Accretion-induced variability links young stellar objects, white dwarfs, and black holes

dc.creatorScaringi, Simone
dc.creatorMaccarone, Thomas J. (TTU)
dc.creatorKörding, Elmar
dc.creatorKnigge, Christian
dc.creatorVaughan, Simon
dc.creatorMarsh, Thomas R.
dc.creatorAranzana, Ester
dc.creatorDhillon, Vikram S.
dc.creatorBarros, Susana C. C.
dc.date.accessioned2023-01-31T16:44:21Z
dc.date.available2023-01-31T16:44:21Z
dc.date.issued2015
dc.descriptionCopyright © 2015, The Authors. This is an open-access article distributed under the terms of the Creative Commons Attribution license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.en_US
dc.description.abstractThe central engines of disc-accreting stellar-mass black holes appear to be scaled down versions of the supermassive black holes that power active galactic nuclei. However, if the physics of accretion is universal, it should also be possible to extend this scaling to other types of accreting systems, irrespective of accretor mass, size, or type. We examine new observations, obtained with Kepler/K2 and ULTRACAM, regarding accreting white dwarfs and young stellar objects. Every object in the sample displays the same linear correlation between the brightness of the source and its amplitude of variability (rms-flux relation) and obeys the same quantitative scaling relation as stellar-mass black holes and active galactic nuclei. We also show that the most important parameter in this scaling relation is the physical size of the accreting object. This establishes the universality of accretion physics from proto-stars still in the star-forming process to the supermassive black holes at the centers of galaxies.en_US
dc.identifier.citationScaringi, S., Maccarone, T. J., Körding, E., Knigge, C., Vaughan, S., Marsh, T. R., Aranzana, E., Dhillon, V. S., & Barros, S. C. C. (2015). Accretion-induced variability links young stellar objects, white dwarfs, and black holes. Science Advances, 1(9), e1500686. https://doi.org/10.1126/sciadv.1500686en_US
dc.identifier.urihttps://doi.org/10.1126/sciadv.1500686
dc.identifier.urihttps://hdl.handle.net/2346/90495
dc.language.isoengen_US
dc.subjectAccretionen_US
dc.subjectBlack Holesen_US
dc.subjectWhite Dwarfsen_US
dc.subjectYoung-Stellar Objectsen_US
dc.subjectTimingen_US
dc.subjectVariabilityen_US
dc.subjectUnificationen_US
dc.titleAccretion-induced variability links young stellar objects, white dwarfs, and black holesen_US
dc.typeArticleen_US

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