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A tidal disruption event (TDE) occurs when a star passes within the tidal radius of a supermassive black hole (SMBH). In TDEs it is expected that the orbital angular momentum of the disrupted star is generally misaligned with the SMBH spin…

高能天体物理现象 · 物理学 2026-04-29 Jin-Hong Chen , Lixin Dai , Kan Cheuk Kwan , Tom Man Kwan , Zijian Zhang

We have constructed self-similar models of a time-dependent accretion disk in both sub and super-Eddington phases with wind outflows for tidal disruption events (TDEs). The physical input parameters are the black hole (BH) mass…

高能天体物理现象 · 物理学 2020-08-21 T. Mageshwaran , A. Mangalam

The study of the evolution of X-ray spectra in tidal disruption events (TDEs) is an important approach for understanding the physical processes occurring near a supermassive black hole. Observations show that the X-ray spectra of TDEs are…

高能天体物理现象 · 物理学 2026-03-12 Wei Chen , Erlin Qiao

Radio flares from tidal disruption events (TDEs) are generally interpreted as synchrotron emission arising from the interaction of an outflow with the surrounding circumnuclear medium (CNM). We generalize the common equipartition analysis…

高能天体物理现象 · 物理学 2021-09-07 Tatsuya Matsumoto , Tsvi Piran

When a star gets too close to a supermassive black hole, it is torn apart by the tidal forces. Roughly half of the stellar mass becomes unbound and flies away at tremendous velocities - around $10^4$ km/s. In this work we explore the idea…

高能天体物理现象 · 物理学 2019-06-19 Almog Yalinewich , Elad Steinberg , Tsvi Piran , Julian H. Krolik

We present continued radio and X-ray observations of the previously relativistic tidal disruption event (TDE) Swift J164449.3+573451 (\sw) extending to about 9.4 years post disruption, as part of ongoing campaigns with the Jansky Very Large…

高能天体物理现象 · 物理学 2021-02-24 Yvette Cendes , Tarraneh Eftekhari , Edo Berger , Emil Polisensky

We perform a comprehensive study of the X-ray emission from 70 transient sources which have been classified as a tidal disruption event (TDE) in the literature. We explore the properties of these candidates using nearly three decades of…

高能天体物理现象 · 物理学 2017-04-12 Katie Auchettl , James Guillochon , Enrico Ramirez-Ruiz

The short-term X-ray variability of tidal disruption events (TDEs) and its similarities with active galactic nuclei (AGN) are poorly understood. In this work, we show the diversity of TDE's short-term X-ray variability, and take Swift…

高能天体物理现象 · 物理学 2021-10-20 Chichuan Jin

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…

高能天体物理现象 · 物理学 2022-03-14 Thomas Hong Tsun Wong , Hugo Pfister , Lixin Dai

An origin of the Optical/UV radiation from tidal disruption events (TDEs) has recently been discussed for different scenarios, but observational support is generally missing. In this Letter, we test applicability of the `Wind-Driven model'…

高能天体物理现象 · 物理学 2020-12-16 Kohki Uno , Keiichi Maeda

We present radio observations of 23 optically discovered tidal disruption events (TDEs) on timescales of 500-3200 days post discovery. We detect nine new TDEs that did not have detectable radio emission at earlier times, indicating a…

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

Tidal disruption events (TDEs) are believed to be an ideal laboratory for studying the evolution of accretion flow around a supermassive black hole (BH). In general, the mass feeding rate to the BH is suggested to be super-Eddington…

高能天体物理现象 · 物理学 2026-01-21 Chenlei Guo , Erlin Qiao

A tidal disruption event (TDE) occurs when a star travels too close to a supermassive black hole. In some cases, accretion of the disrupted material onto the black hole launches a relativistic jet. In this paper, we present a long term…

Rates of stellar tidal disruption events (TDEs) by supermassive black holes (SMBHs) due to two-body relaxation are calculated using a large galaxy sample (N=146) in order to explore the sensitivity of the TDE rates to observational…

高能天体物理现象 · 物理学 2016-02-26 Nicholas C. Stone , Brian D. Metzger

The classical radiation pressure instability has been a persistent theoretical feature of thin, radiatively efficient accretion disks with accretion rates 1 to 100 per cent of the Eddington rate. But there is only limited evidence of its…

高能天体物理现象 · 物理学 2023-07-05 Karamveer Kaur , Nicholas C. Stone , Shmuel Gilbaum

We report the observation of nonexponential decay of pulsed microwave transmission through quasi-one-dimensional random dielectric media that signals the breakdown of the diffusion model of transport for temporally coherent extended waves.…

无序系统与神经网络 · 物理学 2009-11-07 A. A. Chabanov , Z. Q. Zhang , A. Z. Genack

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…

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

In this paper we develop a computationally efficient, two-population, time-dependent Fokker-Plank approach in the two dimensions of energy and angular momentum to study the rates of tidal disruption events (TDEs), extreme mass ratio…

星系天体物理 · 物理学 2022-06-08 Luca Broggi , Elisa Bortolas , Matteo Bonetti , Alberto Sesana , Massimo Dotti

In this work, we use the Jansky VLA Sky Survey (VLASS) to compile the first sample of six radio-selected tidal disruption events (TDEs) with transient optical counterparts. While we still lack the statistics to do detailed population…