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Nov 20, 2024

Researchers develop advanced digital backend system for ultra-wide bandwidth low-frequency pulsar observations

To meet the development needs of the ultra-wide bandwidth low-frequency pulsar receiving system for the Qitai Radio Telescope (QTT), Senior Engineer ZHANG Hailong from the Xinjiang Astronomical Observatory (XAO) of the Chinese Academy of...To meet the development needs of the ultra-wide bandwidth low-frequency pulsar receiving system for the Qitai Radio Telescope (QTT), Senior Engineer ZHANG Hailong from the Xinjiang Astronomical Observatory (XAO) of the Chinese Academy of...
Nov 13, 2024

Researchers investigate metal pollution in white dwarf star atmospheres

Researchers conducted a numerical study on the tidal disruption of a planet surrounding a white dwarf and relevant accretion processes. Their work has constrained the structural evolution characteristics of planets during certain disrupt...Approximately 25-50% of white dwarfs have been found to exhibit metal pollution. It is commonly believed that the tidal disruption of planets surrounding a white dwarf may lead to the contamination of its atmosphere with metals. The prox...
Oct 25, 2024

New Study Explores Molecular Distributions in Aquila Giant Molecular Cloud

The resaerchers presented observations of the Aquila giant molecular cloud using the NanShan 26 m Radio Telescope and the Delingha 13.7 m millimeter -wavelength telescope.Using observation data obtained from the NanShan 26m Radio Telescope at the Nanshan Station of the Xinjiang Astronomical Observatory (XAO) and the 13.7m telescope at the Purple Mountain Observatory in Delingha, researchers from XAO analy...
Oct 24, 2024

How Hub-Filament Systems Shape Massive Star Formation

Researchers conducted a study on the gas structure, kinematics, and star formation of the massive star-forming region W49A in the Milky Way.Recently, ZHANG Wenjun, a PhD student from the Star Formation and Evolution Group at the Xinjiang Astronomical Observatory (CAS), conducted a study on the gas structure, kinematics, and star formation of the massive star-forming region W...
Oct 21, 2024

New Insights into Aminoacetonitrile and Its Isomers in the Interstellar Medium

The researchers outlined a chemical reaction network for AAN and its isomers by quantum chemistry, the ab initio methods. They applied the three-phase chemical code to simulate the formation and destruction of AAN and its isomers in hot ...Aminoacetonitrile (NH2CH2CN, AAN) has been proposed as a potential precursor to glycine in the interstellar medium (ISM), making it crucial prebiotic molecule in the study of life’s origins. As its special bifunctional building blocks c...
Sep 24, 2024

Study Reveals Feedback Effects on Massive Star Formation from W5 Molecular Cloud Complexes

Researchers from Xinjiang Astronomical Observatory conducted an in-depth study of two adjacent massive HII regions —W5 molecular cloud complexes on the Perseus Arm of the Milky Way. By conducting observations of CO (1-0) and NH3, the re...Recently, PhD student SHEN Hailiang from the Star Formation and Evolution Group at the Xinjiang Astronomical Observatory of the Chinese Academy of Sciences, under the guidance of his supervisor, Prof.Jarken ESIMBEK, conducted an in-depth...

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