Rates of stellar tidal disruption as probes of the supermassive black hole mass function
- N. Stone, B. Metzger
- Physics
- 28 October 2014
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…
A radio jet from the optical and x-ray bright stellar tidal disruption flare ASASSN-14li
- S. van Velzen, G. Anderson, R. Fender
- PhysicsScience
- 27 November 2015
Radio follow-up observations of known thermal stellar tidal disruption flares (TDFs) are monitored and a detection of variable radio emission from a thermal TDF, which is interpreted as originating from a newly launched jet, suggests that all TDFs could be accompanied by a jet.
Consequences of Strong Compression in Tidal Disruption Events
The dynamics of stellar tidal disruption depend strongly on how deeply the victim star’s orbit plunges into the tidal sphere. In this Chapter, we show that most previous estimates of the spread in…
A bright year for tidal disruptions
- B. Metzger, N. Stone
- Physics
- 10 June 2015
When a star is tidally disrupted by a supermassive black hole (BH), roughly half of its mass falls back to the BH at super-Eddington rates. Being tenuously gravitationally bound and unable to cool…
Late-time UV Observations of Tidal Disruption Flares Reveal Unobscured, Compact Accretion Disks
- Sanne G M van Velzen, N. Stone, B. Metzger, S. Gezari, T. Brown, A. Fruchter
- Physics, GeologyAstrophysical Journal
- 31 August 2018
The origin of thermal optical and UV emission from stellar tidal disruption flares (TDFs) remains an open question. We present Hubble Space Telescope far-UV (FUV) observations of eight…
Erratum: Black hole masses of tidal disruption event host galaxies II
- T. Wevers, N. Stone, J. Casares
- PhysicsMonthly notices of the Royal Astronomical Society
- 27 June 2017
We present new medium resolution, optical long-slit spectra of a sample of six ultraviolet (UV)/optical and 17 X-ray-selected tidal disruption event candidate host galaxies. We measure emission…
Finite, Intense Accretion Bursts from Tidal Disruption of Stars on Bound Orbits
- K. Hayasaki, N. Stone, A. Loeb
- Physics, Geology
- 4 October 2012
We study accretion processes for tidally disrupted stars approaching supermassive black holes on bound orbits, by performing three dimensional Smoothed Particle Hydrodynamics simulations with a…
Observing Lense-Thirring precession in tidal disruption flares.
It is demonstrated that Lense-Thirring precession in the spacetime around a rotating SMBH can produce significant time evolution of the disk angular momentum vector, due to both the periodic precession of the disks and the nonperiodic, differential precessionof the bound debris streams.
An overabundance of black hole X-ray binaries in the Galactic Centre from tidal captures
- A. Generozov, N. Stone, B. Metzger, J. Ostriker
- Physics
- 4 April 2018
A large population of X-ray binaries (XRBs) was recently discovered within the central parsec of the Galaxy by Hailey et al. While the presence of compact objects on this scale due to radial mass…
A statistical solution to the chaotic, non-hierarchical three-body problem
A statistical solution to the non-hierarchical three-body problem that is derived using the ergodic hypothesis and that provides closed-form distributions of outcomes (for example, binary orbital elements) when given the conserved integrals of motion is reported.
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