False periodicities in quasar time-domain surveys
Monthly Notices of the Royal Astronomical Society(2016)
摘要
There have recently been several reports of apparently periodic variations in the light curves of quasars, e.g. PG 1302−102 by Graham et al. Any quasar showing periodic oscillations in brightness would be a strong candidate to be a close binary supermassive black hole and, in turn, a candidate for gravitational wave studies. However, normal quasars – powered by accretion on to a single, supermassi...
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关键词
methods: data analysis,methods: statistical,quasars: general
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