Variability & polarization of luminous quasars (Teerikorpi+, 2000)

Details Variability & polarization of luminous quasars (Teerikorpi+, 2000) Variability & polarization of luminous quasars (Teerikorpi+, 2000)

May 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000ycat..33530077t&link_type=abstract

VizieR On-line Data Catalog: J/A+A/353/77. Originally published in: 2000A&A...353...77T

Mathematics

Logic

Qsos, Photometry: Ubv, Polarization

Scientific paper

We use 250 radio loud quasars with UBV photometry available and z<1.65, to study whether there is a gap in the distribution of absolute magnitudes, from MV~-25.8 (for H0=100km/s/Mpc, q0=0.5) to -25.3, as was suggested by Teerikorpi (1981A&A....98..309T; Paper I). In Paper I it was also proposed that there is a class of the most luminous radio quasars, differing in some properties from fainter quasars on the other side of the gap. The main conclusion of Paper I remains intact. The gap in the distribution of absolute magnitudes is confirmed with the new formalism of cosmological Malmquist bias (Teerikorpi, 1998A&A...339..647T), which allows one to use heterogeneous samples with magnitude inhomogeneity. (2 data files).

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