English

The Quasar Distribution in a Static Universe

Astrophysics 2009-10-22 v1

Abstract

A crucial test of any cosmological model is the distribution of distant objects such as quasars. Because of well defined selection criteria quasars found by a ultraviolet excess (UVX) survey are ideal candidates for testing the model out to a redshift of z = 2.2. The static cosmology proposed by Crawford (1993) is used to analyse a recent quasar survey (BOYLE et al MNRAS 227, 717 1990). It is shown that the distribution of number of quasars from the survey as a function of redshift is in excellent agreement with the predictions of the model. A V/V_m test on 351 confirmed quasars with defined redshifts has a mean value of 0.568\pm 0.015 with the discrepancy being most likely due to incompleteness of the catalogue at low redshifts. For the redshift range 1.5<z<2.21.5 < z < 2.2 where the accuracy of the cosmological model is critical V/V_m was 0.51 \pm 0.02. A well defined quasar luminosity function is derived that has a peak at M_B = -21.16 mag and is well fitted by a Gaussian distribution in absolute magnitude with a standard deviation of 1.52 magnitudes.

Keywords

Cite

@article{arxiv.astro-ph/9407028,
  title  = {The Quasar Distribution in a Static Universe},
  author = {David F. Crawford},
  journal= {arXiv preprint arXiv:astro-ph/9407028},
  year   = {2009}
}

Comments

23 pages, Latex, submitted to Apj, report dfc9403