Abstract. We performed MHD simulations of very light bipolar jets with density contrasts down to 10−4 in axisymmetry, which were injected into a medium of constant density and evolved up to …

2020年10月30日 · Accretion onto the supermassive black hole in some active galactic nuclei (AGN) drives relativistic jets of plasma, which dissipate a significant fraction of their kinetic …

Jets associated with stars are composed of ionized gas moving away from the star with velocities of a few hundred kilometers per second. Extragalactic jets are composed of relativistic …

The image depicts massive radio jets blasting away from a supermassive black hole at the center of the galaxy, which is seen as a faint dot between the two jets. The VLA Sky Survey …

2023年4月17日 · The flare-up may provide insights into the variability of black hole jets in distant galaxies, which are difficult to study because they are too far away. M87 is located 54 million …

2022年11月11日 · In this article, first the author present a short historical introduction to the discovery of extragalactic jets in active galactic nuclei (AGN), followed by a brief overview of …

2002年5月1日 · Here we review some of the most recent findings in jets from young stars and protostars (YSOs). We investigate several general questions of jet structure and dynamics, …

The largest known individual objects in the universe are carved out by extragalactic jets. These are giant radio galaxies which can have linear extents of up to several megaparsecs. It should …

2019年11月26日 · Extragalactic jets are the most powerful persistent sources of the universe. Those pointing at us are called blazars. Their relativistically boosted emission extends from …

Galactic and extragalactic jets present many similarities, and also many differences. Both seem to be powered by accretion of magnetised matter with angular momentum onto a compact …