Van de Sande, M., Scaringi, S. and Knigge, C. (2015) The rms-flux relation in accreting white dwarfs: another nova-like variable and the first dwarf nova. Monthly Notices of the Royal Astronomical Society, 448 (3), 2430-2437. (doi:10.1093/mnras/stv157).
Abstract
We report on the detection of the linear rms-flux relation in two accreting white dwarf binary systems: V1504 Cyg and KIC 8751494. The rms-flux relation relates the absolute root-mean-square (rms) variability of the light curve to its mean flux. The light curves analysed were obtained with the Kepler satellite at a 58.8 s cadence. The rms-flux relation was previously detected in only one other cataclysmic variable (CV), MV Lyr. This result reinforces the ubiquity of the linear rms-flux relation as a characteristic property of accretion-induced variability, since it has been observed in several black hole binaries, neutron star binaries and active galactic nuclei. Moreover, its detection in V1504 Cyg is the first time the rms-flux relation has been detected in a dwarf nova-type CV during quiescence. This result, together with previous studies, hence points towards a common physical origin of accretion-induced variability, independent of the size, mass or type of the central accreting compact object.
More information
Identifiers
Catalogue record
Export record
Altmetrics
Contributors
University divisions
- Faculties (pre 2011 reorg) > Faculty of Engineering Science & Maths (pre 2011 reorg) > Physics & Astronomy (pre 2011 reorg)
Current Faculties > Faculty of Engineering and Physical Sciences > School of Physics and Astronomy > Physics & Astronomy (pre 2011 reorg)
School of Physics and Astronomy > Physics & Astronomy (pre 2011 reorg) - Current Faculties > Faculty of Engineering and Physical Sciences > School of Physics and Astronomy > Astronomy Group
School of Physics and Astronomy > Astronomy Group
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.