Astrophysics - Astrophysics of Galaxies

Changing-Look AGN Behaviour Induced by Disk-Captured Tidal Disruption Events
Recent observations of changing-look active galactic nuclei (AGN) hint at a frequency of accretion activity not fully explained by …
Yihan Wang, Douglas N.~C. Lin, Bing Zhang, Zhaohuan Zhu
Cite DOI arXiv
Changing-Look AGN Behaviour Induced by Disk-Captured Tidal Disruption Events
Effective two-body scatterings around a massive object
Yihan Wang, Saavik Ford, Rosalba Perna, Barry McKernan, Zhaohuan Zhu, Bing Zhang
Cite DOI arXiv
Stellar/BH Population in AGN Disks: Direct Binary Formation from Capture Objects in Nuclei Clusters
The Active Galatic Nuclei(AGN) disk has been proposed as a potential channel for the merger of binary black holes. The population of …
Yihan Wang, Zhaohuan Zhu, Douglas N.~C. Lin
Cite DOI arXiv
Stellar/BH Population in AGN Disks: Direct Binary Formation from Capture Objects in Nuclei Clusters
Close encounters of stars with stellar-mass black hole binaries
Taeho Ryu, Rosalba Perna, Yi-Han Wang
Cite DOI arXiv
Host galaxies and electromagnetic counterparts to binary neutron star mergers across the cosmic time: detectability of GW170817-like events
Rosalba Perna, M. Celeste Artale, Yi-Han Wang, Michela Mapelli, Davide Lazzati, Cecilia Sgalletta, Filippo Santoliquido
Cite DOI arXiv
Hot Jupiter formation in dense clusters: secular chaos in multiplanetary systems
Yi-Han Wang, Rosalba Perna, Nathan W.~C. Leigh, Michael M. Shara
Cite DOI arXiv
Partial tidal disruption events by stellar mass black holes: Gravitational instability of stream and impact from remnant core
In dense star clusters, such as globular and open clusters, dynamical interactions between stars and black holes (BHs) can be …
Yi-Han Wang, Rosalba Perna, Philip J. Armitage
Cite DOI arXiv
Partial tidal disruption events by stellar mass black holes: Gravitational instability of stream and impact from remnant core
Hot Jupiter and Ultra-cold Saturn Formation in Dense Star Clusters
The discovery of high incidence of hot Jupiters in dense clusters challenges the field-based hot Jupiter formation theory. In dense …
Yi-Han Wang, Nathan W.~C. Leigh, Rosalba Perna, Michael M. Shara
Cite DOI arXiv
Hot Jupiter and Ultra-cold Saturn Formation in Dense Star Clusters
Planetary architectures in interacting stellar environments
Yi-Han Wang, Rosalba Perna, Nathan W.~C. Leigh
Cite DOI arXiv
Giant Planet Swaps during Close Stellar Encounters
Yi-Han Wang, Rosalba Perna, Nathan W.~C. Leigh
Cite DOI arXiv