Quasars non cosmological red shift.

In summary, the paper discusses the possibility of some quasars having redshift components not related to the expansion of the universe, potentially indicating that they were ejected from local galaxies. The author proposes a test based on the spectral energy distribution of these quasar host galaxies, which may differ significantly from those of most quasar host galaxies detected at low redshift. This test could potentially provide evidence for the existence of ejected quasars.
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http://arxiv.org/PS_cache/astro-ph/pdf/0506/0506115.pdf

Title: On quasar host galaxies as tests of non-cosmological redshifts
Authors: E. Zackrisson
Comments: 9 pages, 4 figures
Journal-ref: MNRAS 359 (2005), 1193

Despite a general consensus in the astronomical community that all quasars are located at the distances implied by their redshifts, a number of observations still challenge this interpretation, possibly indicating that some subpopulation of quasars may harbour significant redshift components not related to the expansion of the universe. It has been suggested that these objects may have been ejected from local galaxies and are likely to evolve into new galaxies themselves. Here, a test of such exotic scenarios is proposed, based on the spectral energy distribution of the galaxies hosting quasars with suspected ejection origin. Provided that the time scales over which the ejected objects manifest themselves as quasars is short, one would in the framework of ejection scenarios expect to find either no quasar host galaxy, a pseudo-host consisting of gas ionized by the quasar, or a host galaxy consisting of young stars only. It is argued that the spectral energy distributions corresponding to the latter two options should differ significantly from those of most quasar host galaxies detected at low redshift so far, thus providing a potential test of the claimed existence of ejected quasars. A minimal implementation of this test, involving optical and near-IR broadband photometry, is suggested.
 
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The interaction of unseen gravitons and photons may well explain the apparent paradoxes associated with the http://arxiv.org/PS_cache/astro-ph/pdf/0505/0505310.pdf .
 
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Related to Quasars non cosmological red shift.

What are quasars?

Quasars, short for "quasi-stellar radio sources," are extremely bright and distant objects in space that emit large amounts of energy. They are thought to be powered by supermassive black holes at the centers of galaxies.

How do quasars exhibit non-cosmological red shift?

Non-cosmological red shift refers to the red shift observed in the spectra of objects that is not caused by the expansion of the universe. Quasars exhibit this red shift because of the Doppler effect, where the light emitted from the quasar is stretched to longer wavelengths as it travels through space towards Earth.

What is the significance of quasars exhibiting non-cosmological red shift?

The discovery of non-cosmological red shift in quasars was initially seen as evidence against the expanding universe theory. However, it is now believed that this red shift is caused by the movement of gas around the supermassive black hole at the center of the quasar, rather than the expansion of the universe.

How do scientists use quasars to study the universe?

Quasars are incredibly useful tools for studying the universe due to their extreme brightness and distance. By observing the spectra of quasars, scientists can gather information about the composition of the gas and dust surrounding them, as well as the structure and evolution of the universe.

Can quasars be used as standard candles for measuring distances in the universe?

No, quasars cannot be used as standard candles for measuring distances in the universe. This is because their brightness can vary significantly, making it difficult to accurately determine their distance from Earth. Standard candles, such as Type Ia supernovae, have a consistent brightness and are used for distance measurements in the universe.

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