37 citations · 156 across the 17 of their papers we have counts for
18 papers
Gone with the wind? Potential gas inflow in the broad-line region of a QSO at traced by time-varying Balmer absorption
Xihan Ji, Dominic J. Walton, Francesco D'Eugenio +6
We report spectroscopic observations of a remarkable QSO, J115724.80-000455.56 at from the Dark Energy Spectroscopic Instrument (DESI) survey. This QSO exhibits variabili…
Formation of black hole stars via star--black hole collisions
Yanlong Shi, Qingru Hu, Zhenghao Xu +2
In dense stellar environments such as globular clusters and active galactic nucleus (AGN) disks, stellar-mass black holes (sBHs) may frequently collide with massive stars. We inves…
Dynamical formation of high-eccentricity compact binaries through BH--BH*/TZO collisions
Qingru Hu, Yanlong Shi, Douglas N. C. Lin +1
The rapidly accumulating discoveries of binary stellar-mass black-hole (sBH) coalescences, detected by LIGO, have opened a new window into the formation and evolution of compact bi…
Stellar mergers and chemical element mixing: implications for the metamorphic stellar evolution in AGN disks
Yanlong Shi, Xiaoshan Huang, Douglas N. C. Lin +1
Chemical mixing during stellar mergers can significantly influence the subsequent evolution of the merger remnant. We perform a suite of three-dimensional hydrodynamical simulation…
Stellar Evolution with Radiative Feedback in AGN Disks
Zheng-Hao Xu, Yi-Xian Chen, Douglas N. C. Lin
Stars embedded in the inner pc region of an active galactic nucleus (AGN) experience extreme accretion conditions that significantly alter their evolution. We present one-dimension…
A dust condensation instability in AGN atmospheres: failed winds and the broad line region
James E. Owen, Douglas N. C. Lin
Active galactic nuclei (AGN) are important drivers of galactic evolution; however, the underlying physical processes governing their properties remain uncertain. In particular, the…
Planet Migration in Protoplanetary Disks with Rims
Zhuoya Cao, Ya-Ping Li, Douglas N. C. Lin +1
Complex structures, including sharp edges, rings and gaps, have been commonly observed in protoplanetary disks with or without planetary candidates. Here we consider the possibilit…
Capture and Escape of Planetary Mean-motion Resonances in Turbulent Discs
Yi-Xian Chen, Yinhao Wu, Ya-Ping Li +4
Mean-motion resonances (MMRs) form through convergent disc migration of planet pairs, which may be disrupted by dynamical instabilities after protoplanetary disc (PPD) dispersal. T…
The stochastic nature of migration of disc instability protoplanets in three-dimensional hydrodynamical and MHD simulations of fragmenting discs
Noah Kubli, Lucio Mayer, Hongping Deng +1
We present a detailed analysis of the nature of migration of protoplanetary clumps formed via disc instability in self-consistent 3D hydrodynamical (HD) and magneto-hydrodynamical…
Formation of free-floating planetary mass objects via circumstellar disk encounters
Zhihao Fu, Hongping Deng, Douglas N. C. Lin +1
The origin of planetary mass objects (PMOs) wandering in young star clusters remains enigmatic, especially when they come in pairs. They could represent the lowest-mass object form…
Concurrent Accretion and Migration of Giant Planets in their Natal Disks with Consistent Accretion Torque
Ya-Ping Li, Yi-Xian Chen, Douglas N. C. Lin
Migration commonly occurs during the epoch of planet formation. For emerging gas giant planets, it proceeds concurrently with their growth through the accretion of gas from their n…
Episodic eruptions of young accreting stars: the key role of disc thermal instability due to Hydrogen ionisation
Sergei Nayakshin, Fernando Cruz Saenz de Miera, Agnes Kospal +3
In the classical grouping of large magnitude episodic variability of young accreting stars, FUORs outshine their stars by a factor of 100, and can last for up to centuries;…
Dust Accumulation near the Magnetospheric Truncation of Protoplanetary Discs. II. The Effects of Opacity and Thermal Evolution
Rixin Li, Yi-Xian Chen, Douglas N. C. Lin
Dust trapping in the global pressure bump induced by magnetospheric truncation offers a promising formation mechanism for close-in super-Earths/sub-Neptunes. These planets likely f…
Chaotic Type I Migration in Turbulent Discs
Yinhao Wu, Yi-Xian Chen, Douglas N. C. Lin
By performing global hydrodynamical simulations of accretion discs with driven turbulence models, we demonstrate that elevated levels of turbulence induce highly stochastic migrati…
Wide Dust Gaps in Protoplanetary Disks Induced by Eccentric Planets: A Mass-Eccentricity Degeneracy
Yi-Xian Chen, Zhuoxiao Wang, Ya-Ping Li +2
The tidal perturbation of embedded protoplanets on their natal disks has been widely attributed to be the cause of gap-ring structures in sub-mm images of protoplanetary disks arou…
Planet Population Synthesis
W. Benz, S. Ida, Y. Alibert +2
With the increasing number of exoplanets discovered, statistical properties of the population as a whole become unique constraints on planet formation models provided a link betwee…
External Mass Accumulation onto Core Potentials: Implications for Star Clusters, Galaxies and Galaxy Clusters
J. P. Naiman, Enrico Ramirez-Ruiz, Douglas N. C. Lin
Accretion studies have been focused on the flow around bodies with point mass gravitational potentials, but few general results are available for non-point mass distributions. Here…
On the origin of kinematic distribution of the sub-parsec young stars in the Galactic center
Qingjuan Yu, Youjun Lu, D. N. C. Lin
Within a half-parsec from the Galactic center (GC), there is a population of coeval young stars which appear to reside in a coherent disk. Surrounding this dynamically-cool stellar…