activity
20232026
most citedResolving the black hole sphere of influence in a hyper-luminous obscured quasar at redshift 4.6

1 citations · 2 across the 8 of their papers we have counts for

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6 papers · 1 filter

astro-ph.HE2026

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…

astro-ph.HE2026★ 1 cited

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…

astro-ph.HE2024

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…

astro-ph.HE2024

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…

astro-ph.HE2024

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…

astro-ph.HE2023

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…