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Solar Orbiter's first images reveal 'campfires' on the Sun 5nvklj





Solar Orbiter's first images reveal 'campfires' on the Sun 9tpt39

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Solar Orbiter's first images reveal 'campfires' on the Sun

Dragon
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Solar Orbiter's first images reveal 'campfires' on the Sun Empty Solar Orbiter's first images reveal 'campfires' on the Sun

Post by Dragon Mon Aug 03, 2020 4:15 pm

The first images from Solar Orbiter, a new Sun-observing mission by ESA and NASA, have revealed omnipresent miniature solar flares, dubbed 'campfires', near the surface of our closest star.

"These campfires are totally insignificant each by themselves, but summing up their effect all over the Sun, they might be the dominant contribution to the heating of the solar corona," says Frédéric Auchère, of the Institut d'Astrophysique Spatiale (IAS), France, Co-Principal Investigator of EUI.

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Solar Orbiter's first images reveal 'campfires' on the Sun 334pu7m
Dragon
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Solar Orbiter's first images reveal 'campfires' on the Sun Empty Re: Solar Orbiter's first images reveal 'campfires' on the Sun

Post by Dragon Mon Aug 03, 2020 4:17 pm

Solar Orbiter's first images reveal 'campfires' on the Sun 200716120652_1_540x360
Credit: Solar Orbiter/EUI Team (ESA and NASA); CSL, IAS, MPS, PMOD/WRC, ROB, UCL/MSSL

Solar Orbiter spots 'campfires' on the Sun. Locations of campfires are annotated with white arrows.

Source / Image Courtesy


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Solar Orbiter's first images reveal 'campfires' on the Sun 334pu7m
Dragon
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Solar Orbiter's first images reveal 'campfires' on the Sun Empty Re: Solar Orbiter's first images reveal 'campfires' on the Sun

Post by Dragon Mon Aug 03, 2020 4:18 pm



The first images from ESA’s Solar Orbiter, captured around the spacecraft’s first close pass of the Sun, some 77 million kilometres from its surface, are already exceeding expectations revealing interesting new phenomena on our parent star.

This animation shows a series of close-up views captured by the Extreme Ultraviolet Imager (EUI) at wavelengths of 17 nanometers, showing the upper atmosphere of the Sun, or corona, with a temperature of around 1 million degrees.

These images reveal a multitude of small flaring loops, erupting bright spots and dark, moving fibrils. A ubiquitous feature of the solar surface, uncovered for the first time by these images, have been called ‘campfires’. They are omnipresent minuature eruptions that could be contributing to the high temperatures of the solar corona and the origin of the solar wind.



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Solar Orbiter's first images reveal 'campfires' on the Sun 334pu7m

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