347 citations · 3.9k across the 113 of their papers we have counts for
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Relativistic baryonic jets from an ultraluminous supersoft X-ray source
Ji-Feng Liu, Yu Bai, Song Wang +10
The formation of relativistic jets by an accreting compact object is one of the fundamental mysteries of astrophysics. While the theory is poorly understood, observations of relati…
Simulating the galaxy cluster "El Gordo" and identifying the merger configuration
Congyao Zhang, Qingjuan Yu, Youjun Lu
The observational features of the massive galaxy cluster "El Gordo" (ACT-CL J0102-4915), such as the X-ray emission, the Sunyaev-Zel'dovich (SZ) effect, and the surface mass densit…
Quiescent luminous red galaxies (LRGs) as cosmic chronometers: on the significance of mass and environmental dependence
Gaochao Liu, Youjun Lu, Lizhi Xie +2
Massive luminous red galaxies (LRGs) are believed to be evolving passively and can be used as cosmic chronometers to estimate the Hubble constant. However, different LRGs may be lo…
A probable Milli-Parsec Supermassive Binary Black Hole in the Nearest Quasar Mrk 231
Chang-Shuo Yan, Youjun Lu, Xinyu Dai +1
Supermassive binary black holes (BBHs) are unavoidable products of galaxy mergers and are expected to exist in the cores of many quasars. Great effort has been made during the past…
On Testing the Kerr Metric of the Massive Black Hole in the Galactic Center via Stellar Orbital Motion: Full General Relativistic Treatment
Fupeng Zhang, Youjun Lu, Qingjuan Yu
The S-stars in the Galactic center (GC) are anticipated to provide unique dynamical constraint on the spin of the GC massive black hole (MBH). In this paper, we develop a fast full…
19 low mass hyper-velocity star candidates from the first data release of LAMOST survey
Yin-bi Li, A-Li Luo, Gang Zhao +12
Hyper-velocity stars are believed to be ejected out from the Galactic center through dynamical interactions between (binary) stars and the central massive black hole(s). In this pa…