Detection of quasars in the time domain

Abstract

The time domain is the emerging forefront of astronomical research with new facilities and instruments providing unprecedented amounts of data on the temporal behavior of astrophysical populations. Dealing with the size and complexity of this requires new techniques and methodologies. Quasars are an ideal work set for developing and applying these: they vary in a detectable but not easily quantifiable manner whose physical origins are poorly understood. In this paper, we will review how quasars are identified by their variability and how these techniques can be improved, what physical insights into their variability can be gained from studying extreme examples of variability, and what approaches can be taken to increase the number of quasars known. These will demonstrate how astroinformatics is essential to discovering and understanding this important population.

10 pages, 6 figures, IAU Symposium 325, "Astroinformatics"

References in corpus (9)

• Modeling the Time Variability of SDSS Stripe 82 Quasars as a Damped Random Walk
• An ultraviolet-optical flare from the tidal disruption of a helium-rich stellar core
• The Discovery of the First "Changing Look" Quasar: New Insights into the Physics & Phenomenology of AGN
• False periodicities in quasar time-domain surveys
• A supermassive binary black hole with triple disks
• Extracting Information from AGN Variability
• A Degeneracy in DRW Modelling of AGN Light Curves
• Emission Signatures from Sub-parsec Binary Supermassive Black Holes I: Diagnostic Power of Broad Emission Lines
• Big Outliers Versus Heavy Tails: what to use?

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