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6 papers
Searching for the nano-Hertz stochastic gravitational wave background with the Chinese Pulsar Timing Array Data Release I
Heng Xu, Siyuan Chen, Yanjun Guo +24
Observing and timing a group of millisecond pulsars (MSPs) with high rotational stability enables the direct detection of gravitational waves (GWs). The GW signals can be identifie…
First Detection of Radio Recombination Lines of Ions Heavier than Helium
Xunchuan Liu, Tie Liu, Zhiqiang Shen +31
We report the first detection of radio recombination lines (RRLs) of ions heavier than helium. In a highly sensitive multi-band (12--50 GHz) line survey toward Orion KL with the Ti…
A Q-band line survey towards Orion KL using the Tianma radio telescope
Xunchuan Liu, Tie Liu, Zhiqiang Shen +28
We have conducted a line survey towards Orion KL using the Q-band receiver of Tianma 65 m radio telescope (TMRT), covering 34.8--50 GHz with a velocity resolution between 0.79 km s…
The intrinsic structure of Sagittarius A* at 1.3 cm and 7 mm
Ilje Cho, Guang-Yao Zhao, Tomohisa Kawashima +63
Sagittarius A* (Sgr A*), the Galactic Center supermassive black hole (SMBH), is one of the best targets to resolve the innermost region of SMBH with very long baseline interferomet…
Deformation measurement by single spherical near-field intensity measurement for large reflector antenna
Qian Ye, Boyang Wang, Qiang Yao +3
This paper presents a new method to obtain the deformation distribution on the main reflector of an antenna only by measuring the electric intensity on a spherical surface with the…
TMRT observations of 26 pulsars at 8.6 GHz
Ru-Shuang Zhao, Xin-Ji Wu, Zhen Yan +18
Integrated pulse profiles at 8.6~GHz obtained with the Shanghai Tian Ma Radio Telescope (TMRT) are presented for a sample of 26 pulsars. Mean flux densities and pulse width paramet…