Search results for chromosphere

Astronomy Feb 19, 2021

Sounding rocket CLASP2 elucidates solar magnetic field

Cooperative operations between a solar observation satellite and a sounding-rocket telescope have measured the magnetic field strength in the photosphere and chromosphere above an active solar plage region. This is the first ...

Astronomy Jan 22, 2021

Magnetic waves explain mystery of Sun's outer layer

The Sun's extremely hot outer layer, the corona, has a very different chemical composition from the cooler inner layers, but the reason for this has puzzled scientists for decades.

Astronomy Jan 5, 2021

Superflare detected on an ultracool star

Using Xinglong observatory's Ground-based Wide Angle Cameras (GWAC), astronomers from China and France have detected a new superflare of an ultracool star known as SDSS J013333.08+003223.7. The newly found event, designated ...

Astronomy Dec 7, 2020

Scientists get the lowdown on sun's super-hot atmosphere

A phenomenon first detected in the solar wind may help solve a long-standing mystery about the sun: why the solar atmosphere is millions of degrees hotter than the surface.

Astronomy Oct 12, 2020

Studying the sun as a star to understand stellar flares and exoplanets

New research shows that sunspots and other active regions can change the overall solar emissions. The sunspots cause some emissions to dim and others to brighten; the timing of the changes also varies between different types ...

Astronomy Sep 9, 2020

The presence of resonating cavities above sunspots has been confirmed

Sunspots are darker regions which often appear on the Sun's surface. They are caused by strong concentrations of magnetic field, and can be as big as the Earth, or even much bigger.

Astronomy Jul 29, 2020

New evidence for fragmentation of energy release in solar flares

Type III radio bursts from the sun are signatures of energetic (∼1–100 keV) electrons, accelerated at the reconnection sites, propagating upward through the corona into the interplanetary medium along open magnetic field ...

Space Exploration Jun 30, 2020

Revealing the magnetic nature of tornadoes in the sun's atmosphere

The first direct measurements of the magnetic field in the chromosphere of the sun by a team including University of Warwick physicists has provided the first observational evidence that huge tornadoes in our sun's atmosphere ...

Astronomy Jun 16, 2020

Supergiant atmosphere of Antares revealed by radio telescopes

An international team of astronomers has created the most detailed map yet of the atmosphere of the red supergiant star Antares. The unprecedented sensitivity and resolution of both the Atacama Large Millimeter/submillimeter ...

Space Exploration Dec 2, 2019

Scientist leads international team to crack 60-year-old mystery of Sun's magnetic waves

A Queen's University Belfast scientist has led an international team to the ground-breaking discovery of why the Sun's magnetic waves strengthen and grow as they emerge from its surface, which could help to solve the mystery ...

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