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As the sensitivity of gravitational wave (GW) instruments improves and new networks start operating, hundreds of merging stellar-mass black holes (SBHs) and intermediate-mass black holes (IMBHs) are expected to be observed in the next few…

星系天体物理 · 物理学 2020-11-18 Giacomo Fragione , Rosalba Perna , Abraham Loeb

Tidal disruption events (TDEs) offer a unique probe of supermassive black hole (SMBH) demographics, but their observed rates remain difficult to reconcile with standard single-SMBH models. In this work, we use simulations of SMBH binaries,…

星系天体物理 · 物理学 2025-07-14 Denyz Melchor , Smadar Naoz , Suvi Gezari , Brenna Mockler

We present the optical light curves of the tidal disruption event (TDE) AT 2023clx in the declining phase, observed with Mephisto. Combining our light curve with the ASAS-SN and ATLAS data in the rising phase, and fitting the composite…

高能天体物理现象 · 物理学 2024-08-09 Shiyan Zhong , Xian Xu , Xinlei Chen , Helong Guo , Yuan Fang , Guowang Du , Xiangkun Liu , Xiaowei Liu

Tidal Disruption Events (TDEs) are processes where stars are torn apart by the strong gravitational force near to a massive or supermassive black hole. If a jet is launched in such a process, particle acceleration may take place in internal…

高能天体物理现象 · 物理学 2019-07-15 Daniel Biehl , Denise Boncioli , Cecilia Lunardini , Walter Winter

Close encounters between stellar-mass black holes (BHs) and stars occur frequently in dense star clusters and in the disks of active galactic nuclei (AGNs). Recent studies have shown that in highly eccentric close encounters, the star can…

高能天体物理现象 · 物理学 2023-03-24 Chengcheng Xin , Zoltan Haiman , Rosalba Perna , Yihan Wang , Taeho Ryu

This paper introduces a series of papers presenting a quantitative theory for the tidal disruption of main sequence stars by supermassive black holes. Using fully general relativistic hydrodynamics simulations and MESA-model initial…

高能天体物理现象 · 物理学 2020-12-02 Taeho Ryu , Julian Krolik , Tsvi Piran , Scott C. Noble

The tidal disruption event (TDE) AT2018fyk has unusual X-ray, UV, and optical light curves that decay over the first $\sim$600d, rebrighten, and decay again around 1200d. We explain this behavior as a one-off TDE associated with a massive…

高能天体物理现象 · 物理学 2024-07-30 S. Wen , P. G. Jonker , A. J. Levan , D. Li , N. C. Stone , A. I. Zabludoff , Z. Cao , T. Wevers , D. R. Pasham , C. Lewin , E. Kara

Tidal disruption events (TDEs) take place when a star ventures too close to a supermassive black hole (SMBH) and becomes ruptured. One of the leading proposed physical mechanisms often invoked in the literature involves weak two-body…

星系天体物理 · 物理学 2023-06-16 Denyz Melchor , Brenna Mockler , Smadar Naoz , Sanaea Rose , Enrico Ramirez-Ruiz

We run a suite of hydrodynamics simulations of tidal disruption events (TDEs) of a white dwarf (WD) by a black hole (BH) with a wide range of WD/BH masses and orbital parameters. We implement nuclear reactions to study nucleosynthesis and…

高能天体物理现象 · 物理学 2018-04-25 Kojiro Kawana , Ataru Tanikawa , Naoki Yoshida

Tidal disruption events (TDEs) occur when stars are destroyed by supermassive black holes and are among the brightest nuclear transients. It has been thought that strong relativistic effects rapidly dissipate orbital energy and produce…

高能天体物理现象 · 物理学 2026-05-05 Ho-Sang Chan , Taeho Ryu , Julian Krolik , Tsvi Piran

We present the first simulations of the tidal disruption of stars with realistic structures and compositions by massive black holes (BHs). We build stars in the stellar evolution code MESA and simulate their disruption in the 3D…

高能天体物理现象 · 物理学 2019-10-17 Jamie Law-Smith , James Guillochon , Enrico Ramirez-Ruiz

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…

高能天体物理现象 · 物理学 2023-09-14 Zsófia V. Kovács-Stermeczky , József Vinkó

Tidal disruption event (TDE) light curves are increasingly used to infer the masses of quiescent supermassive black holes ($M_{\rm{BH}}$), offering a powerful probe of low-mass black hole demographics independent of host-galaxy scaling…

Tidal disruption events (TDEs) can uncover the quiescent supermassive black holes (SMBHs) at the center of galaxies. After the disruption of a star by a SMBH, the highly elliptical orbit of the debris stream will be gradually circularized…

高能天体物理现象 · 物理学 2023-09-08 Jin-Hong Chen , Li-Ming Dou , Rong-Feng Shen

Stars orbiting supermassive black holes can generate recurring accretion flares in repeating partial tidal disruption events (TDEs). Here we develop an efficient formalism for analyzing the time-dependent response of a star to the removal…

高能天体物理现象 · 物理学 2025-05-20 Ananya Bandopadhyay , Eric R. Coughlin , C. J. Nixon

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 33 TDEs is constructed using the Zwicky Transient Facility…

Tidal disruption of stars in dense nuclear star clusters containing supermassive central black holes (SMBH) is modeled by high-accuracy direct N-body simulation. Stars getting too close to the SMBH are tidally disrupted and a tidal…

星系天体物理 · 物理学 2022-07-20 Shiyan Zhong , Shuo Li , Peter Berczik , Rainer Spurzem

Tidal disruption events (TDEs) of stars by single or binary supermassive black holes (SMBHs) brighten galactic nuclei and reveal a population of otherwise dormant black holes. Adopting event rates from the literature, we aim to establish…

高能天体物理现象 · 物理学 2017-08-30 Anastasia Fialkov , Abraham Loeb

Accretion onto black holes is an efficient mechanism in converting the gas mass-energy into energetic outputs as radiation, wind and jet. Tidal disruption events, in which stars are tidally torn apart and then accreted onto supermassive…

高能天体物理现象 · 物理学 2021-01-14 Jane Lixin Dai , Giuseppe Lodato , Roseanne M. Cheng

Tidal disruptions of stars by supermassive black holes produce multi-wavelength emission, of which the optical emission is of ambiguous origin. A unification scenario of tidal disruption events (TDEs) has been proposed to explain the…