296 citations · 1k across the 27 of their papers we have counts for
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Delayed Radio Flares in Tidal Disruption Events from Star-Disk Collision Outflows
Itai Linial, Brian D. Metzger, Andrei M. Beloborodov
A growing fraction of tidal disruption events (TDEs) exhibit radio emission that rises only years after the optical or infrared flare, indicating delayed outflow activity. In some…
Electromagnetic Follow-up of the Sub-Solar Mass Gravitational Wave Candidate S251112cm: Kilonova Constraints and a Coincident IIb Supernova
Xander J. Hall, Tomas Ahumada, Julius Gassert +25
On November 12th, 2025 the LIGO--Virgo--KAGRA (LVK) collaboration reported gravitational waves (GWs) from a compact object merger candidate (S251112cm) with at least one sub-solar…
Circumbinary Discs as the Origin of Circumstellar Material around Interacting H-poor Supernovae and Fast Blue Optical Transients
Ryotaro Chiba, Semih Tuna, Brian D. Metzger +1
Around 10 % of hydrogen-poor supernovae explode inside compact ( cm), massive () circumstellar material (CSM), signalling an episode of e…
Quantifying the impact of relativistic precession on tidal disruption event light curves
Diego Calderón, Ondřej Pejcha, Brian D. Metzger +2
The tidal field of a black hole can turn a star into a gas stream whose orbit can precess, especially if the a black hole is rapidly spinning. In this work, we investigate the impa…
Relativistic jets from millisecond proto-magnetars
Dhruv K. Desai, Luciano Combi, Daniel M. Siegel +1
Rapidly rotating, strongly magnetized neutron stars (``millisecond proto-magnetars'') formed in stellar core-collapse, neutron star mergers, and white dwarf accretion-induced colla…
Super-Eddington Chimneys: On the Cooling Evolution of Tidal Disruption Event Envelopes
Semih Tuna, Brian D. Metzger, Yan-Fei Jiang +1
The formation of a compact accretion disk following a tidal disruption event (TDE) requires that the shocked stellar debris cool efficiently as it settles toward the black hole. Wh…
Tidal disruption event Calorimetry: Observational constraints on the physics of TDE optical flares
Andrew Mummery, Brian Metzger, Sjoert van Velzen +1
Tidal disruption events are routinely discovered as bright optical/UV flares, the properties of which are now well categorized on the population level. The underlying physical proc…
EP241217a: a likely Type II GRB with an achromatic bump at z = 4.59
Hao Zhou, Jia Ren, Chen-Wei Wang +22
EP241217a is an X-ray transient detected by the Einstein Probe (EP) lasting for about 100 seconds and without accompanying -ray detection. The optical spectroscopy reveals the r…
Multiple outflows and delayed ejections revealed by early imaging of novae
Elias Aydi, John D. Monnier, Antoine Mérand +39
Novae are thermonuclear eruptions on accreting white dwarfs in interacting binaries. Although most of the accreted envelope is expelled, the mechanism -- impulsive ejection, multip…
Luminous Fast Blue Optical Transients as "Failed" Gravitational-wave Sources: Helium CoreBlack Hole Mergers Following Delayed Dynamical Instability
Jakub Klencki, Brian D. Metzger
Binaries in which a massive donor star undergoes an extended ( kyr) phase of stable mass transfer onto a black hole (BH) accretor offer a promising channel for creating LI…
No Sign of a Magnetar Remnant Following the Kilonova-Producing Long GRB 211211A Years Later
Genevieve Schroeder, Ben Margalit, Brian D. Metzger +9
In addition to a -ray burst (GRB), the merger of two neutron stars may produce a temporarily or indefinitely stable neutron star remnant with a strong magnetic field (a "magneta…
Jet-driven explosion of an accretion-induced white-dwarf collapse via a magnetorotational dynamo
Luciano Combi, Daniel M. Siegel, Brian D. Metzger
The accretion-induced collapse (AIC) of a rotating white dwarf (WD) offers a potential site of millisecond pulsars/magnetars, gamma-ray bursts, and r-process nucleosynthesis. We pr…
Gravitational Instability and Fragmentation in Collapsar Disks Supports the Formation of Sub-Solar Neutron Stars
Yi-Xian Chen, Brian D. Metzger
We perform three-dimensional shearing-box hydrodynamical simulations to explore the outcome of gravitational instability in the outer regions of neutrino-cooled disks such as those…
Suppression of Shock X-ray Emission in Novae from Turbulent Mixing with Cool Gas
Brian D. Metzger, Lachlan Lancaster, Rebecca Diesing
Shock interaction in classical novae occurs when a fast outflow from the white dwarf > 1000 km s/s collides with a slower, cooler shell of gas released earlier in the outburst. The…
QPEs from EMRI Debris Streams Impacting Accretion Disks in Galactic Nuclei
Itai Linial, Brian D. Metzger, Eliot Quataert
Quasi-periodic eruption (QPE) sources in galactic nuclei are often associated with a stellar object orbiting a supermassive black hole with hours-days period, brought in as an extr…
Ignition of weak interactions and r-process outflows in super-collapsar accretion disks
Aman Agarwal, Daniel M. Siegel, Brian D. Metzger +1
The collapse of rotating massive (~) stars resulting in hyperaccreting black holes (BHs; "collapsars") is a leading model for the central engines of long-duration gamma…
Time-Dependent Radiation Transport Simulations of Infrared Echoes from Dust-Shrouded Luminous Transients
Semih Tuna, Brian D. Metzger, Yan-Fei Jiang +1
A wide range of stellar explosions, including supernovae (SNe), tidal disruption events (TDE), and fast blue optical transients (FBOT), can occur in dusty environments initially op…
Radiation Transport Simulations of Quasi-Periodic Eruptions from Star-Disk Collisions
Indrek Vurm, Itai Linial, Brian D. Metzger
Periodic collisions between a star on an inclined orbit around a supermassive black hole and its accretion disk offers a promising explanation for X-ray "quasi-periodic eruptions"…
Fragmentation in Gravitationally-Unstable Collapsar Disks and Sub-Solar Neutron Star Mergers
Brian D. Metzger, Lam Hui, Matteo Cantiello
Although stable neutron stars (NS) can in principle exist down to masses Mns ~ 0.1Msun, standard models of stellar core-collapse predict a robust lower limit Mns >~ 1.2Msun, roughl…
Coupled Disk-Star Evolution in Galactic Nuclei and the Lifetimes of QPE Sources
Itai Linial, Brian D. Metzger
A modest fraction of the stars in galactic nuclei fed towards the central supermassive black hole (SMBH) approach on low-eccentricity orbits driven by gravitational-wave radiation…
The effect of relativistic precession on light curves of tidal disruption events
Diego Calderón, Ondřej Pejcha, Brian D. Metzger +1
The disruption of a star by the tidal forces of a spinning black hole causes the stellar stream to precess affecting the conditions for triggering the tidal disruption event (TDE).…
On stellar-mass black hole mergers in AGN disks detectable with LIGO
B. McKernan, K. E. S. Ford, J. Bellovary +9
Black hole mergers detectable with LIGO can occur in active galactic nucleus (AGN) disks. Here we parameterize the merger rates, the mass spectrum and the spin spectrum of black ho…
The effects of r-process heating on fall-back accretion in compact object mergers
B. D. Metzger, A. Arcones, E. Quataert +1
We explore the effects of r-process nucleosynthesis on fall-back accretion in neutron star(NS)-NS and black hole-NS mergers, and the resulting implications for short-duration gamma…
Magnetized Relativistic Jets and Long-Duration GRBs from Magnetar Spindown during Core-Collapse Supernovae
N. Bucciantini, E. Quataert, B. D. Metzger +3
We use ideal axisymmetric relativistic magnetohydrodynamic simulations to calculate the spindown of a newly formed millisecond, B ~ 10^{15} G, magnetar and its interaction with the…