22 citations · 63 across the 9 of their papers we have counts for
9 papers
GW241011 and GW241110: Hints of Hierarchical Mergers from the Merger Entropy Index
Guo-Peng Li, Xi-Long Fan
GW241011 and GW241110 both exhibit extremely asymmetric masses, high primary spins, and significant spin-orbit misalignment, which challenge the formation of first-generation binar…
The Hierarchical Merger Scenario for GW231123
Guo-Peng Li, Xi-Long Fan
GW231123 exhibits exceedingly massive components and high spins, which challenges the formation of first-generation (1G) black holes from stellar collapse and implies that this eve…
The Nature of Gravitational Wave Events with Host Environment Escape Velocities
Guo-Peng Li, Xi-Long Fan
We propose a novel method to probe the parameters and origin channels of gravitational wave events using the escape velocities of their host environments. This method could lead to…
The Use of Binary Black Holes Merging in AGN Disks for Hubble Constant Measurements
Guo-Peng Li, Xi-Long Fan
We study the impact of environmental effects on the measurement of the Hubble constant () from gravitational wave (GW) observations of binary black hole mergers residing in ac…
Multimessenger hierarchical triple merger gravitational-wave event pair GW190514-GW190521 inside AGN J124942.3 + 344929
Guo-Peng Li, Xi-Long Fan
There is a candidate electromagnetic (EM) counterpart to the binary black hole merger GW190521, identified as ZTF19abanrhr within active galactic nuclei (AGN) J124942.3 + 344929. A…
The origin channels of hierarchical binary black hole mergers in the LIGO-Virgo-KAGRA O1, O2, and O3 runs
Guo-Peng Li, Xi-Long Fan
We infer the origin channels of hierarchical mergers observed in the LIGO-Virgo-KAGRA (LVK) O1, O2, and O3 runs using a hierarchical Bayesian analysis under a parametric population…
Comparing hierarchical black hole mergers in star clusters and active galactic nuclei
Guo-Peng Li, Da-Bin Lin, Yong Yuan
Star clusters (SCs) and active galactic nuclei (AGNs) are promising sites for the occurrence of hierarchical black hole (BH) mergers. We use simple models to compare hierarchical B…
Constraining hierarchical mergers of binary black holes detectable with LIGO-Virgo
Guo-Peng Li
Most of the binary black hole (BBH) mergers detected by LIGO and Virgo could be explained by first-generation mergers formed from the collapse of stars, while others might come fro…
Time-dependent stellar-mass binary black hole mergers in AGN disks: Mass distribution of hierarchical mergers
Guo-Peng Li
There is much debate about the channels for astrophysical origins of the stellar-mass binary black hole (BBH) mergers detected by LIGO and Virgo. Active galactic nuclei (AGNs) are…