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tidal disruption

Radio follow-up observations of stellar tidal disruption flares: Constraints on off-axis jets

Radio follow-up observations of stellar tidal disruption flares: Constraints on off-axis jets

... Abstract. Observations of active galactic nuclei (AGN) and X-ray binaries have shown that relativistic jets are ubiquitous when compact objects accrete. One could therefore anticipate the launch of a jet after a star is ...

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Swift J1112 2−8238 : a candidate relativistic tidal disruption flare

Swift J1112 2−8238 : a candidate relativistic tidal disruption flare

... the tidal disruption of a solar-type star that had also launched a moderately relativistic ...relativistic tidal disruption flare (rTDF) interpretation was not unchallenged, and other mecha- ...

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Tidal disruption events from the first XMM-Newton slew survey

Tidal disruption events from the first XMM-Newton slew survey

... of tidal disruption events can be used to unveil the presence of SMBHs in non active galaxies ...the disruption of a star when crossing the tidal radius of the black ...post- disruption ...

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Radio afterglow of the jetted tidal disruption event Swift J1644+57

Radio afterglow of the jetted tidal disruption event Swift J1644+57

... of tidal disruption events (TDEs) and offers a unique probe of the physics of relativistic jet formation and the conditions in the centers of distant quiescent ...

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Explaining the variability of WD 1145+017 with simulations of asteroid tidal disruption

Explaining the variability of WD 1145+017 with simulations of asteroid tidal disruption

... actual tidal disruption has not yet been modelled numerically, and, with the exception of Gurri, Veras & G¨ansicke (2017), all previous studies on this system have been observationally ...

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A TWO-COMPONENT JET MODEL FOR THE TIDAL DISRUPTION EVENT SWIFT J164449.3+573451

A TWO-COMPONENT JET MODEL FOR THE TIDAL DISRUPTION EVENT SWIFT J164449.3+573451

... We analyze both the early- and late-time radio and X-ray data of the tidal disruption event (TDE) Swift J1644+57. The data at early times (5 days) necessitate separation of the radio and X-ray emission ...

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Tidal disruption of stars by supermassive black holes: The X-ray view

Tidal disruption of stars by supermassive black holes: The X-ray view

... actual disruption, ejection and accretion of material, and up to the late stages of the accretion phase, are very ...of tidal disruption, and deriving the type of disrupted star and the spin of the ...

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Radio-X-Ray Synergy to Discover and Study Jetted Tidal Disruption Events

Radio-X-Ray Synergy to Discover and Study Jetted Tidal Disruption Events

... of tidal disruption of stars by supermassive black holes ( SMBHs ) can enable us to discover quiescent SMBHs, constrain their mass function, and study  the formation and evolution of transient accretion ...

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Bad prospects for the detection of giant stars' tidal disruption: effect of the ambient medium on bound debris

Bad prospects for the detection of giant stars' tidal disruption: effect of the ambient medium on bound debris

... Tidal disruption events (TDEs) occur when a star is scattered into a plunging orbit that brings it so close to a supermassive black hole (SMBH) that it is torn apart by strong tidal forces (Frank ...

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Late time observations of the relativistic tidal disruption flare candidate Swift J1112 2 8238

Late time observations of the relativistic tidal disruption flare candidate Swift J1112 2 8238

... We present late-time follow-up of the relativistic tidal disruption flare (rTDF) candidate Swift J1112.2−8238. We confirm the previously determined redshift of z = 0.8900 ± 0.0005 based on multiple emission ...

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Challenges in the modeling of tidal disruption events lightcurves

Challenges in the modeling of tidal disruption events lightcurves

... the tidal radius, and hence β = ...the tidal radius or does it rather reflect the conditions at pericenter? The problem has been first investigated by Sari et al [24] in the related context of tidal ...

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Tidal disruption of inclined or eccentric binaries by massive black holes

Tidal disruption of inclined or eccentric binaries by massive black holes

... undergo tidal disruption and eject a hypervelocity ...the tidal radius around the ...the disruption probability and energy gain at the the BH encounter as a function of the penetration ...the ...

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Discovery of a tidal disruption event candidate from the 2XMM catalog

Discovery of a tidal disruption event candidate from the 2XMM catalog

... Supermassive black holes (SMBHs) are believed to reside in the center of many galaxies, but only a fraction of them reveal themselves as active galactic nuclei (AGN), while others are dormant [1]. Tidal ...

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On the Papaloizou-Pringle instability in tidal disruption events

On the Papaloizou-Pringle instability in tidal disruption events

... the tidal disruption of stars around a supermassive black ...of tidal disruption events are unstable to the m = 1 mode of the Papaloizou-Pringle ...circularised tidal disruption ...

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WASP 121 b : a hot Jupiter close to tidal disruption transiting an active F star

WASP 121 b : a hot Jupiter close to tidal disruption transiting an active F star

... scattered into highly eccentric orbits with short pericentre distances from much further out, due to e.g. planet–planet interactions (e.g. Rasio & Ford 1996; Weidenschilling & Marzari 1996; Moorhead & Adams ...

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Stellar dynamics and tidal disruption events in galactic nuclei

Stellar dynamics and tidal disruption events in galactic nuclei

... Figure 1. Schematic depiction of LC dynamics in real space and in phase space, and of the di ff erence between infall and inspiral. Left: a test star’s velocity vector is deflected into the LC by an interaction with a ...

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A study of exotic nuclear extragalactic transients

A study of exotic nuclear extragalactic transients

... While TDFs are expected to a be a near ubiquitous feature of galaxies hosting small enough black holes, a number of features are generally helpful for their conclu- sive identification. In particular hosts with minimal ...

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Milky Way Dwarf Galaxies: A Search for Stellar Substructure

Milky Way Dwarf Galaxies: A Search for Stellar Substructure

... extra tidal break radius. The large tidal radius observed in Sextans also suggests that the extended stellar halo-structure is bound by the galaxy’s gravitational ...the tidal radius, the majority of ...

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ASASSN-15lh: a superluminous ultraviolet rebrightening observed by Swift and Hubble

ASASSN-15lh: a superluminous ultraviolet rebrightening observed by Swift and Hubble

... of tidal dis- ruption events (TDEs) –luminous, hot transients result- ing from the tidal disruption of a star by a previously in- active galactic nucleus (Rees 1988; Loeb & Ulmer ...

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Hydro Meteorological Trends in Southwest Coastal Bangladesh: Perspectives of Climate Change and Human Interventions

Hydro Meteorological Trends in Southwest Coastal Bangladesh: Perspectives of Climate Change and Human Interventions

... phenomenon but not the falling trend in the low tidal water level. About 40 polders with 1566 km of embank- ments and 282 drainage sluices, encompassing an area of 411 thousand hectares, were constructed in ...

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