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Black hole physics

A tensorial description of particle perception in black-hole physics

A tensorial description of particle perception in black-hole physics

... evaporating black hole, that is, in the Unruh ...the black hole with an enormous tem- perature: Hawking’s temperature multiplied by the very large blue-shift factor associated with the radial ...

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A note on the Cardy formula and black holes in 3D (massive) bigravity

A note on the Cardy formula and black holes in 3D (massive) bigravity

... to black hole physics require three ingredients: a black hole solution with an asymptotic conformal symmetry, the relation between the zero mode Virasoro field and black ...

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Quasilocal first law for black hole thermodynamics

Quasilocal first law for black hole thermodynamics

... horizon area and ‘ is a proper length characterizing the distance to the horizon of a preferred family of quasilocal observers suitable for thermodynamical considerations. Our construction is extended to the more general ...

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The Cosmic History of Black Hole Growth from Deep Multiwavelength Surveys

The Cosmic History of Black Hole Growth from Deep Multiwavelength Surveys

... supermassive black holes form and ...of black hole accretion, that is, when in the history of the universe super- massive black holes were getting most of their ...

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A study of optical and radio properties of radio-loud AGN

A study of optical and radio properties of radio-loud AGN

... It has been argued that the so-called X-shaped radio galaxies and double-double radio galaxies (DDRGs) have a common origin (e.g. Merritt and Ekers, 2002; Liu et al., 2003; Liu, 2004). The symmetry of DDRG strongly ...

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The supermassive black hole coincident with the luminous transient ASASSN 15lh

The supermassive black hole coincident with the luminous transient ASASSN 15lh

... Metzger et al. 2015; Bersten et al. 2016; Kozyreva et al. 2016; Coughlin & Armitage 2018; Sukhbold & Woosley 2016), which have attempted to explain its remarkable observational features. ASASSN-15lh was initially ...

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Black hole masses and starbursts in X-shaped radio sources

Black hole masses and starbursts in X-shaped radio sources

... central black holes in galaxies hosting the X-shaped ...the black hole masses and starburst histories can therefore address the question of the physical nature of the X-shaped sources ...

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A simple accretion model of a rotating gas sphere onto a Schwarzschild black hole

A simple accretion model of a rotating gas sphere onto a Schwarzschild black hole

... In the Newtonian case, the specific angular momentum h ∞∗ converges to the value calculated by Ulrich (1976). With the above relations it is possible to calculate the equation for a given fluid particle falling onto the ...

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Exploring an unknown graph to locate a black hole using tokens

Exploring an unknown graph to locate a black hole using tokens

... This version of the exploration problem is called black hole search ( Bhs ). It is known that, for its solution, the number of nodes of the network must be known to the agents [9]; furthermore, if the graph ...

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An Extreme Rotating Black Hole in New Massive Gravity Theory

An Extreme Rotating Black Hole in New Massive Gravity Theory

... spacetime. Black hole solutions have been found in this theory, in particular an asymptotically anti-de Sitter rotating black ...horizon, black hole area and distance to the horizon, ...

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Massive black hole binary mergers within subparsec scale gas discs

Massive black hole binary mergers within subparsec scale gas discs

... the stellar background is rapid for large separations (Milosavljevi´c & Merritt 2003), for parsec scale binaries the rate slows dramatically as the black holes eject the finite number of stars that have orbits ...

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Sub dominant modes of the gravitational radiation from compact binary coalescences: construction of hybrid waveforms and impact on gravitational wave searches

Sub dominant modes of the gravitational radiation from compact binary coalescences: construction of hybrid waveforms and impact on gravitational wave searches

... using Newtonian theory, which is valid in the limit where the distance between both compact objects tends to infinity. The computation of the waveform describing the GW emission during the whole coalescence requires ...

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Archimboldi : el agujero negro de 2666 = Archimboldi : the black hole in 2666

Archimboldi : el agujero negro de 2666 = Archimboldi : the black hole in 2666

... Parecían petrificarse de repente, olvidar el tiempo y volverse del todo hacia dentro, como si dejaran de lado el abismo de la vida diaria, el abismo de la gente, el abismo de la conversa[r] ...

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Hawking versus Unruh effects, or the difficulty of slowly crossing a black hole horizon

Hawking versus Unruh effects, or the difficulty of slowly crossing a black hole horizon

... The process is the following: for initially free-falling observers with low velocity nearby the horizon, a huge Unruh effect appears in the ingoing sector which tends to brake the free-falling trajectory. But, once the ...

15

The Superluminous Transient ASASSN-15lh as a Tidal Disruption Event from a Kerr Black Hole

The Superluminous Transient ASASSN-15lh as a Tidal Disruption Event from a Kerr Black Hole

... If black hole spin were the dominant factor in setting jet power, we would have expected ASASSN-15lh to host a jet at least comparable in strength to ASASSN-14li (as we have inferred a high black ...

56

Gravitational lensing effects on detection of gravitational waves from black hole binary systems

Gravitational lensing effects on detection of gravitational waves from black hole binary systems

... diate black holes (at the present time undetected) have a formation channel that allow a not so small population of these objects, then gravitational lensing of gravitational waves will be a non-negligible ...

103

On the hydrodynamic interplay between a young nuclear starburst and a central supermassive black hole

On the hydrodynamic interplay between a young nuclear starburst and a central supermassive black hole

... supermassive black hole ...the black hole, defined by the matter reinserted by massive stars within the stagnation volume and a stationary starburst wind, driven by the high thermal pressure ...

8

Limiting eccentricity of subparsec massive black hole binaries surrounded by self gravitating gas discs

Limiting eccentricity of subparsec massive black hole binaries surrounded by self gravitating gas discs

... In order to separate the two effects we set two simulations with identical initial conditions as described above. In runI, we keep ex- actly the thermodynamics employed in our fiducial runs, that allow a stable accretion ...

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Evidence for Three Accreting Black Holes in a Galaxy at z ~ 1 35: A Snapshot of Recently Formed Black Hole Seeds?

Evidence for Three Accreting Black Holes in a Galaxy at z ~ 1 35: A Snapshot of Recently Formed Black Hole Seeds?

... massive black holes may thus lurk just below the detection limit of deep X-ray AGN ...low-mass black holes in z ∼ ...of black hole for- mation and growth in the universe and the physical ...

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Spherically symmetric accretion from a nuclear young starburst onto a super massive black hole

Spherically symmetric accretion from a nuclear young starburst onto a super massive black hole

... The results of this thesis leads to an intrinsic link between the lumi- nosity of a SMBH located at the center of a young nuclear starburst and the starburst parameters. However, the model here developed still does not ...

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