Results 91 to 100 of about 4,909 (237)
Radio Science, Volume 61, Issue 6, June 2026.Abstract Since its observation in 2019, the first image of a super‐massive black hole using Very Long Baseline Interferometry (VLBI) with an Earth‐scale baseline has generated much scientific and public interest. Work is now underway to extend the baseline into space to obtain higher image resolution.
E. A. Burt +5 more
wiley +1 more source
Primordial black holes in non-linear perturbation theory
, 2009 PhDThe thesis begins with a study of the origin of non-linear cosmological fluctuations. In particular, a class of models of multiple field inflation are considered, with specific reference to those cases in which the non-Gaussian correlation functions
Hidalgo-Cuellar, Juan Carlos
core
X-rays from Compton scattering around accreting black holes [PDF]
, 2002 Compton scattering is one of the most important radiation processes from accreting compact objects. Hard X-rays can be produced by Compton upscattering of soft seed photons from the accretion disk.
Wilson, Colin David
core
Super-Eddington Accretion onto Black Holes and Its Application to Fallback Accretion
The Astrophysical JournalWe study the problem of steady-state spherical accretion onto a black hole, in which the internal energy of the flow is governed by radiation and photon diffusion dominates the energy flux at large radii.
Tamar Faran, Eliot Quataert
doaj +1 more source
Space Weather, Volume 24, Issue 6, June 2026.Abstract Ejections of magnetized plasma from the Sun, known as coronal mass ejections, can drive major geomagnetic activity if Earth‐directed, and are therefore monitored by space weather forecasters. The current focus being the forecast of the arrival time of a coronal mass ejection at Earth and the level of geomagnetic impact.
L. M. Green +7 more
wiley +1 more source
Perturbations around black holes
, 2005 Perturbations around black holes have been an intriguing topic in the last few decades. They are particularly important today, since they relate to the gravitational wave observations which may provide the unique fingerprint of black holes' existence ...
Wang,Bin, Wang, Bin
core +1 more source
Circularly Expanding Ring‐Shaped Pulsating Aurora Visualizing the Source of Plasma Waves in Space
AGU Advances, Volume 7, Issue 3, June 2026.Abstract Pulsating aurorae are prominent auroral emissions in the polar regions, typically occurring in the morning hours during the recovery phase of auroral substorms. These aurorae usually consist of round‐shaped patches of emission, with luminosity that pulsates at intervals ranging from less than a second to several tens of seconds.
K. Hosokawa +18 more
wiley +1 more source
, 2017 The idea that black hole spin is instrumental in the generation of powerful jets in active galactic nuclei and X-ray binaries is arguably the most contentious claim in black hole astrophysics.
David Garofalo, Garofalo, David
core +1 more source
Scalar-Tensor Black Holes Embedded in an Expanding Universe
Universe, 2018 In this review, we focus our attention on scalar-tensor gravity models and their empirical verification in terms of black hole and wormhole physics.
Daria Tretyakova, Boris Latosh
doaj +1 more source
Exploring Potential Mechanisms for the Initiation of Solifluction Patterns
AGU Advances, Volume 7, Issue 3, June 2026.Abstract Hillslopes in arctic regions commonly display large‐scale features—known as solifluction patterns—that form due to the exceedingly slow downhill movement of frost‐heaved soil. Here we use a combination of remote sensing data, linear stability analysis, numerical modeling, and review of a wide range of literature to evaluate several working ...
Rachel C. Glade +4 more
wiley +1 more source