Results 51 to 60 of about 2,217,119 (170)
Interplay of Magnetic Reconnection and Current Sheet Kink Instability in the Earth's Magnetotail
Geophysical Research Letters, Volume 52, Issue 2, 28 January 2025.Abstract Magnetic reconnection and current sheet kink instability often develop concurrently in current sheets, yet their dynamic interplay remains unclear. We investigate their interaction in the magnetotail of a 3D global magnetospheric hybrid‐Vlasov simulation. We identify the instability growth and saturation phase and estimate the evolution of the
G. Cozzani +12 more
wiley +1 more source
Powerful Radio Sources as Probes of Black Hole Physics
UniversePowerful jetted radio sources for which the luminosity in directed kinetic energy has been empirically determined, independent of assumptions, are considered.
Ruth A. Daly
doaj +1 more source
Stellar Collisions in Galactic Nuclei: Impact on Destructive Events Near a Supermassive Black Hole
The Astrophysical Journal, 2023 The centers of galaxies host both a supermassive black hole and a dense stellar cluster. Such an environment should lead to stellar collisions, possibly at very high velocities so that the total energy involved is of the same order as supernova ...
Shmuel Balberg, Gilad Yassur
doaj +1 more source
Probing extreme black‐hole outflows on short timescales via high spectral‐resolution x‐ray imagers
Astronomische Nachrichten, Volume 345, Issue 6-7, July-August 2024.Abstract We investigate outflows and the physics of super‐Eddington versus sub‐Eddington regimes in black hole systems. Our focus is on prospective science using next‐generation high‐resolution soft x‐ray instruments. We highlight the properties of black hole ultraluminous x‐ray source (ULX) systems in particular. Owing to scale invariance in accreting
C. Pinto +9 more
wiley +1 more source
, 2006 The braneworld paradigm provides an interesting framework within which to explore the possibility that our Universe lives in a fundamentally higher dimensional space- time.
Whisker, Richard
core
Supermassive Black Hole Growth in Hierarchically Merging Nuclear Star Clusters
The Astrophysical JournalSupermassive black holes are prevalent at the centers of massive galaxies, and their masses scale with galaxy properties, increasing evidence suggesting that these trends continue to low stellar masses.
Konstantinos Kritos +7 more
doaj +1 more source
Asymptotically‐Flat Black Hole Solutions in Symmergent Gravity
Fortschritte der Physik, Volume 72, Issue 4, April 2024.Abstract Symmergent gravity is an emergent gravity model with an R+R2$R+R^2$ curvature sector and an extended particle sector having new particles beyond the known ones. With constant scalar curvature, asymptotically flat black hole solutions are known to have no sensitivity to the quadratic curvature term (coefficient of R2$R^2$). With variable scalar
Beyhan Puliçe +3 more
wiley +1 more source
Numerical Simulations of Black-Hole Spacetimes [PDF]
, 2012 This thesis covers various aspects of the numerical simulation of black-hole spacetimes according to Einstein's general theory of relativity, using the Spectral Einstein Code developed by the Caltech-Cornell-CITA collaboration.
Chu, Tony
core +1 more source
European Physical Journal C: Particles and FieldsWe investigate the strong gravitational lensing effects of various supermassive compact objects for the static and spherically symmetric hairy black hole by gravitational decoupling.
G. Mustafa, S. K. Maurya
doaj +1 more source
Differential rotation in compact objects with hyperons and delta isobars
Astronomische Nachrichten, Volume 345, Issue 2-3, February-March 2024.Abstract Neutron stars may experience differential rotation on short, dynamical timescales following extreme astrophysical events like binary neutron star mergers. In this work, the masses and radii of differentially rotating neutron star models are computed.
Delaney Farrell +3 more
wiley +1 more source