Subsequent research demonstrated that the shape of the X-ray spectrum of these objects at low redshifts did not match that of the diffuse background.
In addition to myriad point sources, astronomers have found a diffuse background of X-ray radiation emanating from all directions; unlike cosmic background radiation, it appears to have many distant individual sources.
The launch in 1978 of an imaging X-ray telescope aboard the Einstein Observatory, however, showed that a large fraction of the seemingly diffuse background of X-rays, perhaps all of it, could be accounted for by a superposition of unresolved point sources i.e., quasars.
A diffuse background radiation field is also computed self-consistently in our procedure.
Diffuse background noise components were simulated using the method proposed in [50].
Note that here the interference includes interfering sources and diffuse background noise.
In scenario 4, additional diffuse background noise is added to the microphone.
This, in turn, means that the universe's diffuse background of ultraviolet radiation plays a smaller role in the ionization process.
The PVP and EC diffraction patterns exhibit a diffuse background with two diffraction haloes, showing that the polymers are amorphous.
To overcome the diffuse background from photons and charged particles the SRD readout must have a time resolution better than 10 ns.
The influence of reverberant, diffuse background noise on the measurement accuracy in sound power determination with the intensity technique is investigated.
