Blixtar på Jupiter kan vara 100 gånger kraftfullare än på jorden

Svenska

Forskare som analyserat data från NASA:s rymdsond Juno har fastställt att blixtar på Jupiter kan nå intensiteter upp till 100 gånger större än typiska blixtnedslag på jorden. Resultaten, som bygger på mikrovågsobservationer från 2021 och 2022, belyser väsentliga skillnader i hur stormar bildas på gasjätten.

Studien, som publicerats i AGU Advances, använde Junos mikrovågsradiometer för att mäta radiostrålning från blixtar under perioder med minskad stormaktivitet i Jupiters norra ekvatorialbälte. Forskare registrerade i genomsnitt tre blixtar per sekund under flera passager, varav en mätning detekterade 206 pulser. Av totalt 613 signaler varierade energinivåerna från att vara jämförbara med blixtar på jorden upp till mer än 100 gånger starkare, även om exakta jämförelser förblir osäkra på grund av de olika observerade våglängderna.

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