Relativistic jets in Galactic superluminals and extragalactic AGN may be surrounded by a wind near to the central engine. Theoretical analysis and numerical simulation reveal considerable stabilization of relativistic jet flow by a wind to helical and higher order asymmetric modes of jet distortion. When velocities are measured in the source (inlet) frame, reduction in the absolute velocity dif...

Natural environments are characterized by variable wind that can pose significant challenges for flying animals and robots. However, our understanding of the flow conditions that animals experience outdoors and how these impact flight performance remains limited. Here, we combine laboratory and field experiments to characterize wind conditions encountered by foraging bumblebees in outdoor envir...

Abstract Revealing the formation, dynamics, and contribution to plasma heating of magnetic field fluctuations in solar wind is an important task for heliospheric physics a general turbulence theory. Spacecraft observations are limited spatially localized measurements, so that evolution fluctuation properties with propagation mostly studied via statistical analyses data sets collected by differe...

We present a detailed discussion of our new 3D numerical models for the accretion of stellar winds on to Sgr A. In our most sophisticated models, we put stellar wind sources on realistic orbits around Sgr A, we include recently discovered ‘slow’ winds (vw ∼ 300 km s ), and we account for optically thin radiative cooling. We test our approach by first modelling only one phase ‘fast’ stellar wind...