The variability of optically selected QSO sample.

Details The variability of optically selected QSO sample. The variability of optically selected QSO sample.

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999ppmto..18..230h&link_type=abstract

Publ. Purple Mt. Obs., Vol. 18, No. 3, p. 230 - 234

Physics

Quasars: Variability

Scientific paper

The authors report on a variability study of optically selected quasar sample. Using the CCD photometry data, they searched the long term (years) variability of the quasar sample and found that about 40% optically selected quasars varied over a time line of 18 years. A negative correlation between variability and luminosity for variable quasars, i.e. more luminous QSOs show less variability, is found, and a correlation between variability and redshift may exist.

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