Cosmological number density in depth from V/Vm distribution

Details Cosmological number density in depth from V/Vm distribution Cosmological number density in depth from V/Vm distribution

2009-03-13

arxiv.org/abs/0903.2442v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

3 pages, 3 tables, briefer version for Proceedings of 27th Meeting of Astronomical Society of India, Indian Institute of Astro

Scientific paper

Using distribution p(V/Vm) of V/Vm rather than just mean in V/Vm-test leads directly to cosmological number density n(z). Calculation of n(z) from p(V/Vm) is illustrated using best sample (of 76 quasars) available in 1981, when method was developed. This is only illustrative, sample being too small for any meaningful results. Keywords: V/Vm . luminosity volume . cosmological number density . V/Vm distribution

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