144 citations · 950 across the 30 of their papers we have counts for
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Implications of the UV/optical Plateau of AT2018cow
Wenbin Lu, Anthony L. Piro
AT2018cow, the prototypical luminous fast blue optical transient (LFBOT), shows a slowly fading plateau in the UV/optical light lasting at least 5 years after the explosion. The pl…
Multi-year Polarimetric Monitoring of Four CHIME-Discovered Repeating Fast Radio Bursts with FAST
Yi Feng, Yong-Kun Zhang, Jintao Xie +50
In this study, we report multi-year polarization measurements of four repeating FRBs initially discovered by CHIME: FRBs~20190117A, 20190208A, 20190303A, and 20190417A. We observed…
EP240414a: Off-axis View of a Jet-Cocoon System from an Expanded Progenitor Star
Jian-He Zheng, Jin-Ping Zhu, Wenbin Lu +1
When a relativistic jet is launched following the core-collapse of a star, its interaction with the stellar envelope leads to the formation of a hot cocoon, which produces various…
Star-Disk Collisions: Implications for Quasi-periodic Eruptions and Other Transients Near Supermassive Black Holes
Philippe Z. Yao, Eliot Quataert, Yan-Fei Jiang +2
We use Athena++ to study the hydrodynamics of repeated star-accretion disk collisions close to supermassive black holes, and discuss their implications for the origin of quasi-peri…
Characterization of the Repeating FRB 20220912A with the Allen Telescope Array
Sofia Z. Sheikh, Wael Farah, Alexander W. Pollak +17
FRB 20220912A is a repeating Fast Radio Burst (FRB) that was discovered in Fall 2022 and remained highly active for several months. We report the detection of 35 FRBs from 541 hour…
Misaligned precessing jets are choked by the accretion disk wind
Wenbin Lu, Tatsuya Matsumoto, Christopher D. Matzner
We analytically and numerically study the hydrodynamic propagation of a precessing jet in the context of tidal disruption events (TDEs) where the star's angular momentum is misalig…
Constraints on the narrow-line region of the X-ray quasi-periodic eruption source GSN 069
Kishore C. Patra, Wenbin Lu, Yilun Ma +4
The origins of quasi-periodic eruptions (QPEs) are poorly understood, although most theoretical explanations invoke an accretion disk around a supermassive black hole. The gas and…
The On-axis Jetted Tidal Disruption Event AT2022cmc: X-ray Observations and Broadband Spectral Modeling
Yuhan Yao, Wenbin Lu, Fiona Harrison +5
AT2022cmc was recently reported as the first on-axis jetted tidal disruption event (TDE) discovered in the last decade, and the fourth on-axis jetted TDE candidate known so far. In…
Tidal Disruption Event Demographics with the Zwicky Transient Facility: Volumetric Rates, Luminosity Function, and Implications for the Local Black Hole Mass Function
Yuhan Yao, Vikram Ravi, Suvi Gezari +26
We conduct a systematic tidal disruption event (TDE) demographics analysis using the largest sample of optically selected TDEs. A flux-limited, spectroscopically complete sample of…
A very luminous jet from the disruption of a star by a massive black hole
Igor Andreoni, Michael W. Coughlin, Daniel A. Perley +78
Tidal disruption events (TDEs) are bursts of electromagnetic energy released when supermassive black holes (SMBHs) at the centers of galaxies violently disrupt a star that passes t…
Hard X-ray Observations of the Hydrogen-poor Superluminous Supernova SN 2018hti with NuSTAR
Igor Andreoni, Wenbin Lu, Brian Grefenstette +3
Some Hydrogen-poor superluminous supernovae are likely powered by a magnetar central engine, making their luminosity larger than common supernovae. Although a significant amount of…
Optical measurement of superluminal motion in the neutron-star merger GW170817
Kunal P. Mooley, Jay Anderson, Wenbin Lu
The afterglow of the binary neutron star merger GW170817 gave evidence for a structured relativistic jet and a link between such mergers and short gamma-ray bursts. Superluminal mo…
Quasi-periodic eruptions from mildly eccentric unstable mass transfer in galactic nuclei
Wenbin Lu, Eliot Quataert
We propose that the recently observed quasi-periodic eruptions (QPEs) in galactic nuclei are produced by unstable mass transfer due to Roche lobe overflow of a low-mass main-sequen…
Prospects for Detecting Fast Radio Bursts in Globular Clusters of Nearby Galaxies
Kyle Kremer, Dongzi Li, Wenbin Lu +2
The recent detection of a repeating fast radio burst (FRB) in an old globular cluster in M81 challenges traditional FRB formation mechanisms based on magnetic activity in young neu…
A luminous fast radio burst that probes the Universe at redshift 1
Stuart D. Ryder, Keith W. Bannister, S. Bhandari +18
Fast radio bursts (FRBs) are millisecond-duration pulses of radio emission originating from extragalactic distances. Radio dispersion on each burst is imparted by intervening plasm…
Propagation of Alfvén waves in the charge starvation regime
Pawan Kumar, Ramandeep Gill, Wenbin Lu
We present numerical simulation results for the propagation of Alfvén waves in the charge starvation regime. This is the regime where the plasma density is below the critical value…
Late-time accretion in neutron star mergers: implications for short gamma-ray bursts and kilonovae
Wenbin Lu, Eliot Quataert
We study the long-term (t >> 10 s) evolution of the accretion disk after a neutron star(NS)-NS or NS-black hole merger, taking into account the radioactive heating by r-process nuc…
Spectropolarimetry of the tidal disruption event AT 2019qiz: a quasispherical reprocessing layer
Kishore C. Patra, Wenbin Lu, Thomas G. Brink +3
We present optical spectropolarimetry of the tidal disruption event (TDE) AT 2019qiz on days and relative to maximum brightness. Continuum polarization, which informs th…
The Tidal Disruption Event AT2021ehb: Evidence of Relativistic Disk Reflection, and Rapid Evolution of the Disk-Corona System
Yuhan Yao, Wenbin Lu, Muryel Guolo +29
We present X-ray, UV, optical, and radio observations of the nearby ( Mpc) tidal disruption event (TDE) AT2021ehb/ZTF21aanxhjv during its first 430 days of evolution. AT…
On rapid binary mass transfer -- I. Physical model
Wenbin Lu, Jim Fuller, Eliot Quataert +1
In some semi-detached binary systems, the donor star may transfer mass to the companion at a very high rate. We propose that, at sufficiently high mass-transfer rates such that the…
Temporal Scattering, Depolarization, and Persistent Radio Emission from Magnetized Inhomogeneous Environments Near Repeating Fast Radio Burst Sources
Yuan-Pei Yang, Wenbin Lu, Yi Feng +2
Some repeating fast radio burst (FRB) sources exhibit complex polarization behaviors, including frequency-dependent depolarization, variation of rotation measure (RM), and oscillat…
Frequency-dependent polarization of repeating fast radio bursts-implications for their origin
Yi Feng, Di Li, Yuan-Pei Yang +23
The polarization of fast radio bursts (FRBs), bright astronomical transients, contains crucial information about their environments. We report polarization measurements of five rep…
The spins of compact objects born from helium stars in binary systems
Jim Fuller, Wenbin Lu
The angular momentum (AM) content of massive stellar cores helps to determine the natal spin rates of neutron stars and black holes. Asteroseismic measurements of low-mass stars ha…
Hydrodynamics of Collisions and Close Encounters between Stellar Black Holes and Main-sequence Stars
Kyle Kremer, James C. Lombardi, Wenbin Lu +2
Recent analyses have shown that close encounters between stars and stellar black holes occur frequently in dense star clusters. Depending upon the distance at closest approach, the…