Bibcode
Scarpa, R.; Urry, C. M.
Referencia bibliográfica
Blazar Demographics and Physics, ASP Conference Series, Vol. 227. Edited by Paolo Padovani and C. Megan Urry. San Francisco: Astronomical Society of the Pacific. ISBN: 1-58381-059-5, p.77
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0
2001
Número de citas
1
Número de citas referidas
1
Descripción
Empirical evidence suggests that elliptical galaxies hosting a radio
source may not be different from normal non-radio ellipticals. To test
this possibility, we use Monte Carlo simulations to reproduce the
distribution of radio galaxies in the radio-optical luminosity plane.
The input parameters of the simulation are the optical luminosity
function (LF) of ellipticals and the radio LF of radio galaxies, linked
by a function giving the probability for an elliptical to be a radio
galaxy. Simulations reproduce the observations well, supporting
unification of radio and non-radio ellipticals, provided that the
probability of an elliptical hosting a radio source is proportional to
the square of its optical luminosity. The difference of 0.5 magnitudes
in average optical luminosity between FRI and FRII radio galaxies is
also explained in this framework.