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Inouye Solar Telescope

All articles tagged with #inouye solar telescope

Maui’s Sun-Telescope: how a 3.6-ton mirror stays cool enough to image the Sun
science17 days ago

Maui’s Sun-Telescope: how a 3.6-ton mirror stays cool enough to image the Sun

On Maui’s Haleakalā, the Daniel K. Inouye Solar Telescope uses a 3.6-ton Zerodur primary mirror and a seven-mile Dynalene coolant loop across 13 independent temperature zones; a heat-stop dumps about 95% of the incoming heat from a 12 kW beam, with nightly ice cooling to prevent overheating, enabling the sharpest solar images yet (roughly 20 km resolution) and revealing fine-scale solar features while funding questions loom over its operation.

Sun Reveals Magnetic Whirlpools in Ultra-Clear Solar Images
science20 days ago

Sun Reveals Magnetic Whirlpools in Ultra-Clear Solar Images

Ultra-detailed images from the Inouye Solar Telescope show Kelvin-Helmholtz swirl patterns in the Sun’s magnetic field, with vortices about 50–65 kilometers apart. These twisting motions transfer and concentrate magnetic energy, potentially fueling solar eruptions such as flares and coronal mass ejections, which can affect space weather and threaten power grids and satellites.

Sun’s surface reveals Kelvin–Helmholtz whirlpools captured by the Inouye Solar Telescope
space22 days ago

Sun’s surface reveals Kelvin–Helmholtz whirlpools captured by the Inouye Solar Telescope

New ultra-high-resolution images from the Daniel K. Inouye Solar Telescope reveal thousands of tiny whirlpools on the Sun’s surface, providing the first direct observation of Kelvin–Helmholtz instabilities on the Sun. The observed vortices, matching computer simulations, may help mix magnetic fields and contribute to heating the corona and driving space-weather events like solar flares and CMEs.

Sun’s surface whirlpools revealed by ultra-high-resolution telescope
science-space23 days ago

Sun’s surface whirlpools revealed by ultra-high-resolution telescope

Using the Daniel K. Inouye Solar Telescope near Maui, scientists captured the Sun’s visible surface in unprecedented detail, revealing Kelvin-Helmholtz instabilities—tiny swirling vortices along magnetic boundaries—that could explain why the Sun’s outer atmosphere (the corona) is hotter than its surface and how magnetic energy is built, released and transported to drive solar flares and coronal mass ejections. The observations align with advanced simulations and may improve space-weather forecasting that affects satellites and power grids.

Sun's surface reveals tiny plasma vortices captured in unprecedented detail
science23 days ago

Sun's surface reveals tiny plasma vortices captured in unprecedented detail

Using the world’s largest solar telescope, astronomers captured the Sun’s visible surface at unprecedented resolution, revealing vortices as small as about 12 miles wide at the edges of solar granules and linking them to Kelvin-Helmholtz instabilities driven by convection and magnetic fields, shedding light on the dynamic processes shaping the Sun’s photosphere.

Sun Surface Reveals Ubiquitous Whirlpools in New High-Res Images
science23 days ago

Sun Surface Reveals Ubiquitous Whirlpools in New High-Res Images

High-resolution images from the NSF’s Daniel K. Inouye Solar Telescope show Kelvin-Helmholtz instabilities across the Sun’s magnetic boundaries, revealing ubiquitous small-scale whirlpools that may help mix plasma and magnetic fields, influence energy transport, and contribute to understanding space weather; findings published in Nature.

Sun's surface revealed in ultra-high-resolution images
science23 days ago

Sun's surface revealed in ultra-high-resolution images

Scientists using Hawaii's Inouye Solar Telescope captured the Sun's surface in the highest-resolution images yet, showing swirling vortices that twist magnetic energy and drive space weather that can affect Earth’s power grids and satellites; the observations, published in Nature, help explain energy transport in the Sun and could improve weather forecasting.