Properties of discontinuous and nova-amplified mass transfer in CVs

Abstract

We investigate the effects of discontinuous mass loss in recurrent outburst events on the long-term evolution of cataclysmic variables (CVs). Similarly we consider the effects of frictional angular momentum loss (FAML), i.e. interaction of the expanding nova envelope with the secondary. Numerical calculations of CV evolution over a wide range of parameters demon- strate the equivalence of a discontinuous sequence of nova cycles and the corresponding mean evolution (replacing envelope ejection by a continuous wind), even close to mass transfer instability. A formal stability analysis of discontinuous mass transfer confirms this, independent of details of the FAML model. FAML is a consequential angular momentum loss which amplifies the mass transfer rate driven by systemic angular momentum losses such as magnetic braking. We show that for a given v_exp and white dwarf mass the amplification increases with secondary mass and is significant only close to the largest secondary mass consistent with mass transfer stability. The amplification factor is independent of the envelope mass ejected during the outburst, whereas the mass transfer amplitude induced by individual nova outbursts is proportional to it.

16 pages, 19 figures; to appear in MNRAS

Cited by in corpus (25)

• The Evolution of Cataclysmic Variables as Revealed by their Donor Stars
• An Exploration of the Paradigm for the 2-3 Hour Period Gap in Cataclysmic Variables
• Three in one go: consequential angular momentum loss can solve major problems of CV evolution
• Variable Star Network: World Center for Transient Object Astronomy and Variable Stars
• Theoretical Considerations on the Properties of Accreting Millisecond Pulsars
• Long-term evolution of compact binaries with irradiation feedback
• No cataclysmic variables missing: higher merger rate brings into agreement observed and predicted space densities
• MOCCA-SURVEY database I. Accreting white dwarf binary systems in globular clusters -- IV. cataclysmic variables -- properties of bright and faint populations
• Cataclysmic variable evolution and the white dwarf mass problem: A Review
• The first pre-supersoft X-ray binary
• The first nova eruption in a novalike variable: YZ Ret as seen in X-rays and gamma-rays
• Nova-induced mass transfer variations
• The multi-wavelength view of shocks in the fastest nova V1674 Her
• MOCCA-SURVEY database I. Accreting white dwarf binary systems in globular clusters -- III. Cataclysmic variables -- Implications of model assumptions
• The Galactic Nova Rate: Estimates from the ASAS-SN and Gaia Surveys
• Transients from the Cataclysmic Deaths of Cataclysmic Variables
• Neglected X-ray discovered polars: II: The peculiar eclipsing binary HY Eridani
• MOCCA-SURVEY database I. Accreting white dwarf binary systems in globular clusters -- II. Cataclysmic variables -- progenitors and population at birth
• Formation and Evolution of Accreting Compact Objects
• A Far Ultraviolet Spectroscopic Explorer Survey of High Declination Dwarf Novae
• Can friction of the nova envelope account for the extra angular momentum loss in cataclysmic variables?
• On the White Dwarf Mass Problem of Cataclysmic Variables
• 1RXH J082623.6-505741: a new long-period cataclysmic variable with an evolved donor and a low mass transfer rate
• The orbital ephemeris of the classical nova RR Pictoris: presence of a third body?
• Non-conservative Evolution of Cataclysmic Variables