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We have investigated the outburst properties of low-mass X-ray binary transients (LMXBTs) based on a comprehensive study of the outbursts observed in the past few decades. The outburst rates were estimated based on the X-ray monitoring data…

High Energy Astrophysical Phenomena · Physics 2019-01-23 Jie Lin , Zhen Yan , Zhanwen Han , Wenfei Yu

We report the results of a statistical study of cyclical period changes in cataclysmic variables (CVs). Assuming the third-body hypothesis as the cause of period changes, we estimate the third-body mass, $m_3$, and its separation from the…

Solar and Stellar Astrophysics · Physics 2024-08-16 Leandro Souza , Raymundo Baptista

I review our current understanding of the evolution of cataclysmic variables (CVs). I first provide a brief introductory "CV primer", in which I describe the physical structure of CVs, as well as their astrophysical significance. The main…

Solar and Stellar Astrophysics · Physics 2011-09-05 Christian Knigge

Cataclysmic variable (CVs) are close interacting binaries in which a white dwarf accretes materials from a low mass main sequence companion. CVs can experience nova eruptions due to low mass transfer rates. In the standard theory of CV…

Solar and Stellar Astrophysics · Physics 2025-07-31 Wenshi Tang , Xiangdong Li , Bo Wang

The formation of cataclysmic variables (CVs) has long been modeled as a product of common envelope evolution (CEE) in isolated binaries. However, a significant fraction of intermediate-mass stars -- the progenitors of the white dwarfs (WDs)…

Solar and Stellar Astrophysics · Physics 2025-07-14 Cheyanne Shariat , Kareem El-Badry , Smadar Naoz , Antonio C. Rodriguez , Jan van Roestel

Depending on the outcome of pre-CV formation, mass transfer may set in under thermally unstable conditions in a significant number of systems. Full computations have shown that such an early phase of thermal-timescale mass transfer usually…

Astrophysics · Physics 2007-05-23 Klaus Schenker , Andrew R. King

Chandra observations of elliptical galaxies have revealed large numbers of Low Mass X-ray Binaries (LMXBs) accreting at rates above 10^-9 solar masses per year. One scenario which generates this transfer rate from an old stellar population…

Astrophysics · Physics 2009-11-07 Anthony L. Piro , Lars Bildsten

About a quarter of massive binary stars undergo mass transfer while both stars burn hydrogen at their cores, first on the thermal and then on the nuclear timescale. The nuclear timescale mass transfer leads to observable counterparts: the…

Solar and Stellar Astrophysics · Physics 2022-03-14 K. Sen , N. Langer , P. Marchant , A. Menon , S. E. de Mink , A. Schootemeijer , C. Schürmann , L. Mahy , B. Hastings , K. Nathaniel , H. Sana , C. Wang , X. T. Xu

A binary in which a slightly evolved star starts mass transfer to a neutron star can evolve towards ultra-short orbital periods under the influence of magnetic braking. This is called magnetic capture. We investigate in detail for which…

Astrophysics · Physics 2009-11-10 M. V. van der Sluys , F. Verbunt , O. R. Pols

(Abridged) We calculate the full stellar-structural evolution of donors in AM CVn systems formed through the WD channel coupled to the binary's evolution. Contrary to assumptions made in prior modelling, these donors are not fully…

We study the evolution of close binary systems formed by a normal (solar composition), intermediate mass donor star together with a neutron star. We consider models including irradiation feedback and evaporation. These non-standard…

Solar and Stellar Astrophysics · Physics 2015-06-23 O. G. Benvenuto , M. A. De Vito , J. E. Horvath

I briefly review the theory of soft X-ray transient systems. Irradiation of the accretion disc faces by the central X-ray source determines both the occurrence and the nature of the outbursts, in particular forcing these to be long viscous…

Astrophysics · Physics 2007-05-23 A. R. King

Recent studies revealed discrepancies between observations and the predictions of the standard magnetic braking (MB). Although alternative models have been broadly discussed in neutron star binaries, they have not been systematically tested…

High Energy Astrophysical Phenomena · Physics 2026-05-27 Wen-Shi Tang , Xiang-Dong Li , Zhe Cui , Zhu-Ling Deng , Wei-Min Gu

Stable mass transfer from a massive post-main sequence (post-MS) donor is thought to be a short-lived event of thermal-timescale mass transfer which strips the donor star of nearly its entire H-rich envelope, producing a hot helium star.…

Solar and Stellar Astrophysics · Physics 2022-06-15 Jakub Klencki , Alina G. Istrate , Gijs Nelemans , Onno Pols

Observations of Cataclysmic Variables show a number of phenomena that do not fit easily into the standard magnetic braking scenario. These include the large spread in mass transfer rates, the low surface temperatures of many of the…

Astrophysics · Physics 2007-05-23 H. C. Spruit , R. E. Taam

Massive binary evolution models are needed to predict massive star populations in star forming galaxies, the supernova diversity, and the number and properties of gravitational wave sources. Such models are often computed using so called…

Solar and Stellar Astrophysics · Physics 2024-10-23 Christoph Schürmann , Norbert Langer , Joana A. Kramer , Pablo Marchant , Chen Wang , Koushik Sen

We show the presence of CVs with orbital periods in the range 3.5-7 h and mass ratios q=M2/M1 above the critical values for dynamically stable mass transfer. We explore whether the magnetic fields produced in the secondaries alter the…

Astrophysics · Physics 2007-05-23 A. Bianchini , F. Tamburini , P. E. Johnson

Angular momentum loss through magnetic braking drives the spin-down of low-mass stars and the orbital evolution of various close binary systems. Current theories for magnetic braking, often calibrated for specific types of systems, predict…

Solar and Stellar Astrophysics · Physics 2025-03-31 Joaquín A. Barraza-Jorquera , Matthias R. Schreiber , Diogo Belloni

We summarize the channels formation of neutron stars (NS) in single or binary evolution and the classic recycling scenario by which mass accretion by a donor companion accelerates old NS to millisecond pulsars (MSP). We consider the…

High Energy Astrophysical Phenomena · Physics 2020-11-24 Francesca D'Antona , Marco Tailo

Binary millisecond pulsars (BMSPs) are thought to have evolved from low-mass X-ray binaries (LMXBs). If the mass transfer in LMXBs is driven by nuclear evolution of the donor star, the final orbital period is predicted to be well correlated…

High Energy Astrophysical Phenomena · Physics 2015-06-22 Kun Jia , Xiang-Dong Li
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