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Tidal disruption events (TDEs) are powerful probes of supermassive black hole (SMBH) properties and accretion physics. The existing light curve fitting tools assume that the disrupted stars are on parabolic orbits, which may introduce…

High Energy Astrophysical Phenomena · Physics 2026-03-27 Shiyan Zhong , Chenxi Shang , Xiaowei Liu

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,…

Astrophysics of Galaxies · Physics 2025-07-14 Denyz Melchor , Smadar Naoz , Suvi Gezari , Brenna Mockler

The cooling envelope model for tidal disruption events (TDE) postulates that while the stellar debris streams rapidly dissipate their bulk kinetic energy (``circularize"), this does not necessarily imply rapid feeding of the supermassive…

High Energy Astrophysical Phenomena · Physics 2024-01-22 Nikhil Sarin , Brian D. Metzger

Three recent global simulations of tidal disruption events (TDEs) have produced, using different numerical techniques and parameters, very similar pictures of their dynamics. In typical TDEs, after the star is disrupted by a supermassive…

High Energy Astrophysical Phenomena · Physics 2025-03-04 Julian Krolik , Tsvi Piran , Taeho Ryu

Tidal disruption events (TDE) in which a star is devoured by a massive black hole at a galac- tic center pose a challenge to our understanding of accretion processes. Within a month the accretion rate reaches super-Eddington levels. It then…

High Energy Astrophysical Phenomena · Physics 2015-08-19 Tsvi Piran , Aleksander Sadowski , Alexander Tchekhovskoy

The tidal disruption of a star by a massive black hole (MBH) is thought to produce a transient luminous event. Such tidal disruption events (TDEs) may play an important role in the detection and characterization of MBHs and probe the…

Astrophysics of Galaxies · Physics 2016-06-08 Danor Aharon , Alessandra Mastrobuono Battisti , Hagai B. Perets

A star destroyed by the tidal field of a supermassive black hole (SMBH) in a tidal disruption event (TDE) gives rise to a luminous flare. TDEs are being detected at an ever-increasing rate, motivating the need for accurate models of their…

High Energy Astrophysical Phenomena · Physics 2025-07-24 Julia Fancher , 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 events (TDEs) result from stars being gravitationally-scattered into low angular momentum orbits around massive black holes. We show that the short lifetimes of massive Population III stars at high redshifts could…

High Energy Astrophysical Phenomena · Physics 2024-11-19 Thomas H. T. Wong , George M. Fuller

We present a physically-grounded population model for optical tidal disruption events (TDEs) that combines first-principles hydrodynamic simulations of stellar disruption with statistical inference of the underlying stellar and black hole…

High Energy Astrophysical Phenomena · Physics 2026-01-29 Tsvi Piran , Julian Krolik , Taeho Ryu

Tidal disruption events (TDEs) can potentially probe low-mass black holes in host galaxies that might not adhere to bulge or stellar-dispersion relationships. At least initially, TDEs can also reveal super-Eddington accretion. X-ray…

Tidal disruption events (TDEs) provide a unique opportunity to probe the stellar populations around supermassive black holes (SMBHs). By combining light curve modeling with spectral line information and knowledge about the stellar…

High Energy Astrophysical Phenomena · Physics 2022-02-24 Brenna Mockler , Angela A. Twum , Katie Auchettl , Sierra Dodd , K. D. French , Jamie A. P. Law-Smith , Enrico Ramirez-Ruiz

The disruption of a star by a supermassive black hole generates a sudden bright flare. Previous studies have focused on the disruption by single black holes, for which the fallback rate decays as~$\propto t^{-5/3}$. In this paper, we…

High Energy Astrophysical Phenomena · Physics 2018-03-21 Quentin Vigneron , Giuseppe Lodato , Alessio Guidarelli

The tidal disruption of a star by a massive black hole is expected to yield a luminous flare of thermal emission. About two dozen of these stellar tidal disruption flares (TDFs) may have been detected in optical transient surveys. However,…

High Energy Astrophysical Phenomena · Physics 2018-01-11 Sjoert van Velzen

Rates of stellar tidal disruption events (TDEs) around supermassive black holes (SMBHs) have been extensively calculated using the loss cone theory, while theoretical work on TDE rates around intermediate-mass black holes (IMBHs) has been…

High Energy Astrophysical Phenomena · Physics 2025-02-27 Janet N. Y. Chang , Lixin Dai , Hugo Pfister , Rudrani Kar Chowdhury , Priyamvada Natarajan

Tidal disruption events (TDEs) are excellent tools for probing low mass supermassive black holes (SMBHs) that may otherwise remain undetected. Here, we present an extended SMBH--Bulge mass scaling relationship using these lower mass TDE…

Astrophysics of Galaxies · Physics 2025-08-28 Paige Ramsden , Matt Nicholl , Sean L. McGee , Andrew Mummery

Stars can be ripped apart by tidal forces in the vicinity of a massive black hole (MBH), causing luminous flares known as tidal disruption events (TDEs). These events could be contributing to the mass growth of intermediate-mass MBHs, and…

High Energy Astrophysical Phenomena · Physics 2024-09-18 M. Polkas , S. Bonoli , E. Bortolas , D. Izquierdo-Villalba , A. Sesana , L. Broggi , N. Hoyer , D. Spinoso

A tidal disruption event (TDE) occurs when the gravitational field of a supermassive black hole (SMBH) destroys a star. For TDEs in which the star enters deep within the tidal radius, such that the ratio of the tidal radius to the…

High Energy Astrophysical Phenomena · Physics 2022-11-16 Suman Kumar Kundu , Eric R. Coughlin , C. J. Nixon

Dynamical perturbations from supermassive black hole (SMBH) binaries can increase the rates of tidal disruption events (TDEs). However, most previous work focuses on TDEs from the heavy black hole in the SMBH binary (SMBHB) system. In this…

High Energy Astrophysical Phenomena · Physics 2023-06-13 Brenna Mockler , Denyz Melchor , Smadar Naoz , Enrico Ramirez-Ruiz

A tidal disruption event (TDE) occurs when a star is destroyed by the strong tidal shear of a massive black hole (MBH). The accumulation of TDE observations over the last years has revealed that post-starburst galaxies are significantly…

Astrophysics of Galaxies · Physics 2022-02-15 Elisa Bortolas