Note that the right wall is brighter than the left wall because the right region is denser with gas, thus there are more particle interaction. We could not determine whether particle jets from THE central source, known as SS433, were truly stretching out the remnant, or whether the jets were interacting with the surrounding space in such a way to create the illusion of a remnant. The RXTE data, together with many earlier multi-wavelength imaging studies, show that jets are interacting with a remnant and distorting it. A supernova remnant forms when a star several times more massive than our sun runs out of its nuclear fuel and explodes. The expanding gases from the explosion form a shell that spreads out into the surrounding universe and eventually dissipates.
Particle jets form as a byproduct of a process called accretion.
Black holes and neutron stars, which both exert extreme gravitational force, can pull gas away from a neighboring star. This transfer of gas onto the black hole or neutron star, called accretion, often produces X-ray light as the gas is accelerated by gravity to very high speeds. Through a mechanism still poorly understood, jets of matter can shoot away from the polar regions of neutron stars or perpendicularly from the direction of accretion onto black holes. It is not known whether the central object in SNR W50 is a binary system containing a black hole or one containing a neutron star. The combination of particle jets trapped within the bubble of the supernova remnant is likely common, for the star that explodes to form a supernova remnant leaves behind a neutron star or black hole as its core.