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Aug 07, 2020

Progress in the chemical models of interstellar cyanomethanimine isomers

Cyanomethanimine is a chemical intermediate in the proposed synthetic routes of adenine, which is one of nucleobases of DNA and RNA, and may play an important role in forming biological molecules in the interstellar medium. Cyanomethanim...
Aug 04, 2020

Radio pulsars are fast rotating and highly magneti

Radio pulsars are fast rotating and highly magnetized neutron stars that generate beams of radio emission. The radio emission from some pulsars varies significantly on various timescales. Backer（1970） reported the phenomenon of pulse n...
Jul 16, 2020

G15.684-0.29: One of the Largest Galactic Infrared Bubbles Showing Strong Evidence of Triggered Star Formation

The infrared (IR) dust bubble is a shell structure formed by the interaction of the expanding H II region with the surrounding interstellar medium (ISM). It provides us with a good sample to study whether the expanding H II regions could...
Jul 15, 2020

New research progress of rotating spheroids in the weak gravity field approximation

There are many rotating spheroids in the universe. Since the times of Newton, many astronomers and physicists have studied them. They have used theoretical methods (mainly as moment methods) to study their gravitational properties. One i...
Jun 19, 2020

Detection of HCN molecules in comet 46P

A recent research achievement was gained by Dr. WANG Zhen, in the Planetary Science Research Group at XAO, from the detection of the 88631.8473 MHz emission molecule spectral lines in the volatilized gas of Comet 46P/Wirtanen using the 1...
Apr 27, 2020

Study on the Formation of A Special Source: Binary Millisecond Pulsar PSR J1640+2224

PSR J1640+2224 is a binary millisecond pulsar with a spin period Ps=3.16 ms. It is located in a wide and nearly circular binary system that contains a white dwarf (WD) companion and an orbital period of 175 days. According to the theoret...

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