Jupiter expeditions can also help in the search for dark matter

In a latest research printed in Journal of Excessive Vitality PhysicsTwo researchers from Brown College clarify how information from earlier missions to Jupiter can assist scientists study darkish matter, one of the crucial mysterious phenomena within the universe. The explanation for the choice of earlier Jupiter missions is as a result of huge quantity of information collected in regards to the largest planet within the photo voltaic system, most notably from the orbits of Galileo and Juno. The elusive nature and composition of darkish matter nonetheless eludes scientists, each figuratively and actually, as a result of it doesn’t emit any mild. So why do scientists proceed to check this mysterious – and fully unseen – phenomenon?

“As a result of they exist and we do not know what they’re!” exclaims Dr. Lingfeng Li, a postdoctoral researcher at Brown College and lead writer of the paper. “There’s sturdy proof coming from very completely different information units that time to darkish matter: the cosmic microwave background, stellar motions inside galaxies, gravitational lensing results, and many others. In brief, it behaves like some chilly, non-reactive (and subsequently darkish) mud at massive size scales, in Whereas its nature and potential interactions inside a smaller scale are nonetheless unknown. It have to be one thing totally new: one thing distinct from our baryonic matter.”

A exceptional picture of Jupiter’s Nice Purple Spot together with its violent southern hemisphere taken by NASA’s Juno spacecraft because it handed close to the fuel big planet. (Credit: NASA/JPL-Caltech/Southwest Analysis Institute/Malin House Science Methods/Kevin M. Gill)

Within the research, the researchers talk about how electrons trapped inside Jupiter’s huge magnetic subject and radiation belt can be utilized to probe darkish matter and the darkish medium that exists between the so-called darkish sector and our seen world. They deduced three eventualities for electrons trapped inside Jupiter’s radiation belts: absolutely trapped, semi-trapped, and non-trapped electrons. Their outcomes confirmed that measurements recorded from the Galileo and Juno missions point out that the electrons produced may very well be both fully or practically trapped inside Jupiter’s interior radiation belts, in the end contributing to energetic electron flows.

Take away all advertisements on Universe right now

Be a part of Patreon for less than $3!

Get an ad-free expertise for all times

One purpose of this research was to offer an preliminary effort to make use of information from a previous, energetic, and future mission to Jupiter to look at new physics past the normal mannequin of particle physics. Whereas the info for this research had been collected from the years-long missions of the Galileo and Juno spacecraft to Jupiter, Lee does not suppose any such research may very well be carried out utilizing information from different long-range missions to different planets, comparable to Saturn. and its historic mission Cassini.

“To begin with, Jupiter is far heavier than Saturn,” he explains to me. “Its escape velocity is about twice that of Saturn, which signifies that the speed of darkish matter seize is enormously improved at Jupiter. As well as, Jupiter doesn’t have an essential principal ring, and electrons could be trapped for a very long time earlier than they’re absorbed by the ring materials. Different celestial our bodies in Photo voltaic programs are very small (like Earth). The Solar is an fascinating goal, however its magnetic subject may be very counter-intuitive. We do not know easy methods to interpret photo voltaic information but, but it surely deserves additional research.”

Whereas Lee mentioned they haven’t determined what to do subsequent when it comes to future research, the paper concludes with suggestions for future Jupiter missions to increase the scope of particle physics whereas offering extra correct measurements of energetic electron flows mentioned on this paper.

What new discoveries will we make about darkish matter within the coming years? Solely time will inform, and that is why we’re the science!

As at all times, preserve dong knowledgeable and preserve trying!