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New Meteorological Beast on Jupiter

Astronomers have measured winds in the middle atmosphere of Jupiter for the first time and revealed the fast jet streams within the planet’s deeper layers. A paper published in Astronomy & Astrophysics is giving new meaning to the term “polar vortex.”

To calculate the speed of the polar nets located far below the cloud Customers used the Atacama Large Millimeter Array in Chile, The fastest of these jets are moving at 895 miles per hour which is nearly five times faster than winds produced by the strongest hurricanes on Earth.

Thibault Cavalié, the lead author of the study and a planetary scientist at the Laboratoire d’Astrophysique de Bordeaux in France, said these jets, found under Jupiter’s main auroras seem to be the lower tails supersonic jets seen 900 km above. The European southern observatory stated it as a unique meteorological beast.

Measuring wind speed below the top atmospheric layer of Jupiter is not a simple task. The iconic red and white bands that streak across Jupiter are used to measure winds at the top layer, and the planet’s auroras, which are linked to strong winds in the upper atmosphere, are also used as reference points. scientists measured winds in the middle atmosphere of Jupiter.

 To detect these molecules, the team used 42 of ALMA’s 66 high-precision antennas, marking the first time that scientists have obtained such measurements in the middle atmosphere of Jupiter.  The data collected by Atacama Large Millimeter Array allowed the scientists to measure tiny frequency changes in the radiation emissions of molecules as they’re blown by winds in this part of the planet. The scientist measured the Doppler shift.

Vincent Hue, a planetary scientist at the Southwest Research Institute and a co-author of the new study, said that by calculating the Doppler shift the scientists were able to reduce the speed of the wind and which is similar to reduce the speed of the train by changing the frequency of the train whistle. measurements showed that winds under auroras near the poles were moving at 895 mph.

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