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May 5, 2015 06:00 pm
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/bb2Crk02Yqg/extreme-exoplanet-volcanism-possibly-detected-on-55-cancri-e
Extreme Exoplanet Volcanism Possibly Detected On 55 Cancri E
astroengine writes: Using data from NASA's Spitzer Space Telescope, astronomers have revealed wild atmospheric changes on a well studied exoplanet — changes that they suspect are driven by extreme volcanic activity. Over a period of two years, the team, led by University of Cambridge researchers, noted a three-fold change in temperature on the surface of 55 Cancri e. The super-Earth planet orbits a sun-like star 40 light-years away in the constellation of Cancer. It is twice the size of Earth and 8-times our planet's mass. 55 Cancri e is well-known to exoplanet hunters as the "diamond planet" — a world thought to be carbon-rich, possibly covered in hydrocarbons. But this new finding, published in the arXiv pre-print service, has added a new dimension to the planet's weird nature. "This is the first time we've seen such drastic changes in light emitted from an exoplanet, which is particularly remarkable for a super-Earth," said co-author Nikku Madhusudhan, of Cambridge's Institute of Astronomy, in a press release. "No signature of thermal emissions or surface activity has ever been detected for any other super-Earth to date."Read more of this story at Slashdot.
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/bb2Crk02Yqg/extreme-exoplanet-volcanism-possibly-detected-on-55-cancri-e
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