Supermassive black hole
Cold, clumpy accretion onto an active supermassive black hole
... the black hole is ten times more likely to cross our line of sight than a cloud at a galactocentric distance of 1 ...the black hole were they spread over several kiloparsecs throughout the ...
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Multiwavelength study of the flaring activity of the supermassive black hole Sgr A* at the center of the Milky Way
... Figure 1.5: Mean SED of Sgr A* from VLA, the Atacama Large Millimeter Array (ALMA) and the Sub- millimeter Array (SMA) observations between 2012 to 2014 as shown in Bower et al. ( 2015 ). To explain the low luminosity ...
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AMUSE-VIRGO. II. DOWN-SIZING IN BLACK HOLE ACCRETION
... words: black hole physics – galaxies: clusters: individual (Virgo) Online-only material: color figures ...a supermassive black hole ...since black holes (BHs) have grown mostly ...
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The basic physics of the binary black hole merger GW150914
... dense than neutron stars, these bodies exceed the max- imum neutron star mass by an order of magnitude, as the neutron star limit is ∼ 3M (3.2 M in [46, 47], 2.9 M in [48]). A more careful analysis of the frequency ...
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Nonlinear energy transfer to improve the acoustic black hole effect
... [5] V. Denis, F. Gautier, A. Pelat, J. Poittevin, Measurement and modelling of the reflection coefficient of an acoustic black hole termina- tion. Journal of Sound and Vibration 349, 67-79, 2015. [6] E.P. ...
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The basic physics of the binary black hole merger GW150914
... 1 Introduction Advanced LIGO made the first observation of a gravi- tational wave (GW) signal, GW150914 [1], on Septem- ber 14th, 2015, a successful confirmation of a prediction by Einstein’s theory of general relativity ...
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Maxwell and Yang-Mills Equations on Curved Black Hole Space-Times
... theorem to T tµ , where T is the Maxwell energy momentum tensor, between two space-like hypersurfaces prescribed by t = constant leads to a conservation of energy that is at the level of a space integral of T tt . In ...
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Black-Hole Microstates in String Theory : Black is the Color but Smooth are the Geometries?
... in black-hole physics and in holographic renormalization group flows, singularities arise when one does not include the essential degrees of freedom needed to resolve ...resolve black-hole ...
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ASTROPHYSICAL IMPLICATIONS OF THE BINARY BLACK HOLE MERGER GW150914
... Abilene Christian University, Abilene, TX 79699, USA Received 2016 January 29; accepted 2016 February 3; published 2016 February 11 ABSTRACT The discovery of the gravitational-wave (GW) source GW150914 with the Advanced ...
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Advanced localization of massive black hole coalescences with LISA
... includes instrument noise [38] and confusion noise from Galactic [39] and extragalactic [40] white dwarf binaries. The inverse of the Fisher matrix is the covariance matrix, Σ ab , the diagonal entries of which ...
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Smooth horizonless geometries deep inside the black-hole regime
... (BMPV) black holes in string theory [ 15 ] in which the angular momenta take arbitrary finite values, in particular including arbitrarily small values; and by (ii) identifying the dual CFT ...string-size ...
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Black hole singularities in the framework of gauge/string duality
... In the first two sections we first introduce the AdS Schwarzschild black hole geometry and then review some of the properties of real time correlation functions in fini[r] ...
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The acoustic black hole: A review of theory and applications
... Since its initial formulation, about four decades ago, the concept of the ABH has attracted growing interest within the engi- neering community. The basic operating principle exploited in an ABH finds its roots in the ...
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Immersed acoustic black hole as a travelling wave absorber: understanding artificial cochlear mechanics
... at the abscissa z 0 to the total length of the ABH and z t is the theoretical abscissa of the ABH’s end. When the z posi- tion tends to z t , the flexural wave number is increasing and tends theoretically to infinity. At ...
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Ping Pong in Dangerous Graphs: Optimal Black Hole Search with Pebbles
... the black hole search problem in networks of arbitrary but known topology, the pebble model of agent interaction is compu- tationally as powerful as the whiteboard model; furthermore the complexity is ...
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Accretion and Emission close to supermassive Black Holes in Quasars and AGN: Modeling the UV-X-spectrum
... L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignemen[r] ...
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Binary Black Hole Mergers in the First Advanced LIGO Observing Run
... curves is indicative of the SNR of the events. The gravitational-wave signal from a BBH merger takes the form of a chirp, increasing in frequency and amplitude as the black holes spiral inwards. The amplitude of ...
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Non-extremal black hole microstates: Fuzzballs of fire or fuzzballs of fuzz ?
... single-center black hole ...a black hole implies that the difference between fuzzballs and the classical black hole is not strongly suppressed immediately above the horizon ...
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Binary Black Hole Mergers in the First Advanced LIGO Observing Run
... Isolated binary evolution is thought to prefer comparable masses, with mass ratios q < 0.5 unlikely for the classical scenario [189] and implausible for chemically homo- geneous evolution [181] . The dynamical ...
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Sparse control of Hegselmann-Krause models: Black hole and declustering
... Self-organization has thus been extensively studied, especially focusing on the emergence of patterns such as consensus or alignment that arise from inherent properties of certain dynamics. When consensus is not reached ...
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