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Jul 09, 2024

Researchers using multi-phase-center VLBI observations reveal pc-scale radio emission properties of dual AGNs

Galaxy mergers play a crucial role in the cosmological evolution of galaxies. During galaxy merging, tidal torques can trigger the accretion and feedback of the central black holes in merging galaxies, forming dual active galactic nuclei...Galaxy mergers play a crucial role in the cosmological evolution of galaxies. During galaxy merging, tidal torques can trigger the accretion and feedback of the central black holes in merging galaxies, forming dual active galactic nuclei...
Jun 11, 2024

Emission geometry and jitter noise in millisecond pulsars

In an ideal world, pulses from radio pulsars arrive regularly. However, this is not always the case, and the closest to that is probably the millisecond pulsars (MSPs). As the name suggests, these pulsars have very short rotation periods...In an ideal world, pulses from radio pulsars arrive regularly. However, this is not always the case, and the closest to that is probably the millisecond pulsars (MSPs). As the name suggests, these pulsars have very short rotation periods...
Jun 05, 2024

New Study Determines Upper Limit for Photon Mass

In a recently study published in The Astrophysical Journal, Prof. ZHOU Xia from the Xinjiang Astronomical Observatory (XAO) of the Chinese Academy of Sciences, in collaboration with Dr. WANG Yubin from Sichuan University of Science & Eng...In a recently study published in The Astrophysical Journal, Prof. ZHOU Xia from the Xinjiang Astronomical Observatory (XAO) of the Chinese Academy of Sciences, in collaboration with Dr. WANG Yubin from Sichuan University of Science & Eng...
May 23, 2024

Researchers Unveil the Formation Mechanism of Long-Period Radio Pulsars

Prof. ZHOU Xia from the Xinjiang Astronomical Observatory of the Chinese Academy of Sciences, along with her collaborators, has published a study in the Monthly Notices of the Royal Astronomical Society (MNRAS). The result sheds light on...Prof. ZHOU Xia from the Xinjiang Astronomical Observatory of the Chinese Academy of Sciences, along with her collaborators, has published a study in the Monthly Notices of the Royal Astronomical Society (MNRAS). The result sheds light on...
May 11, 2024

Researchers simulate the RRAT radio-off fraction

There are objects in the Galaxy that emit single and isolated radio pulses. They are not radio pulsars, because their pulses are not regular and it could take seconds to hours until another pulse can be detected.There are objects in the Galaxy that emit single and isolated radio pulses. They are not radio pulsars, because their pulses are not regular and it could take seconds to hours until another pulse can be detected.However, they are thought...
May 11, 2024

A study on radiation characteristics of Rotating Radio Transients using Parkes radio telescope

Rotating radio transients ( RRATs ) are a subclass of pulsars characterized by sporadic emission .Up to now , although nearly 170 RRATs have been discovered , a large number of RRATs lack accurately measured rotation periods , and about ...Rotating radio transients (RRATs) are a subclass of pulsars characterized by sporadic emission. Up to now, although nearly 170 RRATs have been discovered, a large number of RRATs lack accurately measured rotation periods, and about two-t...

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