The world's first millimeter-wave solar radio observatory was launched to fill the gap in solar observation data

IT House February 6 news, solar flares outbreak is the main source of catastrophic space weather, directly threatening the safety of human space facilities and space exploration, will lead to navigation errors, communication interruptions, etc., but the current traditional solar radio instruments can not obtain a complete measurement of the radiation spectrum.

In order to fill the gap in the observation data of the millimeter wave band, scientists from the Space Electromagnetic Detection Technology Laboratory (LEAD) of the Institute of Space Sciences of Shandong University recently successfully developed the world's first set of millimeter-wave solar radio spectrum observation system working at 35-40GHz.

The instrument realizes scanning observation of 5GHz bandwidth in the range of 35-40GHz, with a system noise figure of ~300K, a system linearity of > of 0.9999, a time resolution of 5ms to 1.3s (~134ms, default), and a frequency resolution of 153kHz.

According to reports, the system is based on the scientific goals and development plans proposed by Professor Chen Yao, chief scientist of the innovation team of the climbing plan of Shandong University, and completed by Yan Fabao, director of the Space Electromagnetic Detection Technology Laboratory of the Academy of Space Sciences and associate professor of the School of Mechanical, Electrical and Information Engineering, who led the members of the laboratory to overcome a number of key technical problems since the end of 2017.

IT House learned that the corresponding major academic paper was published online in the Astrophysical Journal Supplement under the title of "Millimeter Wave Broadband Solar Radio Spectrometer". It is reported that this paper is a small number of scientific research papers published in a series of journals under the American Astronomical Society (AAS) on solar radio observation instruments.

Through this system, scientists can obtain first-hand scientific data, so as to more smoothly carry out scientific research on flare outbreak mechanisms and particle acceleration mechanisms, and can also help space disaster early warning and forecasting, providing a guarantee for the safety of space activities.

Thesis information: https://doi.org/ 10.3847/1538-4365/ac4257