Sentences with phrase «emitted by quasars»

The observatory includes three radio telescopes for Very Long Baseline Interferometry (VLBI), which receive radio waves emitted by quasars.

Not exact matches

It was not until the detection of quasars, which allow astronomers to see the light emitted by matter falling into black holes, that we had evidence that they were real objects and not just mathematical curiosities predicted by Einstein's general theory of relativity.

That was consistent with a quasar, but dust blocked the definitive quasar signature of spectral lines emitted by gas near the black hole.

By gathering the radio signals emitted by any particular quasar at various far - flung points about the globe and measuring the tiny time lag between the signal's arrival at the different locations, people like Ma and Behrend can tell exactly how far apart those locations arBy gathering the radio signals emitted by any particular quasar at various far - flung points about the globe and measuring the tiny time lag between the signal's arrival at the different locations, people like Ma and Behrend can tell exactly how far apart those locations arby any particular quasar at various far - flung points about the globe and measuring the tiny time lag between the signal's arrival at the different locations, people like Ma and Behrend can tell exactly how far apart those locations are.

So the astronomers studied light emitted by 38 faraway quasars.

The distance to the quasar is so great (about 10 billion light - years) that the emitted light is «stretched» by the expansion of the universe from an invisible ultraviolet wavelength to a visible shade of violet by the time it reaches the 10 - meter Keck I telescope and the LRIS (Low Resolution Imaging Spectrometer) used for this discovery.

The remote quasars are so bright that they drown out light emitted by stars in their proto - galactic clump of stars (more illustrations).

Since these filaments do not emit any light of their own, the astronomers studied their structure and composition by analyzing light from distant quasars as it passed through the cosmic web.

If the quasar is so distant that the light we observe from it escaped during the «dark ages», its UV light will have been absorbed by the neutral hydrogen present at the time; if the quasar is closer and the light we observe was emitted only after the reionisation, there will have been no neutral hydrogen to impede it (see diagram below).