other infrared wavelengths emerging from much
deeper layers.
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