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Aug 23, 2023

Researchers develop oversampled channelization technology for radio astronomy wideband digital signal

The wideband receiving system will generate a large number of real-time astronomical signals , but the signal preprocessing , transmission .Channelization technology uses parallel thought to decompose wideband signal into several adjacen...The wideband receiving system will generate a large number of real-time astronomical signals, but the signal preprocessing, transmission, processing and storage have become urgent issues in the operation of large radio observation equipm...
Aug 23, 2023

Researchers investigate dynamic evolution of the clumps partially disrupted from a planet

The interaction between the materials generated during the disruption process and the central object can generate various explosive phenomena in X-ray, optical, and even radio bands, depending on the system parameters and chemical compos...The interaction between the materials generated during the disruption process and the central object can generate various explosive phenomena in X-ray, optical, and even radio bands, depending on the system parameters and chemical compos...
Aug 22, 2023

How energy is released during the flare eruption?

A research team led by Dr. SHEN Jinhua from Xinjiang Astronomical Observatory of the Chinese Academy of Sciences investigated the process of energy release from a X1.7 class limb flare using the radio observations made by Nobeyama, and X...A research team led by Dr. SHEN Jinhua from Xinjiang Astronomical Observatory of the Chinese Academy of Sciences investigated the process of energy release from a X1.7 class limb flare using the radio observations made by Nobeyama, and X...
Aug 01, 2023

Researchers propose new method for pulsar timing and RFI mitigation

There are several common challenges in the task of radio-frequency interference ( RFI ) mitigation for pulsar signals .Dr . SHAN Hao from the Xinjiang Astronomical Observatory ( XAO ) of Chinese Academy of Sciences conducted a study on R...Radio frequency interference (RFI) caused by human communication techniques (e.g., satellites, base stations, and navigation radars) can significantly distort shapes of multichannel time-frequency radio signals. Subsequent astrophysical ...
Jul 31, 2023

Researchers Investigate Hard X-ray Emission of Neutron Star Low-mass X-ray Binaries

With the observational data of the hard X-ray Modulation Telescope (HXMT), the first X-ray astronomical satellite of China，Dr. DING Guoqiang, a researcher of Xinjiang Astronomical Observatory of Chinese Academy of Sciences, along with h...With the observational data of the Hard X-ray Modulation Telescope (HXMT), the first X-ray astronomical satellite of China, Dr. DING Guoqiang from the Xinjiang Astronomical Observatory of the Chinese Academy of Sciences, along with his c...
Jul 19, 2023

Researchers use correlation analysis method to find evidence of OJ 287 jet precession

YUAN Qi, a doctoral student from the Galaxy cosmology research group of Xinjiang Astronomical Observatory of the Chinese Academy of Sciences, under the guidance of Prof. LIU Xiang and Prof. ZHANG Ming, analyzed the cross-correlation betw...OJ 287 is a typical blazar with relativistic jets, and because the jet point very close to the observer's line of sight, they show a strong beaming effect. At present, flares of about 12 years period have been observed in the optical ban...

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