activity
20082026
most citedOn stellar-mass black hole mergers in AGN disks detectable with LIGO

296 citations · 1k across the 27 of their papers we have counts for

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13 papers · 1 filter

astro-ph.HE2025★ 2 cited

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…

astro-ph.IM2025

Dynamical binary interactions in the 2040s

Nadejda Blagorodnova, Ondřej Pejcha, Tomek Kamiński +15

Dynamical binary interactions such as common envelope (CE) evolution or stellar mergers are a critical phase in the formation of a wide variety of binary phenomena, ranging from bl…

astro-ph.HE2025★ 3 cited

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…

astro-ph.HE2025★ 1 cited

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…

astro-ph.HE2025★ 3 cited

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…

astro-ph.HE2025★ 3 cited

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…

astro-ph.HE2025★ 1 cited

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…

astro-ph.HE2025

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…

astro-ph.HE2025

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…

astro-ph.HE2025

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…

astro-ph.HE2025★ 19 cited

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…

astro-ph.HE2025

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…

astro-ph.HE2025

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…