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Jul 31, 2026

Researchers Reveiled Intricate Physical and Chemical Properties of the W33 Giant Molecular Cloud

The researchers carried out 18–26 GHz broadband spectral-line observations of the W33 giant molecular cloud using the German Effelsberg 100-meter radio telescope.The researchers precisely determined the physical and chemical properties ...Associate Researcher Kadirya Tursun of the Star Formation and Evolution Group at the Xinjiang Astronomical Observatory of the Chinese Academy of Sciences, together with collaborators, carried out 18–26 GHz broadband spectral-line observ...
Jul 30, 2026

How Do Massive Stars Keep Growing? Thermal Feedback May Be the Key

The researchers investigated how massive protostars heat their surrounding material using data from the ALMA-QUARKS survey. The study found that intense radiation from protostars can suppress further fragmentation of the surrounding hot ...Massive stars form within cold, dense molecular clouds. As gas contracts under gravity, it can readily fragment into many smaller cores. A longstanding question in astronomy is thereforehow massive stars avoid excessive fragmentation of ...
Jul 23, 2026

A New Finding Reveals New Clues to Pulsar Interior–Magnetosphere Coupling

By analyzing the long-term timing data obtained with the Nanshan 25 m radio telescope from 2002 to 2014 and the publicly available international datasets, a research team from the Xinjiang Astronomical Observatory, Chinese Academy of Sci...Pulsars are rapidly rotating neutron stars with exceptionally stable spin rates, making them veritable "cosmic clocks" in the universe. However, some pulsars undergo sudden "glitches"—abrupt spin-up events followed by a gradual recovery...
Jul 02, 2026

A Fossil Bubble in the Milky Way Reveals a Relay of Star Formation

The researchers conducted a study on G35.28+0.04, a giant ring-like molecular gas structure in the Milky Way. They found that this structure may record a "relay race" of star formation that has lasted for tens of millions of years. The r...Massive stars play a key role in the interstellar medium cycle, molecular cloud evolution, and star formation. Through ultraviolet radiation, stellar winds, and even supernova explosions, massive stars continuously influence the surround...
Jul 02, 2026

Time-Variable Periodic Nulling Revealed in PSR B0751+32

The researchers conducted high-sensitivity observations of pulsar B0751+32, capturing the time-variable nature of its periodic nulling. The study reveals that the nulling period varies significantly between different observing epochs an...Radio emission of some pulsars occasionally ceases suddenly during certain rotation periods, a phenomenon known as "pulsar nulling." When this silence follows a regular, repeating pattern, it is called periodic nulling. Earlier models su...
Jul 02, 2026

New Findings Reveal A Pulsar Exhibits Three Distinct Emission Variations

Using observational data from Australia’s Parkes 64-meter Radio Telescope, the researchers collected and meticulously analyzed over ten thousand single pulses, confirming that a single pulsar can host three unique emission behaviors at ...Pulsars in space act like rotating cosmic lighthouses, continuously emitting regular radio signals. PSR J0846−3533 is exceptional, as it displays three entirely different emission variations simultaneously, a phenomenon that had never b...

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