Quasars non cosmological red shift.

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SUMMARY

The discussion centers on the paper "On quasar host galaxies as tests of non-cosmological redshifts" by E. Zackrisson, published in MNRAS 359 (2005). It challenges the prevailing view that all quasars are at distances corresponding to their redshifts, proposing that some quasars may originate from local galaxies. The paper suggests that ejected quasars could exhibit unique spectral energy distributions, differing from typical low-redshift quasar host galaxies. A minimal test involving optical and near-IR broadband photometry is recommended to investigate these claims.

PREREQUISITES
  • Understanding of quasar redshift concepts
  • Familiarity with spectral energy distribution analysis
  • Knowledge of optical and near-IR photometry techniques
  • Basic principles of galaxy evolution and ejection scenarios
NEXT STEPS
  • Research "quasar redshift theories" for a deeper understanding of the debate
  • Explore "spectral energy distribution analysis" methods in astrophysics
  • Study "optical and near-IR broadband photometry" applications
  • Investigate "galaxy evolution models" related to ejected quasars
USEFUL FOR

Astronomers, astrophysicists, and researchers interested in quasar studies, galaxy formation, and the implications of non-cosmological redshifts.

wolram
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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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