"We're finding these discrete, powerful waves that wash over the spacecraft, kind of like rogue waves in an ocean", said Justin Kasper, a principal investigator whose team at the University of MI built a solar wind-sensing instrument on the Parker probe. The spacecraft can withstand insanely high temperatures, enabling it to gather unprecedented data on our star and its effects on our planet.
Scientists said Wednesday they've observed bursts of energetic particles never before seen on such a small scale and switchback-like reversals in the out-flowing solar magnetic field. The findings, offering fresh details about how the sun spawns space weather, are reshaping astronomers' understanding of violent solar wind that can hamper satellites and electronics on Earth.
NASA released data from the flybys through various portals in mid-November. teleconference will help us understand the details, though, with the help of four expert mission will discuss the results of the probe instrument.
Thanks to extreme ultraviolet mapping of the Sun by other spacecraft, the researchers were able to trace the wind and the magnetic fields back to a source- coronal holes- that strongly suggests that these holes are the source of the slow solar wind. The first measurements taken relate to the sun's corona and its magnetic fields.
WISPR, designed, developed and led by NRL, records visible-light images of the solar corona and solar outflow in two overlapping cameras, which together cover more than 100-degrees angular width from the Sun. Coronal holes are magnetically open areas from which solar wind particles speed into space. Farther from the sun, at the distance the spacecraft measured in these first encounters, they had expected to see, at most, a weak signature of that rotation. To our surprise when we got closer to the sun, not only were the little waves stronger but we also saw giant "rogue waves" just like in the ocean.
"We can now go look at the surface of the sun and figure out what is launching these waves", he said.
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"There were thousands of these rogue waves seen in the ten days we were near the sun".
Kasper said findings also showed that the wind rotates around the sun between ten and 20 times faster than models had predicted. The first results from NASA's Parker Solar Probe, which aims to "touch the sun" have been announced by scientists.
"These first results are really exciting, as, whilst there is evidence of these spikes in the magnetic field, their origin and nature is still open for discussion".
He said: "We are both very happy to have been given the opportunity to work on Parker Solar Probe during our MSci project".
Parker Solar Probe will also be joined next year by Solar Orbiter, a European Space Agency mission with Imperial kit onboard.
"Going forward, as Parker gets even closer to the sun, we'll uncover more answers to these mysteries and make even greater discoveries", McComas said.
In a statement, Stuart Bale, from the University of California, Berkeley, and principal investigator on the probe's FIELDS instrument, said: "We have been working almost around the clock for a decade on this thing, so to see the data.it is just a pleasure".