New high-redshift quasar age issue

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SUMMARY

The discussion centers on the implications of a new quasar, as reported by BBC, which challenges existing models of quasars. Key issues raised include the presence of spectroscopic binaries with short periods, the lack of observed time dilation in quasars compared to supernovae, the potential proximity of some quasars relative to their redshift predictions, and difficulties in identifying supernova progenitors. The conversation emphasizes the need for a scientific paper to substantiate these claims before further discussion can occur.

PREREQUISITES
  • Understanding of quasar models and their significance in cosmology
  • Familiarity with spectroscopic analysis and redshift measurements
  • Knowledge of time dilation effects in astrophysics
  • Awareness of supernovae and their progenitor identification challenges
NEXT STEPS
  • Research the latest findings on quasar models and their implications for cosmology
  • Study the role of spectroscopic binaries in astrophysical observations
  • Explore the concept of time dilation in various astronomical phenomena
  • Investigate the methods for identifying supernova progenitors and their significance
USEFUL FOR

Astronomers, astrophysicists, and cosmologists interested in the latest challenges to quasar models and the implications for our understanding of the universe.

sebastian_1
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Does the new quasar http://news.bbc.co.uk/2/hi/science/nature/649059.stm indicate a challenge for models of quasars? Some of the ritz-type models do provide explanations for these, e.g., http://faculty.washington.edu/devasia/Physics/Devasia_cosmology.pdf

It provides potential explanations to current anomalies in cosmological observations such as: (i) the presence of large number of spectroscopic binaries with short time periods even though nearby visual binaries are not seen with such short time periods; (ii) the apparent lack of time dilation in quasar observations even though time dilation has been observed in supernovae (SNe) light curves; (iii) the possibility that some quasars might be closer than the distance predicted by their large spectroscopic redshifts; and (iv) the difficulty in identifying supernovae progenitors.
 
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We can't really discuss this based on a news article. I don't know if there has been an actual scientific paper on the results, but if and when there is one, that is what discussion here should be based on.

Pending a valid source, this thread is closed.
 

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