Persistent Storm Detected On Low-Mass Star (latimes.com)
The L.A. Times reports that researchers using the Kepler and Spitzer space telescopes have discovered an astronomical first: a low-mass star with a huge, persistent, swirling surface feature akin to the long-lived storm on Jupiter. The star, W1906+40 , is cool enough ("a mere 3,500 degrees Fahrenheit or so") to allow cloud formation. A slice:
This star was first spotted by NASA's Wide-field Infrared Survey Explorer (or WISE) in 2011; study leader John Gizis of the University of Delaware, Newark and colleagues then looked through NASA's Kepler data to further examine the star. (It just so happened that Kepler was pointing in the right direction to spot the L-dwarf.) ... "The long life of the cloud is in contrast with weather changes seen in cooler brown dwarfs on the timescale of hours and days," they wrote.
In fact, the researchers believe the storm has been going strong for at least two years — a stability they seemed to find slightly baffling.
"Evidently the W1906+40 spot is very long-lived compared to the 'weather' features in cooler L and T dwarfs," they wrote. "Why would the clouds in W1906+40 be stable?"
Seems to me I've seen this before....
"I do not agree with what you say, but I will defend to the death your right to say it"
Nothing to see here, just another Slashdot re-post of a story from Friday.
corporate welfare of the worst type. It does nothing to help the children.
But it was aliens!
We must right now have a conference to agree to limit the effect of human impact on interstellar climate change, our future depends on it ~
There's always stories about these exoplanets and exostars but rarely any pictures. Didn't see a link in the story to pictures, either. Where are they, NASA?
Sure, there's some long-baseline interferometry happening on Earth's surface, but I'd love to see imagers with a baseline spanning an AU or so.
Geometry ? Or gravity. That's pretty much it.
Lindsay Lohan got drunk and puked in public again, but they mean an actual star..
Who still measures things like this in Fahrenheit ? Come on - admit that you are in the 21st century - that should have been (about) 1925 Celsius or 2200 Kelvin