1 citations · 2 across the 8 of their papers we have counts for
8 papers
A Jet from a Nearly Dormant Black Hole
Xiaopeng Cheng, Hai Yang, Jun Yang +11
Most galaxies host supermassive black holes (SMBHs) that remain weakly accreting or dormant for much of their lifetimes. At the lowest accretion rates, these systems may represent…
A Radio Changing-state Jet in the Narrow-line Seyfert 1 Galaxy J1105+1452
Liming Dou, Zhining Chen, Jiahua Wu +9
We report the discovery of a radio-quiet to radio-loud transition in the narrow-line Seyfert 1 galaxy J1105+1452. The source has undergone a long-term evolution from a radio-quiet…
Resolving the black hole sphere of influence in a hyper-luminous obscured quasar at redshift 4.6
Mai Liao, Roberto J. Assef, Chao-Wei Tsai +17
Supermassive black holes (SMBHs) imprint gravitational signatures on the matter within their sphere of influence (SoI). Nuclear gas dynamics can hence be used to accurately measure…
The orbital period of the long-period and colliding-wind binary WR 146 from radio interferometry of the shock cone
Shiming Wen, Bo Zhang, Shuangjing Xu +8
We report the first measurement of the orbital period of a long-period colliding-wind binary (CWB) system WR 146, derived by tracing the rotational morphology of its wind-colliding…
The Variability of Persistent Radio Sources of Fast Radio Bursts
Ai Yuan Yang, Yi Feng, Chao-Wei Tsai +13
Over 700 bright millisecond-duration radio transients, known as Fast Radio Bursts (FRBs), have been identified to date. Nevertheless, the origin of FRBs remains unknown. The two re…
Shock waves in the magnetic reconnection in the flares on the accretion disk of the SGR~A*
TianLe-Zhao, XiaoFeng-Li, ZeYuan-Tang +1
Sgr~A* often shows bright, episodic flares observationally, the mechanism of the flares intermittent brightening is not very clear. Many people believe the flares may formed by the…
The X-ray high-energy cutoff in Compact Symmetric Object Mrk 348
Mai Liao, Junxian Wang, Jialai Kang +2
Compact radio AGN are thought to be young radio active galactic nuclei (AGN) at the early stage of AGN evolution, thus are ideal laboratory to study the high-energy emission throug…
A centi-pc-scale compact radio core in the nearby galaxy M60
Xiaofeng Li, Jun Yang, Xiaopeng Cheng +7
M60, an elliptical galaxy located 16.5~Mpc away, has an active nucleus with a very low luminosity and an extremely low accretion rate. Its central supermassive black hole has a mas…