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We resume the discussion about irradiation-driven mass transfer cycles in semi- detached compact binary systems. The analytical model that describes the onset of these cycles, which occur on a thermal timescale of the donor star, is…

Astrophysics · Physics 2009-11-10 A. Büning , H. Ritter

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

In this paper, globular star clusters which contain a sub-system of stellar-mass black holes (BH) are investigated. This is done by considering two-component models, as these are the simplest approximation of more realistic multi-mass…

Astrophysics of Galaxies · Physics 2015-06-15 Philip G. Breen , Douglas C. Heggie

The stability criteria of rapid mass transfer and common envelope evolution are fundamental in binary star evolution. They determine the mass, mass ratio and orbital distribution of many important systems, such as X-ray binaries, Type Ia…

Solar and Stellar Astrophysics · Physics 2023-03-08 Hongwei Ge , Christopher A. Tout , Xuefei Chen , Arnab Sarkar , Dominic J. Walton , Zhanwen Han

We show that stable disk accretion should be very rare among low-mass X-ray binaries and cataclysmic variables whose evolution is driven by the nuclear expansion of the secondary star on the first giant branch. Stable accretion is confined…

Astrophysics · Physics 2009-10-30 A. R. King , J. Frank , U. Kolb , H. Ritter

We study the long-term evolution of massive black hole binaries (MBHBs) at the centers of galaxies using detailed scattering experiments to solve the full three-body problem. Ambient stars drawn from a isotropic Maxwellian distribution…

Astrophysics · Physics 2011-02-11 A. Sesana , F. Haardt , P. Madau

Supermassive black hole binaries (BHBs) are expected to be one of the most powerful sources of low-frequency gravitational waves (GWs) for future space-borne detectors. Prior to the GW emission stage, BHBs evolving in gas-poor nuclei shrink…

Astrophysics of Galaxies · Physics 2018-05-18 Elisa Bortolas , Michela Mapelli , Mario Spera

If supermassive black holes (BHs) are generically present in galaxy centers, and if galaxies are built up through hierarchical merging, BH binaries are at least temporary features of most galactic bulges. Observations suggest, however, that…

Astrophysics · Physics 2009-10-31 Andrew Gould , Hans-Walter Rix

Thermal timescale mass transfer generally occurs in close binaries where the donor star is more massive than the accreting star. The mass transfer rates are usually estimated in terms of the Kelvin-Helmholtz timescale of the donor star. But…

Astrophysics · Physics 2009-11-13 Xiao-Jie Xu , Xiang-Dong Li

Low-mass X-ray binaries (LMXBs) with neutron stars show quite different features which depend on the rate of mass transfer from the donor star. With a high transfer rate the Z sources are in a persistent soft spectral state, with a moderate…

High Energy Astrophysical Phenomena · Physics 2024-06-05 E. Meyer-Hofmeister , Huaqing Cheng , B. F. Liu

Gravitational waves from the binary black hole (BH) merger GW150914 may enlighten our understanding of ultra-luminous X-ray sources (ULXs), as BHs>30Msun can reach luminosities>4x10^39 erg s^-1 without exceeding their Eddington limit. It is…

High Energy Astrophysical Phenomena · Physics 2017-08-09 Pablo Marchant , Norbert Langer , Philipp Podsiadlowski , Thomas M. Tauris , Selma de Mink , Ilya Mandel , Takashi J. Moriya

Ground-based optical photometry of the counterparts of High-Mass X-ray Binaries (HMXBs) has revealed the presence of periodic modulations on timescales of ~0.3-0.5 d. More recent space-based observations Corot and TESS of OB and Be stars…

Solar and Stellar Astrophysics · Physics 2022-08-17 Gavin Ramsay , Pasi Hakala , Philip A. Charles

Black hole - neutron star $(BH/NS)$ binaries are of interest in many ways: they are intrinsically multi-messenger systems, highly transient, radiate gravitational waves detectable by LIGO, and may produce $\gamma$-ray bursts. Although it…

High Energy Astrophysical Phenomena · Physics 2024-12-10 Yossef Zenati , Mor Rozner , Julian H Krolik , Elias R Most

To date, various formation channels of merging events have been heavily explored with the detection of nearly 100 double black hole (BH) merger events reported by the LIGO-Virgo-KAGRA (LVK) Collaboration. We here systematically investigate…

High Energy Astrophysical Phenomena · Physics 2023-03-08 Y. Qin , R. -C. Hu , G. Meynet , Y. Z. Wang , J. -P. Zhu , H. F. Song , X. W. Shu , S. C. Wu

The formation of low-mass X-ray binaries (LMXBs) is an ongoing challenge in stellar evolution. The important subset of LMXBs are the binary systems with a neutron star (NS) accretor. In NS LMXBs with non-degenerate donors, the mass transfer…

Solar and Stellar Astrophysics · Physics 2023-10-18 K. X. Van , N. Ivanova

Stellar-mass binary black holes may have circumbinary disks if formed through common-envelope evolution or within gaseous environments. Disks can drive binaries into wider and more eccentric orbits, while gravitational waves harden and…

High Energy Astrophysical Phenomena · Physics 2024-10-29 Isobel M. Romero-Shaw , Samir Goorachurn , Magdalena Siwek , Christopher J. Moore

The massive semi-detached binary with a long-term decreasing orbital period may involve a rapid mass-transfer phase in Case A, and thus they are good astrophysical laboratories for investigating the evolution of massive binary stars. In…

Solar and Stellar Astrophysics · Physics 2024-11-07 Fu-Xing Li , Sheng-Bang Qian , Li-ying Zhu , Wen-Ping Liao , er-gang Zhao , Min-Yu Li , Qi-Bin Sun , Lin-Feng Chang , Wen-Xu Lin

The spin of a number of black holes (BHs) in binary systems has been measured. In the case of BHs found in low-mass X-ray binaries (LMXBs) the observed values are in agreement with some theoretical predictions based on binary stellar…

High Energy Astrophysical Phenomena · Physics 2015-10-13 Enrique Moreno Méndez , Matteo Cantiello

The orbital period evolution of X-ray binaries provides fundamental clues to understanding mechanisms of angular momentum loss from these systems. We present an X-ray eclipse timing analysis of the transient low mass X-ray binary AX…

High Energy Astrophysical Phenomena · Physics 2016-09-21 G. Ponti , K. De , T. Munoz-Darias , L. Stella , K. Nandra

In this chapter we review the formation and evolution of compact binaries with neutron star and/or black hole components (i.e. LMXBs, HMXBs, binary pulsars). After an introduction we discuss stellar evolution in binaries and the processes…

Astrophysics · Physics 2007-05-23 Thomas M. Tauris , Ed van den Heuvel