نتایج جستجو برای: plane jet
تعداد نتایج: 154973 فیلتر نتایج به سال:
Coherent jets containing most of the kinetic energy of the flow are a common feature in observations of atmospheric turbulence at the planetary scale. In the gaseous planets these jets are embedded in a field of incoherent turbulence on scales small relative to the jet scale. Large-scale coherent waves are sometimes observed to coexist with the coherent jets and the incoherent turbulence with a...
We review the broad band properties of X-ray detected hotspots in radio galaxies and quasars. We show that their collective spectral properties can be unified in a framework involving frequency dependent relativistic beaming and varying orientations to the observer’s line of sight. The simplest dynamic model consistent with this picture is a slowing-down relativistic flow downstream from the ho...
We calculate the jet power of the classical Blandford-Znajek (BZ) model and hybrid model developed by Meier (2001) based on the global solutions of advection dominated accretion flows (ADAFs) surrounding Kerr black holes. We find that the jet power of the hybrid model is larger than that of the pure BZ model. The jet power will dominate over the accretion power and the objects will enter into “...
ABSTRACT Linear polarization has been measured in several gamma-ray burst (GRB) afterglows. After a few days, arises from the forward shock emission that depends on post-shock magnetic field. The latter can originate both compression of existing fields, here interstellar medium (ISM) field, and shock-generated instabilities. For short GRBs, previous modelling arising considered random field ful...
Analysis of electron – positron annihilation into hadrons in the range of energies above 60 GeV shows that apart from two jet events, there are evidence for three jet events that according to the QCD theory interpreted as a gluon radiation by a quark. However, the higher order diagrams lead to four jet events. In this paper, we study the fragmentation of quarks and gluons into hadronic jets . ...
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