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Unmanned Spaceflight.com _ Telescopic Observations _ Exoplanet Atmospheres
Posted by: JRehling Jan 24 2017, 06:34 AM
https://www.scientificamerican.com/article/signs-of-alien-air-herald-a-new-era-of-exoplanet-discoveries/
Some exciting results from Gliese 1132 b. Even if this is inconclusive, it suggests a great possibility for firmer data when the JWST takes a look a couple of years from now.
FYI, Gliese 1132 b is estimated to have earthlike size and bulk composition, but at a distance from its star to receive far more radiative heating than Venus.
Posted by: dudley Jan 24 2017, 09:39 PM
Some exciting results from Gliese 1132 b. Even if this is inconclusive, it suggests a great possibility for firmer data when the JWST takes a look a couple of years from now.
FYI, Gliese 1132 b is estimated to have earthlike size and bulk composition, but at a distance from its star to receive far more radiative heating than Venus.
So readily finding an Earth-like, tidally locked planet, with a robust atmosphere, in orbit of an M dwarf star, appears to indicate that these are common. It's often been suspected that such planets would quickly loose their atmospheres to stellar erosion. In that M class stars make up a large portion of the stars in our galaxy, this discovery seems to greatly enhance the possibilities for life therein.
Posted by: belleraphon1 Jan 24 2017, 10:54 PM
the journal paper freely available on arxiv
Detection of the atmosphere of the 1.6 Earth mass exoplanet GJ 1132b
https://arxiv.org/pdf/1612.02425.pdf
Craig
Posted by: nprev Feb 23 2017, 05:50 AM
ADMIN NOTE: Moved all posts concerning TRAPPIST-1 to http://www.unmannedspaceflight.com/index.php?showtopic=5964&st=40&start=40, which is dedicated to ground-based exoplanet discoveries. This one's sort of a hybrid, so will retitle that thread as well.
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