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A star entering the tidal sphere of a supermassive black hole (SMBH) can be partially stripped of mass, resulting in a partial tidal disruption event (TDE). Here we develop an analytical model for properties of these events, including the…

高能天体物理现象 · 物理学 2026-01-07 Ananya Bandopadhyay , Eric R. Coughlin , C. J. Nixon

A star completely destroyed in a tidal disruption event (TDE) ignites a luminous flare that is powered by the fallback of tidally stripped debris to a supermassive black hole (SMBH) of mass $M_{\bullet}$. We analyze two estimates for the…

The tidal disruption of stars by supermassive black holes (SMBHs) can be used to probe the SMBH mass function, the properties of individual stars, and stellar dynamics in galactic nuclei. Upcoming missions will detect thousands of TDEs, and…

高能天体物理现象 · 物理学 2019-09-25 Elen C. A. Golightly , C. J. Nixon , Eric R. Coughlin

A tidal disruption event (TDE) occurs when a star plunges through a supermassive black hole's tidal radius, at which point the star's self-gravity is overwhelmed by the tidal gravity of the black hole. In a partial TDE, where the star does…

高能天体物理现象 · 物理学 2020-08-19 Patrick R. Miles , Eric R. Coughlin , C. J. Nixon

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…

高能天体物理现象 · 物理学 2022-11-16 Suman Kumar Kundu , Eric R. Coughlin , C. J. Nixon

A star destroyed by a supermassive black hole (SMBH) in a tidal disruption event (TDE) enables the study of SMBHs. We propose that the distance within which a star is completely destroyed by a SMBH, defined $r_{\rm t, c}$, is accurately…

高能天体物理现象 · 物理学 2022-09-21 Eric R. Coughlin , Chris Nixon

Highly energetic stellar tidal disruption events (TDEs) provide a way to study black hole characteristics and their environment. We simulate TDEs with the PHANTOM code in a general relativistic and Newtonian description of a supermassive…

高能天体物理现象 · 物理学 2023-03-29 Taj Jankovič , Andreja Gomboc

A tidal disruption event (TDE) ensues when a star passes too close to the supermassive black hole (SMBH) in a galactic center and is ripped apart by the tidal field of the SMBH. The gaseous debris produced in a TDE can power a bright…

高能天体物理现象 · 物理学 2019-02-20 Nicholas C. Stone , Michael Kesden , Roseanne M. Cheng , Sjoert van Velzen

We study the mass fallback rate of tidally disrupted stars on marginally bound and unbound orbits around a supermassive black hole (SMBH) by performing three-dimensional smoothed particle hydrodynamic (SPH) simulations with three key…

高能天体物理现象 · 物理学 2020-09-02 Gwanwoo Park , Kimitake Hayasaki

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

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

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…

The tidal destruction of a star by a massive black hole, known as a tidal disruption event (TDE), is commonly modeled using the "frozen-in" approximation. Under this approximation, the star maintains exact hydrostatic balance prior to…

高能天体物理现象 · 物理学 2019-04-17 Elad Steinberg , Eric R. Coughlin , Nicholas C. Stone , Brian D. Metzger

A star approaching a supermassive black hole (SMBH) can be torn apart in a tidal disruption event (TDE). We examine ultra-deep TDEs, a new regime in which the disrupted debris approaches close to the black hole's Schwarzschild radius, and…

高能天体物理现象 · 物理学 2019-07-24 Siva Darbha , Eric R. Coughlin , Daniel Kasen , Chris Nixon

Stars in the immediate vicinity of supermassive black holes (SMBHs) can be ripped apart by the tidal forces of the black hole. The subsequent accretion of the stellar material causes a spectacular flare of electromagnetic radiation. Here,…

高能天体物理现象 · 物理学 2015-05-06 S. Komossa

The disruption of stars by supermassive black holes has been linked to more than a dozen flares in the cores of galaxies out to redshift $z \sim 0.4$. Modeling these flares properly requires a prediction of the rate of mass return to the…

高能天体物理现象 · 物理学 2015-06-05 James Guillochon , 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…

高能天体物理现象 · 物理学 2018-03-21 Quentin Vigneron , Giuseppe Lodato , Alessio Guidarelli

Tidal disruption events (TDEs), in which a star is destroyed by the gravitational field of a supermassive black hole (SMBH), are being observed at a high rate owing to the advanced state of survey science. One of the properties of TDEs that…

高能天体物理现象 · 物理学 2023-05-31 Eric R. Coughlin , Matt Nicholl

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…

星系天体物理 · 物理学 2022-02-15 Elisa Bortolas

We present the STARS library, a grid of tidal disruption event (TDE) simulations interpolated to provide the mass fallback rate ($dM/dt$) to the black hole for a main-sequence star of any stellar mass, stellar age, and impact parameter. We…

高能天体物理现象 · 物理学 2022-07-26 Jamie A. P. Law-Smith , David A. Coulter , James Guillochon , Brenna Mockler , Enrico Ramirez-Ruiz
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