Prof. YAN Yihua and his research team from the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC) recently released detailed results of observations by the new generation solar radio telescope-Mingantu Spectral Radio Heliograph (MUSER)-from 2014 to 2019.

The study was published in Frontiers in Astronomy and Space Sciences on March 29. It may help us better understand the basic nature of solar eruptions.

Solar radio bursts are associated with different types of powerful eruptions like solar flares, coronal mass ejections, and various thermal and nonthermal processes. They are prompt indicators of disastrous space weather events.

Solar radio observations, especially at centimeter and decimeter wavelengths, play an important role in revealing the key physics behind primary energy release, particle acceleration and transportation. They also help identify crucial precursors of solar storms.

As the most powerful solar radio telescope in the world today, MUSER consists of 100 antennas spread over three spiral-shaped arms with a maximum baseline length of 3 km on the grassland in Inner Mongolia.

Its configuration is optimized to meet the needs of observing the full solar disk over an ultrawide frequency range of 0.4-15 gigahertz. Its images offer a temporal resolution of 25-200 milliseconds, spatial resolution of 1.3-51.6 arcseconds, spectral resolution of 25 megahertz and a high dynamic range of 25 decibels.

MUSER provides a unique, powerful tool for measuring solar magnetic fields and tracing the dynamic evolution of energetic electrons in a wide frequency range, which will help scientists better understand the origin of various solar activities and the basic drivers of space weather.

From MUSER, scientists can capture the most sensitive radio signals of even very small solar eruptive events. The observations also yield images of solar magnetic fields from the solar chromosphere up to the higher corona.

"MUSER, with its extension to metric and decametric wavelengths, will further play the role of new generation radio heliograph. It will become the leading solar-dedicated radio facility in the world for solar physics and space weather studies," said Prof. YAN, chief scientist of Solar Physics at NAOC and the first author of the study.

Research Report: "Mingantu Spectral Radioheliograph for Solar and Space Weather Studies"

Related Links
Chinese Academy of Sciences
Solar Science News at SpaceDaily

Tweet

Thanks for being here; We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain. With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords. Our news coverage takes time and effort to publish 365 days a year. If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.
SpaceDaily Contributor $5 Billed Once credit card or paypal		SpaceDaily Monthly Supporter $5 Billed Monthly paypal only

New computer model helps brings the sun into the laboratory
Princeton NJ (SPX) Apr 29, 2021
Every day, the sun ejects large amounts of a hot particle soup known as plasma toward Earth where it can disrupt telecommunications satellites and damage electrical grids. Now, scientists at the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) and Princeton University's Department of Astrophysical Sciences have made a discovery that could lead to better predictions of this space weather and help safeguard sensitive infrastructure. The discovery comes from a new computer ... read more