The study presents a numerical investigation of aerodynamic drag reduction by implementing counterflow plasma jet, emanating from the stagnation point an surface in supersonic regime with constant pressure ratio PR = 3 , and co...

At the LHC, where hard multi-jet events are common, large imbalances in the total jet-pT can arise due to the interaction of jets with the plasma formed in heavy-ion collisions. We find that this missing-pT spectrum yields a measurement of the initial temperature of the plasma. Using commonly accepted guesses for this temperature, and ISAJET estimates for jet cross sections, we predict an order...

We review recent progress in the theory of jet production, with particular emphasis on the possibility of 1) powerful jets being produced in the first few seconds after collapse of a supernova core and 2) those jets being responsible for the asymmetric explosion itself. The presently favored jet-production mechanism is an electrodynamic one, in which charged plasma is accelerated by electric fi...

In this paper we carry out numerical modeling of coronal jets to understand their effects on the global corona and their contribution to the solar wind. We simulated jet models implemented within a well established three dimensional, two-temperature magneto-hydrodynamic (MHD) solar corona model that is built upon kinetic Alvén wave dissipation, producing realistic solar wind background. The jet...

We have for the first time detected X-ray emission associated with a protostellar jet, on the jet emanating from the L1551 IRS5 protostar. The IRS5 protostar is hidden behind a very large absorbing column density, making the direct observation of the jet’s emission possible. The observed X-ray emission is likely associated with the shock “working surface”, i.e. the interface between the jet and...

Pulsed power technology and appropriate boundary conditions have been used to create simulations of magnetically driven astrophysical jets in a laboratory experiment. The experiments are quite reproducible and involve a distinct sequence. Eight initial flux tubes, corresponding to eight gas injection locations, merge to form the jet which lengthens, collimates, and eventually kinks. A model dev...

Recent observation of high-pT hadron spectra suppression and mono-jet production in central Au + Au collisions and their absence in d + Au collisions at RHIC have confirmed the long predicted phenomenon of jet quenching in high-energy heavy-ion collisions. Detailed analyses of the experimental data also show parton energy loss as the mechanism for the discovered jet quenching. Using a pQCD part...

We have for the first time detected X-ray emission associated with a proto-stellar jet, on the jet emanating from L1551 IRS5. The IRS5 proto-star is hidden beyond a very large absorbing column density, making the direct observation of the jet's emission possible. The observed X-ray emission is likely associated with the shock " working surface " , i.e. the interface between the jet and the circ...

Observations have revealed strong evidence for powerful jets in the Low/Hard states of black hole candidate X-ray binaries. Correlations, both temporal and spectral, between the radio – infrared and X-ray bands suggest that jet synchrotron as well as inverse Compton emission could also be significantly contributing at higher frequencies. We show here that, for reasonable assumptions about the j...

The origin of jets emitted from black holes is not well understood; however, there are two possible energy sources: the accretion disk or the rotating black hole. Magnetohydrodynamic simulations show a well-defined jet that extracts energy from a black hole. If plasma near the black hole is threaded by large-scale magnetic flux, it will rotate with respect to asymptotic infinity, creating large...