Results 21 to 30 of about 59,557 (297)

Neutrino Interactions in the Outflow from Gamma-Ray Burst Accretion Disks

, 2004
We examine the composition of matter as it flows away from gamma ray burst accretion disks, in order to determine what sort of nucleosynthesis may occur.
McLaughlin, G. C., Surman, R.
core   +1 more source

Continuum Reverberation Mapping of AGN Accretion Disks

Frontiers in Astronomy and Space Sciences, 2017
We show recent detections of inter-band continuum lags in three AGN (NGC 5548, NGC 2617, and MCG+08-11-011), which provide new constraints on the temperature profiles and absolute sizes of the accretion disks.
Michael M. Fausnaugh, Michael M. Fausnaugh, Bradley M. Peterson, Bradley M. Peterson, Bradley M. Peterson, David A. Starkey, David A. Starkey, Keith Horne, the AGN STORM Collaboration   +8 more
doaj   +1 more source

Accretion Outbursts in Circumplanetary Disks

, 2012
We describe a model for the long term evolution of a circumplanetary disk that is fed mass from a circumstellar disk and contains regions of low turbulence (dead zones).
Lubow, S. H., Martin, R. G.
core   +1 more source

Microflares in accretion disks [PDF]

, 2002
We have investigated the phenomenon of explosive chromospheric evaporation from an accretion disk as a mechanism for fast variability in accreting sources such as low mass X-ray binaries and active galactic nuclei.
Abramowicz, Antonucci, Bastian, Chakrabarti, Chakrabarti, di Matteo, Esin, Esin, Fisher, Fisher, Galeev, Haardt, Hawley, Krishan, Krishan, Lakhina, Lasota, Lawrence, McClymont, Miller, Narayan, Narayan, P. J. Wiita, Parker, Raymond, Robinson, S. Ramadurai, Shakura, Tanaka, Trudolyubov, Turner, V. Krishan, Wagner, White   +33 more
core   +3 more sources

A Note on the Slim Accretion Disk Model

, 2007
We show that when the gravitational force is correctly calculated in dealing with the vertical hydrostatic equilibrium of black hole accretion disks, the relationship that is valid for geometrically thin disks, i.e., $c_s/\Omega_K H =$ constant, where ...
Ju‐Fu Lu, Matsumoto R., McKinney J. C., Paczynski B., Peitz J., Shakura N. I., Vierdayanti K., Watarai K., Wei‐Min Gu   +8 more
core   +1 more source

Super Eddington Slim Accretion Disks with Winds [PDF]

, 2010
We construct Super-Eddington Slim Disks models around both stellar and super-massive black holes by allowing the formation of a porous layer with a reduced effective opacity.
Abamowicz, Abramowicz, Abramowicz, Arons, Bardeen, Begelman, Begelman, Blandford, Calanit Dotan, Davis, Eggum, Gammie, Glatzel, Ichimaru, Jaroszynski, Joss, Narayan, Nir J. Shaviv, Ohsuga, Owocki, Owocki, Paczynsky, Papaloizou, Poutanen, Schwarz, Shakura, Shaviv, Shaviv, Shaviv, Shaviv, Shaviv, Starrfield, Titarchuk, Turner, van Marle   +34 more
core   +1 more source

Laboratory modeling of MHD accretion disks

Comptes Rendus. Physique
This review article summarizes two decades of laboratory research aimed at understanding the dynamics of accretion disks, with particular emphasis on magnetohydrodynamic experiments involving liquid metals and plasmas.
Gissinger, Christophe
doaj   +1 more source

Thin accretion disk signatures of scalarized black holes in Einstein-scalar-Gauss-Bonnet gravity

Physics Letters B, 2021
Einstein-scalar-Gauss-Bonnet gravity has recently been known to exhibit spontaneous scalarization. In the presence of the Gauss-Bonnet term the no-hair theorem can be evaded and novel black hole solutions with non-trivial scalar fields have been found ...
Mohaddese Heydari-Fard, Hamid Reza Sepangi   +1 more
doaj   +1 more source

Gravitational radiation from precessing accretion disks in gamma-ray bursts [PDF]

, 2010
We study the precession of accretion disks in the context of gamma-ray burst inner engines. Our aim is to quantitatively estimate the characteristics of gravitational waves produced by the precession of the transient accretion disk in gamma-ray bursts ...
Acernese, Bardeen, Blackman, Caproni, Corsi, Daigne, Di Matteo, Foley, G. E. Romero, Guetta, H. R. Christiansen, Heinz, Kato, Kobayashi, Kobayashi, Lense, Liang, Liu, Liu, M. M. Reynoso, Mineshinge, Mochkovitch, Nelson, Popham, Portegies-Zwart, Reynoso, Romero, Virgili, Woosley, Zimmermann   +29 more
core   +2 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source