Quasars sentence example

quasars
  • intergalactic gas, quasars, and other objects will be presented, and their chemical and structural nature discussed.
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  • interplanetary scintillation; finding quasars as stars with strange spectra.
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  • Several strong candidates for Type 2, or obscured quasars have been discovered.
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  • finding the powerful quasars responsible for the X-ray background radiation.
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  • The total number of ROSAT detected radio quasars from the above three sources is 654 objects.
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  • Further evidence comes from astronomical observation - astronomers look into the past when they look into space and have been measuring and observing quasars.
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  • The objects called quasars are very strong point like radio sources, which can, like all radio objects, be detected in daylight.
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  • Most types of cosmic object known to exist, from dwarf stars to the most distant quasars, are known to emit X-rays.
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  • It is a suggestive coincidence that the space density of bright optical quasars also reached a peak sometime around z = 2-3.
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  • The low and high redshift quasars are found very similar in their emission characteristics, although differences exist.
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  • In several quasars, small, discrete sources have been found that change position from one observation to the next.
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  • Almost one quarter of these are members of a previously unknown class of X-ray bright, flat spectrum, radio-loud quasars.
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  • Some astronomers supported this point of view, and have sought evidence for physical associations between high-redshift quasars and low-redshift normal galaxies.
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  • HI can be studied in absorption against background quasars out to z 4 with the HIA.
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  • redshift of the quasars in the cluster.
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  • Their spectra also have the same large redshift of the quasars in the cluster.
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  • redshift quasars are found very similar in their emission characteristics, although differences exist.
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  • Examples include the discovery of pulsars while studying interplanetary scintillation; finding quasars as stars with strange spectra.
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  • Finding the powerful quasars responsible for the X-ray background radiation.
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