The V/Vm Test for Quasars - a New Interpretation

Details The V/Vm Test for Quasars - a New Interpretation The V/Vm Test for Quasars - a New Interpretation

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...251....1h&link_type=abstract

Astrophysical Journal, Vol.251, P. 1, 1981

Astronomy and Astrophysics

Astrophysics

10

Scientific paper

The V/Vm test is discussed, and it is suggested that if certain problems of misidentification are not taken into account, the expected value for V/Vm without evolution is not , but depends on the quasar luminosity function and is compatible with currently observed values of about 0.68. A complete sample of quasars is examined, and it appears that beyond a redshift of about 0.5, the evidence for evolution is not strong. Differences in the value of m> for steep and flat spectrum quasars can be simply explained as differences in luminosity function.

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