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We present hydrodynamic simulations with the moving-mesh code AREPO of Tidal Disruption Encores (TDEEs) in nuclear star clusters (NSCs). TDEEs arise when a stellar-mass black hole (sBH) disrupts a star within the NSC, producing debris that…

High Energy Astrophysical Phenomena · Physics 2026-02-02 Ian P. A. Johnson , Taeho Ryu , Rosalba Perna

During a stellar tidal disruption event (TDE), an accretion disk forms as stellar debris returns to the disruption site and circularizes. Rather than being confined within the circularizing radius, the disk can spread to larger radii to…

High Energy Astrophysical Phenomena · Physics 2014-03-11 Rong-Feng Shen , Christopher D. Matzner

After the Tidal Disruption Event (TDE) of a star around a SuperMassive Black Hole (SMBH), if the stellar debris stream rapidly circularizes and forms a compact disk, the TDE emission is expected to peak in the soft X-ray or far Ultra-Violet…

High Energy Astrophysical Phenomena · Physics 2020-11-11 J. J. Zanazzi , Gordon I. Ogilvie

Tidal disruption events (TDEs) are valuable probes of the demographics of supermassive black holes as well as the dynamics and population of stars in the centers of galaxies. In this Letter, we focus on studying how the debris disk…

High Energy Astrophysical Phenomena · Physics 2022-03-14 Thomas Hong Tsun Wong , Hugo Pfister , Lixin Dai

Tidal disruption events (TDEs) can uncover the quiescent black holes (BHs) at the center of galaxies and also offer a promising method to study them. In a partial TDE (PTDE), the BH's tidal force cannot fully disrupt the star, so the…

High Energy Astrophysical Phenomena · Physics 2023-09-08 Jin-Hong Chen , Rong-Feng Shen

The tidal force from a supermassive black hole can rip apart a star that passes close enough in what is known as a Tidal Disruption Event. Typically half of the destroyed star remains bound to the black hole and falls back on highly…

High Energy Astrophysical Phenomena · Physics 2019-02-27 Elen Golightly , Eric Coughlin , Chris Nixon

When a star approaches a black hole closely, it may be pulled apart by gravitational forces in a tidal disruption event (TDE). The flares produced by TDEs are unique tracers of otherwise quiescent supermassive black holes (SMBHs) located at…

High Energy Astrophysical Phenomena · Physics 2019-05-17 Felipe G. Goicovic , Volker Springel , Sebastian T. Ohlmann , Ruediger Pakmor

Observational evidence suggests that the majority of stars may have been born in stellar clusters or associations. Within these dense environments, dynamical interactions lead to high rates of close stellar encounters. A variety of recent…

High Energy Astrophysical Phenomena · Physics 2021-04-28 Kyle Kremer , Wenbin Lu , Anthony L. Piro , Sourav Chatterjee , Frederic A. Rasio , Claire S. Ye

This work explores a scenario for micro-tidal disruption events (TDEs) triggered by close encounters between high-speed white dwarfs (WDs) and stellar-mass black holes (sBHs) in galactic centers. In this model, a WD orbiting the central…

High Energy Astrophysical Phenomena · Physics 2025-12-09 Xinyu Li , Houyi Sun , Yuan-Chuan Zou , Huan Yang

Most massive galaxies are thought to contain a supermassive black hole in their centre surrounded by a tenuous gas environment, leading to no significant emission. In these quiescent galaxies, tidal disruption events represent a powerful…

High Energy Astrophysical Phenomena · Physics 2016-10-07 Clément Bonnerot , Elena M. Rossi , Giuseppe Lodato

We have carried out general relativistic particle simulations of stars tidally disrupted by massive black holes. When a star is disrupted in a bound orbit with moderate eccentricity instead of a parabolic orbit, the temporal behavior of the…

High Energy Astrophysical Phenomena · Physics 2015-06-15 Lixin Dai , Andres Escala , Paolo Coppi

A Tidal Disruption Event (TDE) occurs when a supermassive black hole tidally disrupt a nearby passing star. The fallback accretion rate of the disrupted star may exceed the Eddington limit, which induces a supersonic outflow and a burst of…

High Energy Astrophysical Phenomena · Physics 2023-09-14 Zsófia V. Kovács-Stermeczky , József Vinkó

Stars approaching supermassive black holes can be tidally disrupted. Despite being expected to emit X-rays, TDEs have been largely observed in optical bands, which is poorly understood. In this Letter, we simulate the tidal disruption of a…

High Energy Astrophysical Phenomena · Physics 2024-02-29 Fangyi , Hu , Daniel J. Price , Ilya Mandel

Tidal disruption events (TDEs) occur when a star is disrupted by the tidal forces of a supermassive black hole, and these events produce bright multi-wavelength flares. Polarimetric measurements of TDEs allow us to disentangle the geometry…

A tidal disruption event (TDE) occurs when a supermassive black hole rips apart a passing star. Part of the stellar material falls toward the black hole, forming an accretion disk that in some cases launches a relativistic jet. We performed…

We study tidal disruption events (TDEs) and compact object inspirals in nuclear star clusters (NSCs) hosting a central supermassive black hole (SMBH), focusing on their role in SMBH growth. Using the STARDISK version of the direct N-body…

Astrophysics of Galaxies · Physics 2026-02-10 Philip Cho , Kai Wu , Francesco Flammini Dotti , Taras Panamarev , Rainer Spurzem

When an object is scattered near a supermassive black hole (SMBH), tidal oscillations excited within it reduce its orbital energy, leading to capture by the SMBH. This process, called tidal capture, can also occur when the object approaches…

High Energy Astrophysical Phenomena · Physics 2026-03-04 Di Wang , Fa-Yin Wang

We report simulations regarding tidal disruption clouds orbiting spherically symmetric compact boson stars in two different regimes. First we consider clouds in three different bound orbits close to the boson star and analyze the mechanisms…

High Energy Astrophysical Phenomena · Physics 2021-06-18 Matheus C. Teodoro , Lucas G. Collodel , Jutta Kunz

A tidal disruption event (TDE) may occur when a star is torn apart by the tidal force of a black hole (BH). Eventually, an accretion disc is thought to form out of stellar debris falling back towards the BH. If the star's orbital angular…

High Energy Astrophysical Phenomena · Physics 2024-05-14 Z. Cao , P. G. Jonker , D. R. Pasham , S. Wen , N. C. Stone , A. I. Zabludoff

Tidal Disruption Events (TDEs) have long been hypothesized as valuable indicators of black holes, offering insight into their demographics and behaviour out to high redshift. TDEs have also enabled the discovery of a few Massive Black Holes…

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