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Oct 16, 2025

Researchers Discover an End-Dominated Collapse and Hub-filament System in G53 Star-Forming Region

The researchers conducted a systematic study of the filamentary structure within the G53 molecular cloud. By combining multi-wavelength observations and simulations, they revealed for the first time that the filament is undergoing an "en...Recently, MENG Dezhao, a PhD student in the Star Formation and Evolution group at the Xinjiang Astronomical Observatory, Chinese Academy of Sciences, and his collaborators conducted a systematic study of the filamentary structure within ...
Oct 15, 2025

AI Atmospheric Calibration Precision for the NanShan 26-m Radio Telescope

By conducting spectral analysis on long-term GNSS observations at the Nanshan station, the researchers found clear annual and semi-annual cycles in ZTD variation, with higher delays in summer and lower in winter. These variations closely...Electromagnetic waves slow down as they pass through the Earth's atmosphere due to variations in air density and water vapor content, resulting in what is known as "tropospheric delay." This delay is considered a major source of error in...
Oct 13, 2025

How Emission Height Affects Pulse Nulling in Pulsars

The researchersalso find that pulsars sending out radio signals from lower heights display a wide range in how often they go to null. But when the radio waves come from higher up, pulsars tend to emit more consistently.A radio pulsar is like a cosmic lighthouse. It is a super dense and rapidly rotating star that “shoots out” beams of signal in the form of radio waves. If the Earth happens to be in the path, a “pulse” of radio waves will be detected...
Oct 10, 2025

Study Provides New Evidence of Giant Filament Collisions in G34 Molecular Cloud

Researchers conducted a systematic study of the Galactic molecular cloud G34. The researchers revealed the collisional signatures and dynamical mechanisms of filamentary structures in this region.Using CO (J=1–0) molecular line data obtained from the 13.7 m millimeter-wave telescope at Delingha Observatory of Purple Mountain Observatory, SUN Mingke, a PhD student from the Star Formation and Evolution Group at Xinjiang Astronomic...
Oct 09, 2025

New Findings of A Young Pulsar’s Timing and Polarization

The researchers conducted long-term monitoring of PSR J0002+6216 with FAST. By combining four years of FAST data with nearly sixteen years of Fermi-LAT observations, they detected two glitches in this pulsar for the first time: a small g...Recently, WEI Yu, a master’s student trained jointly at the Xinjiang Astronomical Observatory (XAO) of the Chinese Academy of Sciences and Xinjiang University, under the guidanceof WANG Na and YAO Jumei, has made breakthrough progress i...
Sep 05, 2025

‌Decoding the Spectrum of a Cosmic “Lighthouse”: Researchers Unravel the Polarization Mystery of a Millisecond Pulsar

The researchers captured the complete polarization pattern of this millisecond pulsar's main pulse and interpulse as they vary with frequency.In the direction of the constellation Vulpecula within our Milky Way galaxy, a cosmic “lighthouse” named PSR B1937+21 spins at an astonishing rate of 642 revolutions per second, emitting electromagnetic pulses rivalling the precision o...

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