The universal power spectrum of Quasars in optical wavelengths: Break timescale scales directly with both black hole mass and accretion rate

2023/06/19 by P. Arévalo, E. Churazov, Arevalo, P. +13 · 7 citations
Engineering · Mathematics · Physics and Astronomy · #Mechanics and Biomechanics Studies #Statistics Education and Methodologies #Astrophysical Phenomena and Observations

paper · pdf · doi:10.48550/arxiv.2306.11099

Abstract

Aims: Establish the dependence of variability properties, such as characteristic timescales and variability amplitude, on basic quasar parameters such as black hole mass and accretion rate, controlling for the rest-frame wavelength of emission. Methods: Using large catalogs of quasars, we selected the g-band light curves for 4770 objects from the Zwicky Transient Facility archive. All selected objects fall into a narrow redshift bin, 0.6

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