PLANET JANSSEN :
FOSSIL FUEL FREE AND 1200ºF COOLER THAN MODELS PREDICT!
Finding few attractions on Mars, BP, EXXON, CFACT, CEI and American Petroleum Institute climate advertising creatives are studying Nature 's report of the Webb Space Telescope on the hot, rocky exoplanet 55 Cancri e, AKA Janssen where greenhouse gas climate forcing puts even Venus to shame.
one of five known planets orbiting the Sun-like star 55 Cancri. With a diameter nearly twice that of Earth and slightly denser the planet is classified as a super-Earth:
The "rocky" in 55 Cancri e comes with air quotes because it orbits the star at one-twenty-fifth the distance between Mercury and the Sun. Its surface is accordingly likely to be a thousand or so degrees hotter than ordinary lava, its tidally locked dayside a bubbling ocean of magma. tidally locked and a nightside less in perpetual darkness than glowing with the sullen heat of atmospheric transport
Cooler than Expected
The first indication of a substantial atmosphere came from temperature measurements based on its massive infrared thermal emission (see figure above). If the planet were covered in dark molten rock with a thin veil of vaporized rock or no atmosphere at all, the dayside would equilibrate around 4,000 degrees Fahrenheit (~2,200 degrees Celsius).
“Instead, the MIRI data showed a relatively low temperature of about 2,800 degrees Fahrenheit [~1540 degrees Celsius],” said JPL astrophysics spokesman Hu. “This is a very strong indication that energy is being distributed from the dayside to the nightside, most likely by a volatile-rich atmosphere.” While a lava gulfstream could carry some heat around to the dark side, only atmospheric transport is efficient enough to explain the cooling effect.
When the team looked at the NIRCam data, they saw patterns consistent with a volatile-rich atmosphere. “We see evidence of a dip in the spectrum between 4 and 5 microns — less of this light is reaching the telescope,” explained co-author Aaron Bello-Arufe, also from NASA JPL. “This suggests the presence of an atmosphere containing carbon monoxide or carbon dioxide, which absorb these wavelengths of light.” A planet with no atmosphere or an atmosphere consisting only of vaporized rock would not have this specific spectral feature.
“We’ve spent the last ten years modelling different scenarios, trying to imagine what this world might look like,” said co-author Yamila Miguel from the Leiden Observatory and the Netherlands Institute for Space Research (SRON). “Finally getting some confirmation of our work is priceless!”
